# The 6 Best PC Power Supplies on Amazon in 2026 > Best PC power supplies in 2026: 500W to 1000W units from MSI, Corsair, ASUS, be quiet! and Thermaltake, with 80 PLUS Gold ratings and fully modular cables. Guide: https://twelvetabs.com/reviews/best-pc-power-supplies/ · Updated 2026-10-03 · By TwelveTabs · Search it live: https://twelvetabs.com/?q=pc%20power%20supply&guide=best-pc-power-supplies As an Amazon Associate we may earn from qualifying purchases. Our picks are independently researched, written by TwelveTabs AI and never sponsored. Prices and ratings change often: see the guide for today's. ## The top picks - **A 750W fully modular Gold unit with a 10-year warranty:** MSI MAG A750GL PCIE5 750W Power Supply. A 750W fully modular power supply with 80 PLUS Gold certification, ATX 3.1 and PCIe 5.1 support and a 10-year limited warranty. - **A fully modular 850W unit with a low-noise fan curve:** CORSAIR RM850e (2025) 850W Power Supply. An 850W fully modular power supply certified to Intel's ATX 3.1 standard with PCIe 5.1 support, a 120mm rifle-bearing fan on a fan curve set for low noise, and 105°C-rated capacitors. - **A 1000W Gold unit that comes with a 16-pin PCIe cable:** ASUS TUF Gaming 1000W Gold Power Supply. A 1000W power supply with 80 PLUS Gold certification, ATX 3.1 compatibility and a bundled 16-pin PCIe cable that carries up to 600W to PCIe Gen 5.0 graphics cards. - **A 1000W Gold unit whose fan switches off at low load:** be quiet! Pure Power 13 M 1000W Power Supply. A 1000W power supply certified 80 PLUS Gold with efficiency up to 94.4%, ATX 3.1 with a native 12V-2x6 connector and a semi-passive fan that switches off at low load. - **A compact 650W non-modular unit with 80 PLUS Bronze:** MSI MAG A650BN 650W Power Supply. A compact 650W non-modular power supply with 80 PLUS Bronze efficiency, a low-noise fan, active PFC and a DC-DC circuit design. - **A 500W 80 PLUS unit for a low-power build:** Thermaltake Smart 500W Power Supply. A 500W continuous-output power supply with 80 PLUS certification, active PFC and a 120mm quiet fan, with two PCIe 6+2 pin connectors. Our top pick is the **[MSI MAG A750GL](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-1)**, a 750W fully modular power supply with 80 PLUS Gold certification and a 10-year limited warranty. We read 40 Amazon result cards for "pc power supply", compared 10 contenders on their own pages, and kept six. No Wirecutter page is in Google's top 10 for this topic, so there is no expert pick in the table. Building around an older Ryzen chip? See our [AM4 motherboards guide](https://twelvetabs.com/reviews/best-am4-motherboards/). Then one pick for each other job. For a fully modular 850W unit, the **[Corsair RM850e](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-2)**. For a 1000W Gold unit with a 16-pin PCIe cable, the **[ASUS TUF Gaming 1000W](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-3)**. For a 1000W unit whose fan switches off at low load, the **[be quiet! Pure Power 13 M](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-4)**. For a compact 650W non-modular unit, the **[MSI MAG A650BN](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-5)**. For a 500W unit for a low-power build, the **[Thermaltake Smart 500W](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-6)**. ## How to choose a PC power supply Every spec in this guide comes from the Amazon listing, and we make no claim about how a unit holds up in use. Tom's Hardware and Club386 set out what to look at. - **Size the wattage to your parts.** Tom's Hardware says to aim for a unit that runs near 50% load, and that maker calculators rely on thermal design power, which often overestimates what a build needs. Our picks run from 500W to 1000W. - **Check the efficiency rating.** Club386 says higher efficiency means less wasted energy. The [MSI MAG A750GL](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-1), the [ASUS TUF Gaming 1000W](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-3) and the [be quiet! Pure Power 13 M](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-4) list 80 PLUS Gold. The [MSI MAG A650BN](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-5) lists Bronze. The [Thermaltake Smart 500W](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-6) lists the plain 80 PLUS certification, and the [Corsair RM850e](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-2) listing text we read names no rating. - **Choose the cable style.** Tom's Hardware says fully modular units cut cable clutter and improve airflow, and Club386 says modular cabling makes a tidier build. The [MSI MAG A750GL](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-1) and [Corsair RM850e](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-2) list fully modular cabling. The [MSI MAG A650BN](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-5) is non-modular. - **Match the connector to your graphics card.** Tom's Hardware says the ATX 3.1 standard moved from the 12VHPWR connector to 12V-2x6, and Club386 says the newest graphics cards that need 12V-2x6 call for a dedicated cable and socket. The [be quiet! Pure Power 13 M](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-4) lists a native 12V-2x6 connector and the [ASUS TUF Gaming 1000W](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-3) a bundled 16-pin PCIe cable. - **Look at the fan.** Club386 says many modern units have a semi-passive mode where the fan does not spin at low load. The [be quiet! Pure Power 13 M](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-4) lists one. ## Our picks in detail ### 1. MSI MAG A750GL: best 750W fully modular Gold unit **Why it made the list** - Its listing describes 80 PLUS Gold certification and a fully modular design. - It lists ATX 3.1 and PCIe 5.1 support and a 10-year limited warranty. - Amazon's own summary of its reviews lists power quality, cable options, efficiency and build quality as positive. **Drawbacks** - Amazon's own summary lists noise level and compatibility as mixed, with some mentioning rattling noises. - Amazon's own summary lists reliability as mixed, with some reporting a failure within a year. **Watch for this:** MSI sells its other wattages and lines as separate listings with their own ratings, so check the wattage on the page. **Skip it if** you need 1000W. The [ASUS TUF Gaming 1000W](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-3) and the [be quiet! Pure Power 13 M](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-4) list 1000W. ### 2. Corsair RM850e: best fully modular 850W unit **Why it made the list** - Its listing describes fully modular cabling and Intel ATX 3.1 certification with PCIe 5.1 support. - It lists a 120mm rifle-bearing fan on a fan curve set to keep noise down, and 105°C-rated capacitors. - Amazon's own summary of its reviews lists power quality, cable management, noise level and build quality as positive. **Drawbacks** - The listing text we read does not name an 80 PLUS rating. - Amazon's own summary lists durability as mixed, with one reporting it lasting two months. **Watch for this:** Corsair sells the 750W and 1000W units of this line as separate listings with their own ratings, and a white version as another. **Skip it if** you want the efficiency rating stated in the listing. The [MSI MAG A750GL](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-1) lists 80 PLUS Gold. ### 3. ASUS TUF Gaming 1000W: best 1000W Gold unit with a 16-pin cable **Why it made the list** - Its listing describes 80 PLUS Gold certification and ATX 3.1 compatibility. - It lists a bundled 16-pin PCIe cable that can carry up to 600W to PCIe Gen 5.0 graphics cards, and dual ball fan bearings. - Amazon's own summary of its reviews lists power quality, value and power as positive. **Drawbacks** - The listing text we read does not say whether the cables are modular. - Amazon's own summary lists cable management, noise level and quality as mixed, with some saying cables are short. **Watch for this:** the page we read is set to the 1000W size of the TUF Gaming line. **Skip it if** you want fully modular cabling confirmed. The [MSI MAG A750GL](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-1) and [Corsair RM850e](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-2) list it. ### 4. be quiet! Pure Power 13 M: best 1000W unit with a fan that switches off **Why it made the list** - Its listing describes a semi-passive fan that turns off completely at low load. - It lists 80 PLUS Gold with efficiency up to 94.4% and ATX 3.1 with a native 12V-2x6 connector. - Amazon's own summary of its reviews lists noise level, cable management, power capacity and the modular design as positive. **Drawbacks** - Amazon's own summary lists cable length as negative. **Watch for this:** the page's price figure disagreed with the price printed in its size menu, so the table shows no price for this pick. Check the price on Amazon. **Skip it if** you want a lower wattage. The same line comes in an 850W unit as a separate listing. ### 5. MSI MAG A650BN: best compact 650W non-modular unit **Why it made the list** - Its listing describes a compact 650W unit with 80 PLUS Bronze efficiency and a low-noise fan. - It lists a DC-DC circuit design and active PFC. - Amazon's own summary of its reviews lists quiet operation, easy installation and a good appearance as positive, and calls 650W more than enough for the builds mentioned. **Drawbacks** - It is non-modular, so every cable stays attached, per the listing. - Amazon's own summary lists cable management as mixed. **Watch for this:** this model is a separate listing from MSI's Gold units, with its own ratings. **Skip it if** you want modular cables. The [MSI MAG A750GL](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-1) lists fully modular cabling. ### 6. Thermaltake Smart 500W: best 500W unit for a low-power build **Why it made the list** - Its listing describes 500W of continuous output and 80 PLUS certification at 80% efficiency under typical load. - It lists two PCIe 6+2 pin connectors and active PFC. - Amazon's own summary of its reviews lists power quality, noise level, installation and connectors as positive. **Drawbacks** - The listing names the plain 80 PLUS certification, where the other picks list Gold or Bronze. - Amazon's own summary lists reliability and compatibility as mixed, with some reporting a failure within months. **Watch for this:** Thermaltake sells the 600W and 700W units of this line as separate listings with their own ratings. **Skip it if** you plan a power-hungry build. Tom's Hardware says to aim for a unit that runs near 50% load, and this is the smallest unit in the guide. ## What we left out, and why We read 40 result cards across two pages of "pc power supply". Amazon showed only 20 per page, and 8 were sponsored, so we set those aside. The rest were 32 distinct organic listings, and we skipped the ones that were not PC power supplies: UPS battery backups and replacement units for branded desktops. We then chose 10 contenders by review count, with at most one listing per product, and read the Amazon page of each. We kept six. Four were left out: - **Thermaltake Smart 600W.** The 600W unit of the same line as the 500W pick, listed separately with its own total, and its page price disagreed with the price in its size menu. - **MSI MAG A850GL.** A second unit from the same MSI line as the top pick. Amazon's own summary lists reliability as negative, with some units failing, and noise as mixed. - **CORSAIR RM1000e.** The 1000W unit of the same line as the 850W pick, listed separately, and its page price disagreed with the price in its size menu. - **Thermaltake GF1 850W.** The page is set to 850W but a review names the 1050W model, so its reviews look shared across wattages. Its price also disagreed with its size menu. Tom's Hardware and Club386 name a 650W be quiet! unit and a 1000W be quiet! Dark Power unit as their top picks. Neither is the wattage we read, so neither is in this guide. ## Questions people ask ### What is the best PC power supply? For a fully modular Gold unit at 750W, the [MSI MAG A750GL](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-1). For 850W, the [Corsair RM850e](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-2). For 1000W, the [ASUS TUF Gaming 1000W](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-3) or the [be quiet! Pure Power 13 M](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-4). ### How much wattage does a PC power supply need? Tom's Hardware says to aim for a unit that runs near 50% load. It adds that maker calculators rely on thermal design power, which often overestimates real needs, so many buyers end up with a larger and more expensive unit than they need. Choosing the graphics card too? See our [guide to GPUs for 1440p gaming](https://twelvetabs.com/reviews/best-gpus-for-1440p-gaming/). ### Is a modular power supply worth it? Tom's Hardware and Club386 both favor modular cables, for a tidier build with better airflow. The [MSI MAG A750GL](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-1) lists fully modular cabling and the [MSI MAG A650BN](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-5) is non-modular. ### What is the 12V-2x6 connector? Tom's Hardware says the ATX 3.1 standard replaced the 12VHPWR connector with 12V-2x6. Club386 says the newest graphics cards that need it call for a dedicated cable and socket on the power supply. The [be quiet! Pure Power 13 M](https://twelvetabs.com/reviews/best-pc-power-supplies/#pick-4) lists a native 12V-2x6 connector. Cooling the processor too? See our [guide to liquid coolers](https://twelvetabs.com/reviews/best-liquid-coolers/). ### How did TwelveTabs choose these power supplies? TwelveTabs, our AI shopping agent, compared Amazon's results for "pc power supply", read the pages of 10 contenders and named six picks, as of October 2, 2026. We checked the advice against Tom's Hardware and Club386. To see what it picks today, run the search yourself with the button on this page. ## How we researched On October 2, 2026 we read the first two pages of Amazon's results for “pc power supply”: 40 result cards, 32 distinct organic listings. AI compared them, read the Amazon pages of 10 contenders and named 6 picks. AI wrote this guide from that research. Listings change: we read them on October 2, 2026, and a size, color or seller may differ today. Each page opened on one default wattage, so its price is for that one and can differ from Amazon's search card. Amazon showed only 20 result cards per page for this search, so we read 40. Wattage, efficiency rating and cable style come only from the listing text, which the collector cut short, so a feature that is not named here may still be on the full page. Tom's Hardware and Club386 review power supplies by their measurements, which listings do not report. ### Sources - [Tom's Hardware: Best Power Supplies 2026](https://www.tomshardware.com/reviews/best-psus,4229.html) - [Club386: Best PSU 2026](https://www.club386.com/best-psu/)