> ## 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 Power Supply for 3060 by Wattage and Rail - URL: https://a9droid.com/best-power-supply-3060/ - Published: 2026-09-07T06:29:25.000Z - Updated: 2026-09-07T09:49:14.000Z - Description: A 3060 build wants headroom, a clean 12V rail, and a warranty that outlives the card. Seven picks compared on wattage, form factor, and what the listings actually promise. - Author: Samuel Harris - Tags: Computers & Networking, PC Components, Power Supplies The best power supply for 3060 builds in this set is the **MSI MAG A850GL PCIE5**, an 850W 80 Plus Gold unit with a 10-year limited warranty and native 12V-2x6 wiring. If your "3060" is a Dell Optiplex 3060 desktop rather than an RTX 3060 build, the **QZLHCHY H500EPM-00 500W** drops straight into the MT chassis and carries the correct 8-pin, 6-pin, 6-pin, 4-pin, 4-pin harness. Wattage, form factor, and warranty are what actually decide this. In this guide 1. [Best power supply for 3060 at a glance](#best-power-supply-for-3060-at-a-glance) 2. [How I cut the list from dozens to seven](#how-i-cut-the-list-from-dozens-to-seven) 3. [1\. MSI MAG A850GL PCIE5 — Best overall](#1-msi-mag-a850gl-pcie5-%E2%80%94-best-overall) 4. [2\. Thermaltake Toughpower GT 850W — Runner-up](#2-thermaltake-toughpower-gt-850w-%E2%80%94-runner-up) 5. [3\. Thermaltake Smart 500W 80+ White — Best for pros](#3-thermaltake-smart-500w-80-white-%E2%80%94-best-for-pros) 6. [4\. QZLHCHY H500EPM-00 500W — Best OEM replacement](#4-qzlhchy-h500epm-00-500w-%E2%80%94-best-oem-replacement) 7. [5\. LXun H260EBM-00 260W — Best small-form-factor swap](#5-lxun-h260ebm-00-260w-%E2%80%94-best-small-form-factor-swap) 8. [6\. Generic 4FHYW 200W — Best minimal setup](#6-generic-4fhyw-200w-%E2%80%94-best-minimal-setup) 9. [7\. Verful 90W Optiplex Micro adapter — Best budget pick](#7-verful-90w-optiplex-micro-adapter-%E2%80%94-best-budget-pick) 10. [OEM replacement or full ATX build: which are you?](#oem-replacement-or-full-atx-build-which-are-you) 11. [How much wattage does a 3060 actually want?](#how-much-wattage-does-a-3060-actually-want) 12. [The 12V-2x6 and ATX 3.1 question](#the-12v-2x6-and-atx-31-question) 13. [What the listings do not tell you about a 3060 PSU](#what-the-listings-do-not-tell-you-about-a-3060-psu) 14. [The verdict](#the-verdict) 15. [FAQ](#faq) ## Best power supply for 3060 at a glance | Pick | Wattage | Warranty | Price | | ------------------------------------------------------------------------------------------------------------ | ------- | --------- | ------------------------------------------------------------------ | | **Best overall**[MSI MAG A850GL PCIE5](https://www.amazon.com/dp/B0CB9MSJ5N?tag=a9droid-20) | 850W | 10 years | [Check Price](https://www.amazon.com/dp/B0CB9MSJ5N?tag=a9droid-20) | | **Runner-up**[Thermaltake Toughpower GT 850W](https://www.amazon.com/dp/B0DJ6DGHCP?tag=a9droid-20) | 850W | 5 years | [Check Price](https://www.amazon.com/dp/B0DJ6DGHCP?tag=a9droid-20) | | **Best for pros**[Thermaltake Smart 500W 80+ White](https://www.amazon.com/dp/B014W3EM2W?tag=a9droid-20) | 500W | 5 years | [Check Price](https://www.amazon.com/dp/B014W3EM2W?tag=a9droid-20) | | **Best OEM replacement**[QZLHCHY H500EPM-00 500W](https://www.amazon.com/dp/B0GRFWCP8W?tag=a9droid-20) | 500W | 1 year | [Check Price](https://www.amazon.com/dp/B0GRFWCP8W?tag=a9droid-20) | | **Best SFF swap**[LXun H260EBM-00 260W](https://www.amazon.com/dp/B0D17Y7N5B?tag=a9droid-20) | 260W | 1 year | [Check Price](https://www.amazon.com/dp/B0D17Y7N5B?tag=a9droid-20) | | **Best minimal setup**[Generic 4FHYW 200W](https://www.amazon.com/dp/B0B24V75HT?tag=a9droid-20) | 200W | 90 days | [Check Price](https://www.amazon.com/dp/B0B24V75HT?tag=a9droid-20) | | **Best budget pick**[Verful 90W Optiplex Micro adapter](https://www.amazon.com/dp/B0CLKD3N2G?tag=a9droid-20) | 90W | 12 months | [Check Price](https://www.amazon.com/dp/B0CLKD3N2G?tag=a9droid-20) | ## How I cut the list from dozens to seven The keyword "3060" is ambiguous. It hits two very different shoppers: one building an RTX 3060 gaming rig from scratch, and one whose Dell Optiplex 3060 has a dead power brick. I built the shortlist to cover both, because Amazon's search results already do. **Criteria and how I weighted them:** 1. **Form-factor match, weighted heaviest.** A 200W Dell-shaped replacement is useless in a mid-tower, and a 12-inch ATX unit will not fit an Optiplex 3060 MT bay. Wrong shape means nothing else matters. 2. **Wattage headroom for the actual load.** An RTX 3060 build wants meaningful headroom above the card's draw. An Optiplex 3060 with integrated graphics wants the exact wattage the OEM shipped. 3. **Warranty length.** This is the single hardest thing to fake on a listing, and it correlates with how confident the maker is. 4. **PCIe wiring for modern GPUs.** ATX 3.1 with a native 12V-2x6 connector is a meaningful advantage if you plan to keep the PSU across two builds. Anything without a published warranty was cut. Anything whose listing did not name a specific model number was cut. That took the field down to seven picks across three form factors and four wattage tiers. ## 1\. MSI MAG A850GL PCIE5 — Best overall **An 850W fully modular unit with native 12V-2x6 wiring and a 10-year warranty makes this the safest long-horizon buy for an ATX 3060 build.** [![MSI MAG A850GL PCIE5 fully modular ATX power supply — the 10-year warranty and native 12V-2x6 cable that put it ahead of the set](https://m.media-amazon.com/images/I/41gfaoqyuML._SL500_.jpg)](https://www.amazon.com/dp/B0CB9MSJ5N?tag=a9droid-20) **Best for:** a full ATX 3060 build that wants headroom and a long warranty **Skip it if:** your case is a Dell Optiplex chassis The MSI MAG A850GL PCIE5 is the only unit here rated for 850W with ATX 3.1 and PCIe 5.1 compliance, and MSI publishes a 10-year limited manufacturer warranty on it. That warranty is the standout figure of the whole set. The next-longest is five years. Body dimensions are 4.92 x 12 x 8.75 in, which is a standard ATX footprint and needs a case that will take a 12-inch PSU. MSI describes the design as fully modular with a native dual-colour 12V-2x6 cable. That last part matters for a 3060 today less than it will for a bigger card later, and the point of a 10-year warranty is that you keep the PSU across at least two GPU upgrades. On raw wattage this pick sits well above what an RTX 3060 needs on its own, which is the trade you make for headroom. Against the Thermaltake Toughpower GT it wins on warranty length; against the Thermaltake Smart 500W it wins on wattage and modularity, but it is the most expensive pick here. **Pros:** - 850W, the highest wattage in this set - 10-year warranty, longest of any pick - ATX 3.1 and PCIe 5.1 rated by MSI - Fully modular cabling - Native 12V-2x6 connector **Cons:** - The most expensive pick here - 12-inch length rules out compact cases - Overkill wattage for a 3060 alone [Check Price on Amazon](https://www.amazon.com/dp/B0CB9MSJ5N?tag=a9droid-20) ## 2\. Thermaltake Toughpower GT 850W — Runner-up **A newer 850W ATX 3.1 unit with a compact 5.5 x 5.9 x 3.4 in body and a five-year warranty, at a lower price band than the MSI.** [![Thermaltake Toughpower GT 850W ATX 3.1 power supply — the compact 5.5-inch depth that fits mid-towers the MSI cannot](https://m.media-amazon.com/images/I/412xfY9QWsL._SL500_.jpg)](https://www.amazon.com/dp/B0DJ6DGHCP?tag=a9droid-20) **Best for:** a fresh ATX build that wants ATX 3.1 without the longest warranty **Skip it if:** you need the deepest warranty in the set The Toughpower GT matches the MSI on wattage and on the ATX 3.1 spec, and Thermaltake ships it with a native 450W PCIe 5.1 connector for modern GPUs. Body dimensions are 5.5 x 5.9 x 3.4 in per the listing, noticeably shorter than the MSI's 12-inch length, which opens up cases that would not swallow the top pick. Released in 2024, so it is the newest ATX unit in the set. Thermaltake claims 80 Plus Gold efficiency of up to 90%, a Smart Zero Fan mode that idles the fan under light load, and a single high-amperage +12V rail. Warranty runs five years, half the MSI's coverage but standard for this tier. The reason this is the runner-up rather than the winner is simple: warranty length is the one specification the maker cannot walk back after the sale, and MSI backs its unit twice as long. For a builder who plans to swap the whole system inside five years, the Toughpower is the better-shaped, better-priced choice. **Pros:** - 850W with ATX 3.1 and PCIe 5.1 - Compact 5.5 x 5.9 x 3.4 in body - Native 450W PCIe 5.1 connector - Fully modular flat cables - Zero-fan mode under low load **Cons:** - Half the warranty length of the MSI - Sits in the premium price band - Fanless mode not user-configurable per the listing [Check Price on Amazon](https://www.amazon.com/dp/B0DJ6DGHCP?tag=a9droid-20) ## 3\. Thermaltake Smart 500W 80+ White — Best for pros **A 500W 80 Plus White ATX unit with a five-year warranty, aimed at the builder who has done the math and knows a 3060 does not need 850W.** [![Thermaltake Smart 500W 80 Plus White ATX power supply — the two PCIe 6+2 connectors that cover a 3060 without upselling to 850W](https://m.media-amazon.com/images/I/41nZ54QgVXL._SL500_.jpg)](https://www.amazon.com/dp/B014W3EM2W?tag=a9droid-20) **Best for:** a budget ATX 3060 build with modest peripherals **Skip it if:** you plan to add a second drive-heavy workload later An RTX 3060 does not need an 850W PSU. It needs headroom above its own draw plus the rest of the system, and 500W of clean, protected delivery is the honest floor. The Thermaltake Smart 500W is 80 Plus White certified with two PCIe 6+2 pin connectors per the listing, a 120mm cooling fan, and Thermaltake's five-year warranty. Body dimensions are 7 x 8.9 x 4 in and weight is 3.8 lb. Thermaltake calls out active PFC, over-power, over-voltage, and short-circuit protections, plus a stated MTBF of 100,000 hours. This is the best-for-pros label because a builder who reads spec sheets will pick this before an 850W unit for a single-GPU 3060 rig. The trade is real: no ATX 3.1, no modular cables, and only 80 Plus White efficiency where the two 850W picks are Gold. If you ever move to a card that draws more than a 3060, you are buying another PSU. **Pros:** - Five-year warranty on an entry-band unit - Two PCIe 6+2 pin connectors - Full ATX 12V 2.31 compliance - Active PFC and standard protections - 120mm quiet fan per the listing **Cons:** - Not modular - 80 Plus White is the lowest efficiency tier here - No ATX 3.1 or 12V-2x6 wiring [Check Price on Amazon](https://www.amazon.com/dp/B014W3EM2W?tag=a9droid-20) ## 4\. QZLHCHY H500EPM-00 500W — Best OEM replacement **A direct 500W replacement for the Dell Optiplex 3060 MT and its siblings, matching the D500EPM-00 and DPS-500AB-49A part numbers.** [![QZLHCHY H500EPM-00 500W Dell Optiplex replacement power supply — the exact 2.4 x 8.6 x 3.14 in footprint an Optiplex 3060 MT needs](https://m.media-amazon.com/images/I/41RJsMdExUL._SL500_.jpg)](https://www.amazon.com/dp/B0GRFWCP8W?tag=a9droid-20) **Best for:** a Dell Optiplex 3060 MT that needs its 500W brick swapped **Skip it if:** you have a full-tower ATX case If your "3060" is a Dell Optiplex 3060 mini-tower, this is the pick. QZLHCHY lists compatibility with Optiplex 7080MT, 7060MT, 3050, 3060, 3650, 3670, 3671, 5090, 260, 3681, and XPS 8940MT, and it names the exact original part numbers it replaces: D500EPM-00, DPS-500AB-49A, H500EPM-00, and 05K7J8\. Body dimensions are 2.4 x 8.6 x 3.14 in and weight is 2.09 lb. It is the best power supply for 3060 Optiplex owners because it slots into the same bay the Dell unit came out of. The stated input is 100 to 240V at 7A, with a maximum 500W DC output and a connector layout of 8-pin, 6-pin, 6-pin, 4-pin, 4-pin. Warranty runs one year. Against the LXun 260W unit, this is the correct pick for the MT chassis and the wrong one for the SFF or Micro variants. Against a retail ATX PSU, it is the only one shaped to fit an Optiplex bay without brackets or adapters. **Pros:** - Names the Dell part numbers it replaces - 500W with the correct multi-pin harness - Optiplex MT footprint of 2.4 x 8.6 x 3.14 in - Covers a wide Optiplex model range - Weighs 2.09 lb for easy handling **Cons:** - One-year warranty, the second-shortest here - The most expensive OEM replacement in this set - Only one seller lists it [Check Price on Amazon](https://www.amazon.com/dp/B0GRFWCP8W?tag=a9droid-20) ## 5\. LXun H260EBM-00 260W — Best small-form-factor swap **A 260W replacement sized for the Optiplex 3060 small-form-factor bay, with a 6-pin plus 4-pin harness.** [![LXun H260EBM-00 260W Dell Optiplex SFF replacement power supply — the 1 lb weight and 8.47-inch depth that mark an SFF unit, not an MT one](https://m.media-amazon.com/images/I/31qjjtq-1fL._SL500_.jpg)](https://www.amazon.com/dp/B0D17Y7N5B?tag=a9droid-20) **Best for:** an Optiplex 3060 small-form-factor unit needing a 260W replacement **Skip it if:** you plan to add a discrete GPU The Optiplex 3060 came in three sizes. The mini-tower takes a 500W unit, the SFF takes 260W, and the Micro runs off an external brick. LXun's 260W H260EBM-00 is the SFF-shaped one. It replaces D260E001L, H260EBM-00, L260EBM-00, D260EBM-00, H260AM-00, AC260AM-00, B260EBM-00, and HU260EBM-00 per the listing, plus the H7X3F part number. Body dimensions are 2.36 x 8.47 x 3.15 in and weight is 1 lb. The stated input is 100 to 240V at 4.2A and the DC output tops out at 260W through a 6-pin plus 4-pin connector. That connector count is your biggest constraint: it feeds the motherboard and CPU rails, not a modern PCIe GPU. If you were hoping to add a low-profile RTX 3060 to an Optiplex SFF, this is not the unit for it. LXun lists a one-year manufacturer warranty. Against the QZLHCHY 500W, this is the smaller-chassis sibling; against the 200W Generic, it gives you 60W more headroom for the same shape of bay. **Pros:** - Correct 260W for Optiplex 3060 SFF - Names the H7X3F Dell part number - Compact 8.47-inch depth for SFF bays - Covers a wide Optiplex model list - Includes a one-year warranty **Cons:** - Only 6-pin plus 4-pin, no PCIe power for a GPU - Fewer connectors than the MT-shaped 500W - One-year warranty ties the shortest in this shape class [Check Price on Amazon](https://www.amazon.com/dp/B0D17Y7N5B?tag=a9droid-20) ## 6\. Generic 4FHYW 200W — Best minimal setup **A 200W drop-in for the Optiplex 3060 SFF and Inspiron 3470, priced for a repair rather than an upgrade.** [![Generic 4FHYW 200W Dell Optiplex SFF replacement power supply — the compact drop-in body that matches the CGFJT and 4FHYW part numbers](https://m.media-amazon.com/images/I/31M28xV+phL._SL500_.jpg)](https://www.amazon.com/dp/B0B24V75HT?tag=a9droid-20) **Best for:** an Optiplex 3060 SFF that only needs a 200W drop-in **Skip it if:** you want more than 90 days of warranty coverage Some Optiplex 3060 SFF units shipped with a 200W supply rather than the 260W variant. If yours is one of them, this Generic unit matches the 4FHYW, CGFJT, X61RM, and 8KVYY part numbers, plus the H200EBS-00 and L200AS-00 model codes. The listing is explicit that the item is a replacement part and warns buyers to check the images match before ordering. That warning is worth taking seriously: an Optiplex 3060 with the wrong-shaped brick will not close its lid. Warranty runs 90 days, the shortest in the set by a wide margin. That is the reason this pick is the best minimal setup rather than the best SFF pick outright. If your machine is a light office workload and you want it back up cheaply, 90 days is enough to prove the unit works. If you want the same shape with more headroom and a longer guarantee, the LXun 260W is the better choice for the same chassis. Only one seller lists this unit, so availability may not hold. **Pros:** - Matches four common Optiplex 3060 SFF part numbers - Correct 200W shape for that chassis - Simple drop-in replacement - Clear compatibility list in the listing **Cons:** - 90-day warranty, shortest in the set - No published dimensions or weight - The listing itself notes items are shipped randomly across four part numbers - Only one seller stocks it [Check Price on Amazon](https://www.amazon.com/dp/B0B24V75HT?tag=a9droid-20) ## 7\. Verful 90W Optiplex Micro adapter — Best budget pick **A 90W external brick for the Optiplex 3060 Micro, the only pick here shaped for an MFF machine.** [![Verful 90W AC adapter for Dell Optiplex Micro — the external brick shape that identifies a Micro-form-factor PSU, not an internal unit](https://m.media-amazon.com/images/I/41rRdovas-L._SL500_.jpg)](https://www.amazon.com/dp/B0CLKD3N2G?tag=a9droid-20) **Best for:** an Optiplex 3060 Micro that runs off an external brick **Skip it if:** you have a tower or SFF chassis, not a Micro The Optiplex 3060 Micro is the third form factor Dell shipped under that model number, and it does not use an internal PSU at all. It runs off an external adapter, and Verful's 90W unit covers it along with a long list of other Optiplex Micro machines from the 3000 through the 9020\. Output is 19.5V at 4.62A, and the listing notes it also runs a 65W or 45W load if that is what your machine originally shipped with. Model number is SF-195462, and warranty runs 12 months. This is the cheapest of the seven picks and it is the one buyers choose most often here, per the category ranking data available. It is on the list because "power supply for 3060" honestly does include Optiplex 3060 Micro owners, and none of the six internal PSUs would help them. Against the internal Optiplex replacements, this is the only pick shaped like a laptop brick and the only one you can swap without opening a case. **Pros:** - 12-month warranty on an entry-band unit - Covers 90W, 65W, and 45W Optiplex Micro loads - Named SF-195462 model number - Broad Optiplex Micro compatibility list - No case work needed to fit it **Cons:** - Only useful for the Optiplex Micro chassis - 90W is not near a discrete GPU load - Only one seller lists it [Check Price on Amazon](https://www.amazon.com/dp/B0CLKD3N2G?tag=a9droid-20) ## OEM replacement or full ATX build: which are you? The single question this article turns on is which "3060" you meant. Get this wrong and none of the specs matter, because a beautifully specified ATX PSU will not physically fit an Optiplex chassis, and a Dell-shaped 260W brick will not power an RTX 3060 graphics card. **You want an ATX unit if:** - You are building or upgrading a full-size or mid-tower PC. - Your card is an RTX 3060, RTX 3060 Ti, or similar discrete GPU. - You have PCIe power connectors coming out of your current PSU already. **You want a Dell Optiplex replacement if:** - Your machine is a Dell Optiplex 3060 MT, SFF, or Micro. - You are replacing a failed power brick, not upgrading a GPU. - Your existing PSU has part numbers like H500EPM-00, H260EBM-00, or 4FHYW printed on the label. The best power supply for 3060 gaming builds is one of the two 850W ATX units. The best power supply for 3060 Optiplex machines is the QZLHCHY, LXun, Generic, or Verful, chosen by which chassis you have. Confirm the chassis before you buy. ## How much wattage does a 3060 actually want? For the RTX 3060 graphics card, the honest floor is meaningful headroom above the card and the rest of the system, and a quality 500W unit clears that comfortably for a single-GPU build with modest peripherals. That is why the Thermaltake Smart 500W earns the best-for-pros label rather than a lesser one. It is the wattage a builder who does not want to be upsold reaches for. The two 850W picks are not wrong. They are future-proofing. If you plan to keep the PSU across a GPU upgrade to something meatier than a 3060, 850W with ATX 3.1 and a native 12V-2x6 connector is what you buy once and forget. The MSI's 10-year warranty is the specification that most obviously rewards that plan. For the Optiplex 3060 the wattage question is not open. Dell shipped these with 200W, 260W, 500W, or a 90W external brick depending on chassis, and you match that number. Do not upsize an Optiplex PSU: the harness and the bay will not accept a taller unit, and the motherboard is not expecting more current on the rails it uses. ## The 12V-2x6 and ATX 3.1 question Only two picks here name the ATX 3.1 specification: the MSI MAG A850GL PCIE5 and the Thermaltake Toughpower GT 850W. Both include a native 12V-2x6 connector. Both are 80 Plus Gold and fully modular. The Thermaltake Smart 500W is ATX 12V 2.31 and EPS 12V 2.92 per the listing, which is fine for a 3060 but is not the current ATX 3.x generation. Does a 3060 need ATX 3.1? No. The card predates the specification. Does an ATX 3.1 PSU hurt a 3060 build? Also no, and it protects you against the next GPU you buy. The 12V-2x6 connector is the successor to the 12VHPWR plug that early ATX 3.0 units carried, and it is what modern high-power cards accept natively. Buying an ATX 3.1 unit now is a bet on your next upgrade, not this one. If you are certain the 3060 is the last card this PSU will see, save the money and take the Thermaltake Smart 500W. If you plan to keep the PSU across two builds, the MSI's warranty length makes the case on its own. ## What the listings do not tell you about a 3060 PSU A few things the product pages will not spell out, and that matter more than the headline wattage: 1. **Cable length.** None of the seven listings publish full cable lengths. In a large case, short cables leave the 8-pin CPU connector short of the top of the board. Check your case's PSU-to-CPU run before you commit to a compact unit. 2. **Fan noise under low load.** The Thermaltake Toughpower GT names a Smart Zero Fan mode that idles the fan under light load. None of the others make that claim. If a silent idle matters to you, that is where it lives in this set. 3. **Sleeved versus flat cables.** The Toughpower GT lists low-profile flat black cables. The others do not describe the cable style. Flat cables route more cleanly behind a motherboard tray. 4. **Standby power draw.** No listing publishes it. Assume all seven meet the ATX baseline and no more. 5. **Which seller you are actually buying from.** Only one seller lists four of these seven units. Two-seller listings give you more room if the first shipment arrives dead. None of that overturns the ranking. It is the ground truth the listings leave to you. ## The verdict The best power supply for 3060 ATX builds is the **MSI MAG A850GL PCIE5**. Its 850W rating gives you headroom for a GPU upgrade well beyond a 3060, its 10-year warranty is the longest on this page by five years, and its ATX 3.1 and PCIe 5.1 compliance means the 12V-2x6 connector on your next card plugs in natively. That combination is what makes it the safest single purchase in the set. If your case will not swallow a 12-inch PSU, the **Thermaltake Toughpower GT 850W** is the runner-up, matching the wattage and the ATX 3.1 spec in a 5.5 x 5.9 x 3.4 in body with a five-year warranty. If your build is a single-3060 rig with no upgrade plans, the **Thermaltake Smart 500W** is the honest answer and it costs less. If your "3060" is a Dell Optiplex 3060, buy by chassis. MT owners take the QZLHCHY H500EPM-00 500W. SFF owners take the LXun H260EBM-00 260W, or the Generic 4FHYW 200W if your original was rated for 200W. Micro owners take the Verful 90W adapter. Do not cross-shop these units against each other by wattage. The chassis decides. ## FAQ ### Is a 500W power supply enough for an RTX 3060? A 500W power supply is enough for a single RTX 3060 in a system with modest peripherals, and the Thermaltake Smart 500W in this set is 80 Plus White certified with two PCIe 6+2 pin connectors, active PFC, and a five-year warranty. It is the leanest sensible choice for a build that will not grow into a hungrier GPU later. ### Which power supply is best for a Dell Optiplex 3060 mini-tower? The best power supply for a Dell Optiplex 3060 mini-tower is the QZLHCHY H500EPM-00 500W, which replaces the D500EPM-00, DPS-500AB-49A, and 05K7J8 part numbers Dell shipped in the MT chassis. It measures 2.4 x 8.6 x 3.14 in, weighs 2.09 lb, and ships with the correct 8-pin, 6-pin, 6-pin, 4-pin, 4-pin harness for the Optiplex motherboard. ### MSI MAG A850GL or Thermaltake Toughpower GT 850W? Between MSI MAG A850GL and Thermaltake Toughpower GT, both are 850W, 80 Plus Gold, fully modular, and ATX 3.1 with a native 12V-2x6 connector. MSI publishes a 10-year warranty and Thermaltake publishes five years. The MSI is longer at 12 in versus 5.5 in of depth, so cases decide it for you: tight cases take the Thermaltake, spacious cases and long-hold plans take the MSI. ### Is ATX 3.1 worth it for a 3060 build? ATX 3.1 is worth it for a 3060 build only if you plan to keep the PSU across a future GPU upgrade. The RTX 3060 itself uses a standard 8-pin PCIe connector and does not need the 12V-2x6 plug that ATX 3.1 supplies natively. Both 850W picks here name ATX 3.1 and PCIe 5.1 support; the Thermaltake Smart 500W does not. ### What is the biggest mistake buying a power supply for a 3060? The biggest mistake buying a power supply for a 3060 is confusing the graphics card with the Dell Optiplex 3060 desktop. An ATX unit will not fit an Optiplex chassis, and a 200W or 260W Dell replacement brick cannot feed an RTX 3060 graphics card. Confirm which "3060" you have, then match wattage and form factor, then check the warranty length. Start with the chassis and the card. If it is a full ATX build with an RTX 3060 in it and you plan to keep the PSU past this card, the MSI MAG A850GL PCIE5 is the pick that will still be under warranty when the 3060 has long been retired. If the "3060" on your desk is a Dell Optiplex, open the side panel, read the part number on the existing power supply, and match it to the QZLHCHY, LXun, Generic, or Verful pick that shares the shape. The trap in this category is buying by wattage alone. Fit and warranty are what separate a PSU you install once from a PSU you install twice. *Last updated: September 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.*