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PSU For 3710 3910 180W Power Supply 01756V D180EBS-00 AC180EBS-00 F3J97 H180EBS-00 L180EBS-00 0T685J NC77H
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  • $94.98 
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PSU For S5 Power Supply PCA227 PCA222 PS-6221-9 7 PCA322 633193-001 633195-001 633196-001 D10-220P1A
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  • $80.34 
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PSU For 10P 180W Power Supply PCE025 PCE010 PCG010 HK280-72PP FSP180-20TGBAB PA-2181-2 PA-2221-3 HK310-71PP
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  • $77.94 
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Power Supply 240W L240AS-00 D240ES-00 AC240AS-00 AC240ES-00 For OptiPlex 390 790 990 3010 7010 9010 SFF Computer 24pin 4pin
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  • $88.63 
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For Z228 280W Power Supply D13-280P1A DPS-280AB-5/2 A 758652-001 758753-001 PS-4281-1HB
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  • $78.34 
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For Z228 280W Power Supply D13-280P1A DPS-280AB-5/2 A 758652-001 758753-001
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  • $73.50 
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Power Supply, Gamemax Power Supply 850W Fully Modular 80+ Gold Certified with Addressable RGB Light Mode RGB-850
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  • $383.66 
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A1993 Power Supply for Mac Mini A1993 PSU Internal Adapter ADP-150BFT MRTR2 EMC 3213 Late 2018 Year
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  • $107.80 - $110.20
For Optiplex 9010 9020 2330 AIO PSU 200W Power Supply CN-0CRHDP CN-0RYK84 L200EA-00 D200EA-00 PS-2201-09DA
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  • $116.01 
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SilverStone Technology Platinum Certified Single +12V Rail ATX Power Supply, PS-ST55F-PT
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  • $327.50 
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PSU For DL360 G4 460W Switching Power Supply DPS-460BB B 361392-001 325718-001
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  • $131.46 
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For ThinkCentre M920z 150W PSU Power Supply 00PC770 5P51D77021 APH003 PA-1151-5
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  • $131.46 
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Power Supply

The PSU (a.k.a. power supply unit) is virtually the heart of the computer. It is a vitally important part that delivers power to components that comprise the computer system. A high-quality power supply can make the difference between a perfect machine and an unreliable one. Getting to know the importance of the power supply is just the first step, and getting the right PSU for your system means looking beyond just enormous power output.

You need to consider the physical size of the power supply, and whether or not it fits your case's form factor. How many "rails" does it have, and how many peripherals it can connect with. Look at placement of your cables and whether they'll fit into your case, and if you can run them to all the places your PSU must connect. Properly chosen, your power supply will last you a long time!

Bestselling Power Supplies Reviews:

Jeff K.
4/2/2026 11:24:54 AM
This CORSAIR CX-M CX750M in Black

“ I would also purchase this Corsair CX750M power supply again or maybe go up in wattage a bit more next time. ”

CORSAIR CX-M CX750M 750 W ATX 80 PLUS BRONZE Certified Semi-Modular Power Supply
Jack
3/29/2026 2:59:06 PM
Great power supply, love using it in builds.

“ I would definitely recommend buying this if you need an 850W power supply for a build and the cable management space in your case is tight and/or visible. ”

MSI MPG A850GS PCIE5, Fully Modular Gaming 850W Power Supply, 80+ Gold, Dual 12V-2x6 Cables, Server-grade Capacitor, ATX 3.1 & PCIe 5.1 Ready, Low-Noise, Semi Digital, 10 Year Warranty
Jake C.
3/25/2026 10:41:35 AM
Awesome value with few corners cut

“ It's only a bit more compact than most other ATX units, but that extra cm or so is welcome in a cramped case. ”

MONTECH CENTURY II - 850W High-End ATX Gaming Power Supply - 80 Plus Gold & Cybenetics Platinum - Fully Modular - ATX 3.1 & PCIe 5.1 Ready with 12V-2x6 Cable - 10 Years Warranty
Daniel J.
3/24/2026 1:48:17 PM
Good PSU, enough power

“ Good power for standard ATX ”

CORSAIR RMe Series RM850e 850 W ATX 3.1 Compatible Cybenetics Gold Full Modular Power Supply
Brandon S.
3/20/2026 9:52:31 PM
Amazing PSU

“ I used this on my very first PC as there was a sale going for off and the price to performance I couldnt pass up. ”

MSI MAG A1000GL PCIE5, Fully Modular Compact Gaming 1000W Power Supply, 80+ Gold, ATX 3.1 & PCIe 5.1 Ready, Native Dual-color 12V-2x6 cable, 10 Year Warranty