Skip to main content
  • In Stock
  • Sold by Newegg
  • New
  • Combo Deals Only
Brands
Show More
Price
Show More
Type
Show More
Energy-Efficient
Show More
Maximum Power
Show More
Modular
Main Connector
PCI-Express Connector
Show More
Fan LED
PSU Noise Level
Show More
Sold by
Haswell Support
+12V Rails
SATA Power Connector
CrossFire
SLI
PFC
Fans
Max PSU Length
Connectors
All Top Brands
Availability
Condition
Current Promotion
Discount
Useful Links
Customer Ratings
  • MSI PSU GL Series
  • Seasonic – Focus
  • ASUS Upgrade What Matters
  • Pick The Right PSU for Your Build
  • Featured Brands

    See Deals from CorsairSee Deals from SeasonicSee Deals from RosewillSee Deals from ThermaltakeSee Deals from ASUS
Sort By:
View:
Power Supply - Model#: DVP512LJ
Quick View
  •  
  • $165.00 –
  • Free Shipping
Vszerda Development IPS350CQ20H HASWELL Ready 350w ATX PSU Cases IP-S350CQ2-0 H
Quick View
  •  
  • $206.38 –
  • Free Shipping
HP 686154-001 600W power supply - Hot Plug (HP), 12V, redundant, revision 4
Quick View
  •  
  • $537.56 –
  • Free Shipping
PSU For Power-One 6900 8900 8950 DC 850W Switching Power Supply FND850-S101G PWR-0149-04
Quick View
  •  
  • $666.00 –
  • Free Shipping
RSP-320-5 AC-DC Switching Enclosed Power Supply PFC
Quick View
RSP-320-5 AC-DC Switching Enclosed Power Supply PFC

Limited time offer, ends 11/08

  • Model #: BLC73X-626-ZM-162
  • $129.40 - $131.80
*750W H/E PLATINUM POWER SUPPLY
Quick View
  •  
  • $153.00 –
  • Free Shipping
D18-180P1A for Desktop PC Power Supply L08404-002
Quick View
  •  
  • $277.89 –
  • Free Shipping
RQ-125D AC-DC Power Supply Quad Output 5V 12V 24V 12V 8 Amp
Quick View
RQ-125D AC-DC Power Supply Quad Output 5V 12V 24V 12V 8 Amp

Limited time offer, ends 11/08

  • Model #: BLC73X-626-ZM-66
  • $128.60 - $131.00
Mediasonic AC Power Supply for 4 Bay Hard Drive Enclosure Series HF2 / HF7 / HFR2 / HFR7
Quick View
  •  
  • $136.00 –
  • Free Shipping
PSU For Emerson Network Power 1200W Switching Power Supply DS1200-3-002 EX4500-PWR1-AC-FB
Quick View
  •  
  • $377.00 –
  • Free Shipping
Lambda Power Supply Hws15-15/A 100-240 Vac .5 A (6098)
Quick View
  •  
  • $317.00 –
  • Free Shipping
DC/DC Power Supply Single Output 30 Volt 20A 10-Pin
Quick View
For G9 500W Server power 720478-B21 754377-001 723594-001 HSTNS-PC40 Power Supply
Quick View
  •  
  • $134.00 –
  • Free Shipping
For DL360 DL380G6 G7 G8 460W Server power  499249-001 Power Supply
Quick View
  •  
  • $69.00 –
  • Free Shipping
HDS Power VSP G400 G600 G800 R0676-A0001-03 Storage Power Supply 600W
Quick View
  •  
  • $489.00 –
  • Free Shipping

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:

Anonymous
10/13/2026 7:46:02 AM
Great PSU!

“ This is an excellent power supply and the cables feel and look nice too. ”

SeaSonic FOCUS GX ATX 3 (2024) GX-1000 1000 W ATX 3.1 80 PLUS GOLD Certified Full Modular Power Supplies
Mario g.
10/6/2026 11:13:39 AM
Great product

“ Bang for buck PSU for my sons first gaming pc ”

ASRock PRO Series PRO-750G 750 W ATX 3.1 Compatible 80 PLUS GOLD Certified Power Supply
Anonymous
9/25/2026 11:30:00 AM
Great product, reasonable cost, prompt shipping.

“ The ASRock PRO 850W Gold was purchased at a reasonable cost, shipped timely, and fits easily into my mid-ATX tower. ”

ASRock PRO Series PRO-850G 850 W ATX 3.1 Compatible 80 PLUS GOLD Certified Power Supply
Anonymous
9/22/2026 11:54:52 AM
Was easy to install, just look out for 8 pin cable!

“ Works great and fits well in my older PC! ”

CORSAIR RM850e (2025) Fully Modular Low-Noise ATX Power Supply - ATX 3.1 & PCIe 5.1 Compliant - 105°C-Rated Capacitors - Cybenetics Gold Efficiency