> ## Content Index > Fetch the complete content index at: https://a9droid.com/llms.txt > Use this file to discover other available public pages before exploring further. # Best Portable 4TB External SSD for Creators - URL: https://a9droid.com/best-portable-4tb-external-ssd/ - Published: 2026-09-07T07:21:30.000Z - Updated: 2026-09-07T09:49:14.000Z - Description: Seven 4TB drives, ranked by published transfer speed, weight and warranty. Two of them are not solid state at all, and knowing which changes what you should pay. - Author: Samuel Harris - Tags: Data Storage, Storage, Computers And Accessories The best portable 4TB external SSD is the SanDisk 4TB Extreme Portable SSD, which pairs an up-to-2000MB/s claim with a 1.6 oz body measuring 0.39 x 3.35 x 2 in. If you'd rather have thermal engineering than the lightest shell, the Samsung T9 Portable SSD 4TB is the pick, at 4.32 oz with a 5 Year Limited Warranty behind it. Two of the seven drives here are spinning hard disks, and that split explains almost every price gap in this group. Entry money in 4TB buys you a mechanical drive with platters inside. Mid money buys a genuine SSD at roughly 1050MB/s. The top of this set buys the 2000MB/s tier, and that jump is the only one you can feel. In this guide 1. [Best portable 4TB external SSD at a glance](#best-portable-4tb-external-ssd-at-a-glance) 2. [How I screened this 4TB field down to seven](#how-i-screened-this-4tb-field-down-to-seven) 3. [Two of these are not solid state at all](#two-of-these-are-not-solid-state-at-all) 4. [1\. Sandisk 4TB Extreme Portable SSD — Best overall](#1-sandisk-4tb-extreme-portable-ssd-%E2%80%94-best-overall) 5. [2\. Samsung T9 Portable SSD 4TB — Best premium](#2-samsung-t9-portable-ssd-4tb-%E2%80%94-best-premium) 6. [3\. Samsung T7 Portable SSD 4TB Titan Gray — Most versatile](#3-samsung-t7-portable-ssd-4tb-titan-gray-%E2%80%94-most-versatile) 7. [4\. SSK Portable SSD 4TB External Solid State Hard Drive USB C — Best lightweight](#4-ssk-portable-ssd-4tb-external-solid-state-hard-drive-usb-c-%E2%80%94-best-lightweight) 8. [5\. Crucial X8 4TB Portable SSD — Best for families](#5-crucial-x8-4tb-portable-ssd-%E2%80%94-best-for-families) 9. [6\. Seagate Portable 4TB External Hard Drive HDD — Best upgrade](#6-seagate-portable-4tb-external-hard-drive-hdd-%E2%80%94-best-upgrade) 10. [7\. WD 4TB My Passport — Best budget pick](#7-wd-4tb-my-passport-%E2%80%94-best-budget-pick) 11. [What actually decides a portable 4TB external SSD?](#what-actually-decides-a-portable-4tb-external-ssd) 12. [How much does weight really matter?](#how-much-does-weight-really-matter) 13. [What does the 4TB label leave out?](#what-does-the-4tb-label-leave-out) 14. [The verdict](#the-verdict) 15. [FAQ](#faq) ## Best portable 4TB external SSD at a glance | Pick | Read speed | Weight | Price | | ------------------------------------------------------------------------------------------------------------------------------------- | -------------------- | ------- | ------------------------------------------------------------------ | | **Best overall**[Sandisk 4TB Extreme Portable SSD](https://www.amazon.com/dp/B0GMX1JSGL?tag=a9droid-20) | Up to 2000MB/s claim | 1.6 oz | [Check Price](https://www.amazon.com/dp/B0GMX1JSGL?tag=a9droid-20) | | **Best premium**[Samsung T9 Portable SSD 4TB](https://www.amazon.com/dp/B0CHFSZX9W?tag=a9droid-20) | Up to 2000MB/s claim | 4.32 oz | [Check Price](https://www.amazon.com/dp/B0CHFSZX9W?tag=a9droid-20) | | **Most versatile**[Samsung T7 Portable SSD 4TB Titan Gray](https://www.amazon.com/dp/B0CX9BV341?tag=a9droid-20) | Up to 1050MB/s claim | 3.2 oz | [Check Price](https://www.amazon.com/dp/B0CX9BV341?tag=a9droid-20) | | **Best lightweight**[SSK Portable SSD 4TB External Solid State Hard Drive USB C](https://www.amazon.com/dp/B0FJLKWXPK?tag=a9droid-20) | Up to 1050MB/s claim | 1.29 oz | [Check Price](https://www.amazon.com/dp/B0FJLKWXPK?tag=a9droid-20) | | **Best for families**[Crucial X8 4TB Portable SSD](https://www.amazon.com/dp/B0B787PNL7?tag=a9droid-20) | Up to 1050MB/s claim | 3.42 oz | [Check Price](https://www.amazon.com/dp/B0B787PNL7?tag=a9droid-20) | | **Best upgrade**[Seagate Portable 4TB External Hard Drive HDD](https://www.amazon.com/dp/B07CRGSR16?tag=a9droid-20) | USB 3.0 hard disk | 0.57 lb | [Check Price](https://www.amazon.com/dp/B07CRGSR16?tag=a9droid-20) | | **Best budget pick**[WD 4TB My Passport](https://www.amazon.com/dp/B07VTW2LPX?tag=a9droid-20) | USB 3.1 hard disk | 7.41 oz | [Check Price](https://www.amazon.com/dp/B07VTW2LPX?tag=a9droid-20) | ## How I screened this 4TB field down to seven I started from one fixed constraint: 4TB of capacity in a body you can carry. Every listing here states 4TB, so capacity did not separate anything. What separated them was the published transfer figure, the weight, the physical footprint and the stated warranty. Then I lined up the numbers side by side. Four claims land at 1050MB/s or better. Two listings quote a USB generation and no speed at all, which is the tell for a mechanical drive. Screening order: 1. **Capacity confirmed at 4TB.** All seven pass. 2. **Published speed claim.** Five state a figure. Two do not. 3. **Weight and footprint.** From 1.29 oz up to 7.41 oz, a spread of more than five times. 4. **Warranty on the listing.** Two state five years, four state three, one states one. 5. **Distinct role in the set.** No two picks serve the same buyer. Nothing here was cut for being cheap. The two hard disks earned places because 4TB of archive space at entry money is a real answer to a real question, as long as you know what you're buying. Note that the keyword says SSD, and two of these seven are not. ## Two of these are not solid state at all This is the single most useful thing to understand before you spend anything. The Seagate Portable 4TB External Hard Drive HDD and the WD 4TB My Passport are hard disk drives. They spin. The listings say so in the product names, and neither one publishes a MB/s figure. That changes three things. Speed drops sharply against any SSD in this group. Weight climbs: the WD is 7.41 oz and the Seagate is 0.57 lb, against 1.6 oz for the SanDisk. And moving parts are moving parts, so a drop while the platters are spinning is a different kind of event than a drop onto a solid-state drive. They are still the cheapest way to hold 4TB. If the job is a nightly backup that lives on a desk, that trade is fine. If the job is editing a timeline off the drive at a coffee shop, it is not. ## 1\. Sandisk 4TB Extreme Portable SSD — Best overall **The fastest published claim in this set arrives in the lightest solid-state body, which is why it wins.** [![SanDisk 4TB Extreme Portable SSD in black with carabiner loop — a 1.6 oz shell holding the set's top 2000MB/s claim](https://m.media-amazon.com/images/I/41UpTn5oveL._SL500_.jpg)](https://www.amazon.com/dp/B0GMX1JSGL?tag=a9droid-20) **Best for:** creators offloading 4K footage between shoots **Skip it if:** you need a drive with years of field history behind it Two drives here claim up to 2000MB/s. Only one of them weighs 1.6 oz. The SanDisk measures 0.39 x 3.35 x 2 in, which is thinner than the T9 and lighter than every other SSD here except the SSK. SanDisk says the drive moves 1,000 high-res photos in under 60 seconds and describes it as nearly twice as fast as the previous generation. The protection story is the other half of the case. The listing states an IP65 rating and up to 3m drop protection, along with 256-bit AES encryption with password support. IP65 covers dust and spray, so a splash on a shoot is not a crisis. No other pick in this group publishes an ingress rating at all. Warranty is a 5-year Limited Manufacturer Warranty, matching the T9 and beating the three-year terms on four of the others. The model is SDSSDE70-4T00-G25, listed as a 2026 release. That release date is also the caveat. This is the newest drive in the set by a wide margin, so it has the least time in the field behind it. Only two sellers list it, which narrows your options if one of them is out. **Pros:** - Highest published speed claim in this set - Lightest solid-state pick at 1.6 oz - Only pick with a stated IP65 rating - 3m drop protection claim plus 256-bit AES - Five-year warranty, matched only by the T9 **Cons:** - Newest listing here, so the least field history - Second-most expensive pick in this group - Only two sellers list it - Speed figure is a manufacturer claim, not a standardised measurement [Check Price on Amazon](https://www.amazon.com/dp/B0GMX1JSGL?tag=a9droid-20) ## 2\. Samsung T9 Portable SSD 4TB — Best premium **Samsung builds the heat management into this one, which is what you want for long sustained writes.** [![Samsung T9 4TB portable SSD with textured black casing — thicker at 0.55 in to house its thermal solution](https://m.media-amazon.com/images/I/41JHNVamFwL._SL500_.jpg)](https://www.amazon.com/dp/B0CHFSZX9W?tag=a9droid-20) **Best for:** long sustained writes on a desk or cart **Skip it if:** pocket bulk and weight matter more than heat control The T9 quotes sustained read and write speeds of up to 2,000MB/s over USB 3.2 Gen 2x2, and Samsung's own copy leans on the word sustained rather than peak. The listing describes a Dynamic Thermal Guard that controls heat to keep the drive at ideal temperatures under heavy load. That is the distinguishing pitch here, and no other drive in this set publishes a named thermal feature. Physically it's the bulkiest SSD of the five, at 0.55 x 3.46 x 2.36 in and 4.32 oz. That's nearly three times the SanDisk's weight. Some of that thickness is the cooling design, so it's a deliberate trade rather than sloppiness. Samsung also lists Magician Software for firmware updates, extra encryption and drive health monitoring. If you like being able to check a drive's status rather than guessing, that's worth something. Compatibility is described as covering desktops, cameras and consoles. Warranty runs 5 Year Limited Warranty on model MU-PG4T0B, a 2023 release, so it has more time behind it than the SanDisk. **Pros:** - Sustained 2,000MB/s claim, not just a peak figure - Only pick with a named thermal management feature - Five-year warranty term - Drive health and firmware software included - Stated console and camera compatibility **Cons:** - Most expensive pick in this group - Heaviest SSD here at 4.32 oz - Thickest solid-state body at 0.55 in - No published ingress or drop rating on the listing [Check Price on Amazon](https://www.amazon.com/dp/B0CHFSZX9W?tag=a9droid-20) ## 3\. Samsung T7 Portable SSD 4TB Titan Gray — Most versatile **The T7 is the middle path: half the T9's speed claim, a slimmer body, and the broadest device list in the set.** [![Samsung T7 4TB in Titan Gray — 0.31 in thick, the slimmest profile among the solid-state picks](https://m.media-amazon.com/images/I/31LdvAbumfL._SL500_.jpg)](https://www.amazon.com/dp/B0CX9BV341?tag=a9droid-20) **Best for:** one drive shared across a phone, a camera and a laptop **Skip it if:** you want the longest warranty in this group At 0.31 x 3.34 x 2.24 in, the T7 is the slimmest solid-state pick here, thinner than even the SanDisk. Weight is 3.2 oz. Samsung quotes read and write speeds up to 1,050 and 1,000 MB/s from PCIe NVMe internals over USB 3.2 Gen 2. Versatility is the reason it sits at number three. The listing names PC and mobile phone compatibility, and specifically calls out 4K 60fps recording directly to the drive, including iPhone 15 ProRes 4K at 60fps. That combination of a phone-friendly profile and camera capture support makes it the drive to buy if it has to do several jobs across several devices. Against the T9, you give up roughly half the published throughput and two years of warranty coverage. You get a thinner, lighter drive at a lower price position. For anyone whose files are large but whose transfers are short, that's a sensible swap. Model MU-PC4T0T/AM, listed as a 2024 release, with a 3 Year Limited Warranty and Titan Gray as the colour. **Pros:** - Slimmest solid-state body here at 0.31 in - Stated 4K 60fps direct recording support - Named phone and camera compatibility - Lighter than both the T9 and the Crucial X8 **Cons:** - Half the speed claim of the top two picks - Three-year warranty against five on the leaders - No published drop or water rating - No named thermal feature, unlike its own T9 sibling [Check Price on Amazon](https://www.amazon.com/dp/B0CX9BV341?tag=a9droid-20) ## 4\. SSK Portable SSD 4TB External Solid State Hard Drive USB C — Best lightweight **Nothing else here comes close on weight: 1.29 oz in a 0.5 x 2.6 x 1.5 in shell.** [![SSK 4TB portable SSD in grey, palm-sized — at 1.29 oz it is the lightest drive in this comparison](https://m.media-amazon.com/images/I/31BnwRqcu6L._SL500_.jpg)](https://www.amazon.com/dp/B0FJLKWXPK?tag=a9droid-20) **Best for:** iPhone ProRes capture rigs where every ounce counts **Skip it if:** you want a brand with a long storage track record The SSK is smaller in every dimension than any other drive in this set. Its longest edge is 2.6 in, against 3.34 in for the T7 and 4.61 in for the Seagate. On a gimbal or clipped to a phone cage, that footprint is the whole argument. SSK quotes reads up to 1050MB/s and writes up to 1000MB/s via USB 3.2 Gen2, putting it level with the T7 and the Crucial on paper. The listing says both USB-C and USB-A cables are included, which is worth noting because a drive you can't plug into an older laptop is a drive you carry for nothing. It also claims direct 4K60Hz ProRes HDR capture support and lists S.M.A.R.T. and TRIM for maintaining consistent write speeds. One honest touch on the listing: it explains that 4TB may display as 3725GB on Windows and 4TB on macOS. That is the same arithmetic every drive here is subject to, and SSK is the only brand in the set that says so out loud. Model SD500/4TB, with a 3 Years warranty and grey as the colour. Only one seller lists it. **Pros:** - Lightest drive in the set at 1.29 oz - Smallest footprint at 0.5 x 2.6 x 1.5 in - Both USB-C and USB-A cables stated as included - Claimed 4K60Hz ProRes HDR capture support **Cons:** - Least established brand name in this group - No published drop or ingress rating - Only one seller lists it - No stated release year on the listing [Check Price on Amazon](https://www.amazon.com/dp/B0FJLKWXPK?tag=a9droid-20) ## 5\. Crucial X8 4TB Portable SSD — Best for families **The 7.5-foot drop-proof claim and anodized aluminum core make this the one to hand to someone else.** [![Crucial X8 4TB with ridged anodized aluminum body — the shell behind its 7.5-foot drop-proof claim](https://m.media-amazon.com/images/I/21RxiO7PDhL._SL500_.jpg)](https://www.amazon.com/dp/B0B787PNL7?tag=a9droid-20) **Best for:** a shared household backup drive that gets knocked around **Skip it if:** you need the fastest published read speed here Crucial states read speeds up to 1050 MB/s, matching the T7 and the SSK. Where the X8 pulls ahead is the durability copy: an anodized aluminum core, drop proof up to 7.5 feet, plus extreme-temperature, shock and vibration resistance. That 7.5-foot figure is the highest drop claim in this set, above the SanDisk's stated 3m protection only in the sense that it's the more specific number on a metal-cored body. Compatibility is unusually broad on the listing: Windows, Mac, iPad Pro, Chromebook, Android, Linux, PS4 and Xbox One, with USB-C 3.1 Gen2 and USB-A connectors both named. For a drive that has to work with whatever device someone in the house grabs, that list matters more than a speed figure. Weight is 3.42 oz in a 2.09 x 4.33 x 0.45 in body, so it's the longest of the SSDs here. Warranty is a 3-year limited warranty on model CT4000X8SSD9, listed as a 2022 release, and Crucial notes it's backed by Micron. The trade-off is age and price visibility. It's the oldest SSD in this set, only one seller lists it, and the listing publishes no price position, so you're comparing on specification alone. **Pros:** - Highest stated drop figure here at 7.5 feet - Anodized aluminum core, shock and vibration resistant - Widest named device compatibility list in the set - Both USB-C and USB-A connectors specified **Cons:** - Oldest solid-state pick, a 2022 release - Longest SSD body at 4.33 in - Only one seller lists it - Speed claim trails the top two by roughly half [Check Price on Amazon](https://www.amazon.com/dp/B0B787PNL7?tag=a9droid-20) ## 6\. Seagate Portable 4TB External Hard Drive HDD — Best upgrade **A plug-and-play 4TB archive drive with no software to install, as long as you accept spinning platters.** [![Seagate Portable 4TB external hard drive, slim black case — 0.58 in thick despite housing a mechanical disk](https://m.media-amazon.com/images/I/21Y2T3kG97L._SL500_.jpg)](https://www.amazon.com/dp/B07CRGSR16?tag=a9droid-20) **Best for:** bulk archive storage for console libraries and old projects **Skip it if:** you edit directly off the drive This is a hard disk, not an SSD, and the listing is upfront about it. Seagate quotes USB 3.0 and no MB/s figure anywhere. What you get instead is 4TB at the second-cheapest position in this group, with automatic recognition on connection and no software required. The listing names PC, Mac, Xbox and PlayStation, so it's an easy answer for a console library that has outgrown internal storage. An 18 inch USB 3.0 cable is included, which is short, so plan for where the drive will sit. Seagate also mentions a 1-year Rescue Service alongside the drive. Weight is 0.57 lb in a 0.58 x 4.61 x 3.15 in body. That's the largest footprint here and roughly five and a half times the SSK's mass. The warranty is 1 Year Limited, the shortest term of all seven picks by two years. Model STGX4000400, listed as a 2023 release. Treat this as capacity per dollar rather than performance, and it makes sense. Treat it as a scratch disk for video work and you'll be waiting. **Pros:** - Second-cheapest route to 4TB in this set - No setup software needed, automatic recognition - Named Xbox and PlayStation compatibility - Includes a 1-year Rescue Service **Cons:** - Mechanical hard disk, not solid state - Shortest warranty here at one year - Largest footprint in the set at 4.61 in long - Included cable is only 18 inches - No published transfer speed figure [Check Price on Amazon](https://www.amazon.com/dp/B07CRGSR16?tag=a9droid-20) ## 7\. WD 4TB My Passport — Best budget pick **The cheapest 4TB here, with ransomware defence software and hardware encryption to justify its place.** [![WD My Passport 4TB in black with ribbed lid — the heaviest pick at 7.41 oz because it houses a spinning disk](https://m.media-amazon.com/images/I/31s7w1SNWDL._SL500_.jpg)](https://www.amazon.com/dp/B07VTW2LPX?tag=a9droid-20) **Best for:** set-and-forget backups with password protection **Skip it if:** you carry it daily or need SSD speed My Passport is the cheapest of the seven and, like the Seagate, a spinning hard drive rather than a solid-state one. WD lists USB 3.1/USB 3.0 compatibility and no transfer figure. The security package is what sets it apart at this price position. WD states included device management software with defence against ransomware, plus password protection and hardware encryption. Among the two mechanical drives here, only this one publishes an encryption claim, and only the SanDisk matches it among the SSDs. Then the physical reality. At 7.41 oz it's the heaviest pick in this set, and 0.75 x 4.22 x 2.95 in makes it the thickest. Compare that to 1.29 oz and 0.5 in for the SSK. This drive lives in a bag, not a jacket pocket, and it should live on a desk when it's plugged in. Warranty is a 3-year manufacturer's limited warranty on model WDBPKJ0040BBK-WESN, a 2019 release, so it's the oldest listing in the group. The trade you're making is straightforward: lowest cost and real backup software, in exchange for speed, weight and modern build. **Pros:** - Cheapest 4TB pick in this comparison - Ransomware defence software included - Hardware encryption with password protection - Three-year warranty, longer than the Seagate's **Cons:** - Mechanical hard disk, not solid state - Heaviest and thickest drive here - Oldest listing in the set, from 2019 - No published transfer speed figure - Only one seller lists it [Check Price on Amazon](https://www.amazon.com/dp/B07VTW2LPX?tag=a9droid-20) ## What actually decides a portable 4TB external SSD? Most guides to the best portable 4TB external SSD compare capacity. Every drive here is 4TB, so capacity decides nothing. The published speed claim is the real dividing line, and it splits this field into three clean tiers. - **The 2000MB/s tier.** SanDisk and the Samsung T9\. Both claim up to 2000MB/s and both carry five-year warranties. - **The 1050MB/s tier.** Samsung T7, SSK and Crucial X8\. All three state 1050MB/s reads, and all three carry three-year warranties. - **The no-figure tier.** Seagate and WD, both mechanical, both quoting only a USB generation. Notice how neatly warranty length tracks the speed tier. That's not coincidence: the manufacturers with the most confident performance claims are the ones backing them longest. The second criterion is what you do with the drive while it's working. A short burst transfer at the end of a shoot rewards raw peak speed. An hour of continuous writing rewards heat control, which is precisely the argument the T9 makes. Match the criterion to the job and the choice usually makes itself. ## How much does weight really matter? More than most spec sheets suggest, and here's why. The lightest pick weighs 1.29 oz and the heaviest weighs 7.41 oz. That's a nearly six-fold spread across drives holding identical capacity. If the drive lives in a bag, ignore it. If the drive hangs off a camera cage, dangles from a phone during ProRes capture, or gets clipped to a strap, weight becomes leverage on your USB port. A 7.41 oz drive swinging from a USB-C connector is a mechanical stress the connector was not designed for. The spread in this set, lightest to heaviest: 1. SSK, 1.29 oz 2. SanDisk Extreme, 1.6 oz 3. Samsung T7, 3.2 oz 4. Crucial X8, 3.42 oz 5. Samsung T9, 4.32 oz 6. Seagate Portable, 0.57 lb 7. WD My Passport, 7.41 oz Footprint matters alongside mass. The SSK's longest edge is 2.6 in and the Seagate's is 4.61 in, which is the difference between a drive that vanishes into a pocket and one that needs its own slot. ## What does the 4TB label leave out? Three things, none of them printed prominently on any box. **Formatted capacity.** Your operating system counts gigabytes differently than the drive maker does. The SSK listing spells it out: 4TB may show as 3725GB on Windows and 4TB on macOS. Seagate says only that available capacity may vary. Every drive here is subject to the same arithmetic, so budget for a few percent less usable space than the label promises. **What plugs into what.** Crucial names USB-C 3.1 Gen2 and USB-A connectors. SSK states both cable types are included. Seagate specifies an 18 inch USB 3.0 cable. The other listings are quieter, and a drive whose supplied cable doesn't match your laptop is a drive you'll be buying an adapter for. **Whether it's solid state.** The keyword says SSD, and two of these seven are mechanical hard drives. The product names say so, but that word sits between a brand and a capacity where it's easy to skim past. Check for a published MB/s figure. Its absence tells you what you're holding. ## The verdict Three tiers, three answers. At the entry position, the WD 4TB My Passport is the cheapest way to own 4TB, and its ransomware defence software plus hardware encryption make it a genuinely competent backup drive. It is a spinning disk, it weighs 7.41 oz, and it belongs on a desk. The Seagate Portable sits just above it with plug-and-play simplicity and console support, though its 1 Year Limited warranty is the weakest term here. In the middle, the Samsung T7 Portable SSD 4TB is the best all-rounder. A 1,050MB/s claim, the slimmest solid-state body at 0.31 in, and stated support for 4K 60fps direct recording from cameras and phones. The Crucial X8 is the tougher alternative if the drive gets shared and dropped, given its 7.5-foot drop claim and aluminum core, while the SSK is the one to take if 1.29 oz on a phone rig is what you're solving for. At the top, the SanDisk 4TB Extreme Portable SSD wins outright. Up to 2000MB/s, 1.6 oz, IP65, 3m drop protection and a five-year term. The Samsung T9 matches its speed claim and its warranty, and beats it on one point: Dynamic Thermal Guard, for sustained writes rather than bursts. The cutoff is transfer length. Short offloads go to the SanDisk. Hour-long dumps go to the T9. ## FAQ ### Is a portable 4TB external SSD worth it over a hard drive? A portable 4TB external SSD is worth the premium if you work off the drive rather than just storing on it. The SSDs here publish 1050MB/s or 2000MB/s read claims; the WD and Seagate publish no speed figure at all. You also drop from 7.41 oz to as little as 1.29 oz. For nightly backups that never leave a desk, the mechanical drives do the job. ### What is the cheapest way to get 4TB of portable storage? The cheapest way to get 4TB here is the WD 4TB My Passport, the lowest-priced pick in this group. It's a mechanical hard drive weighing 7.41 oz, with a 3-year manufacturer's limited warranty, ransomware defence software and hardware encryption. The Seagate Portable sits just above it and needs no setup software. Neither publishes a transfer speed figure, so treat both as capacity rather than performance buys. ### SanDisk Extreme or Samsung T9: which should I buy? Between the SanDisk Extreme and Samsung T9, both claim up to 2000MB/s and both carry five-year warranties. The SanDisk weighs 1.6 oz and adds an IP65 rating with 3m drop protection. The T9 weighs 4.32 oz and adds Dynamic Thermal Guard for heat control during sustained writes. Choose the SanDisk for pocket portability and field protection, the T9 for long continuous transfers. ### Will these drives work with an iPhone or a games console? These drives work with phones and consoles according to their listings, but coverage varies. The Samsung T7 names iPhone 15 ProRes 4K at 60fps recording. SSK claims 4K60Hz ProRes HDR capture. Crucial names PS4 and Xbox One, plus iPad Pro and Android. Seagate names Xbox and PlayStation. Check your device's connector, since only Crucial and SSK explicitly list both USB-C and USB-A. ### Why does my 4TB drive show less than 4TB of space? Your 4TB drive shows less space because operating systems and manufacturers count storage units differently. SSK's listing states the figure directly: 4TB may display as 3725GB on Windows but 4TB on macOS. Seagate notes that available capacity may vary. This applies to every drive in this set, solid state or mechanical, so expect slightly less usable room than the label suggests. Start with what you'll actually be doing when the drive is plugged in. If it's a nightly backup on a desk, the WD My Passport holds 4TB for less than anything else here and encrypts it. If it's a shared household drive, the Crucial X8's aluminum core and 7.5-foot drop claim earn their keep. And if you're offloading cards between shoots, the SanDisk Extreme puts the set's fastest claim into a 1.6 oz shell with an IP65 rating, which is the combination nothing else in this group matches. Pick the tier that matches the job, not the biggest number. *Last updated: October 7, 2026\. Product availability re-checked.* *This page contains affiliate links. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.*