shippingWe‘re shipping as usual! The Canada Post strike only affects certain remote deliveries and PO Boxes. Details
shipping Holiday Shipping Details & Extended Holiday Returns
  • In Stock
  • Sold by Newegg
  • New
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
Haswell Support
+12V Rails
SATA Power Connector
CrossFire
SLI
PFC
Fans
Max PSU Length
Connectors
All Top Brands
Availability
Condition
Current Promotion
Discount
Sold by
Useful Links
Customer Ratings
  • MSI PSU GL Series
  • Supernova GT series
  • VERTEX
  • PERFORMANCE. SILENCE. GAMING
  • BUILD IT BETTER
  • Featured Brands

    See Deals from CorsairSee Deals from SeaSonic USASee Deals from RosewillSee Deals from ThermaltakeSee Deals from ASUS
Sort By:
View:
2000W Mining Power Supply 2000W PSU ETH Mining Rig Power Source GPU PSU with 10*PCI 6Pin 110v  220v
Quick View
  •  
  • $478.41 
  • Free Shipping
KX5CT DELL VOSTRO 470MT 350WATT POWER SUPPLY
Quick View
  •  
  • $30.00 
  • $39.99 Shipping
D-Link Ad-071Al Power Adapter 7.5Vdc 1A
Quick View
  •  
  • $56.16 
  • $39.99 Shipping
0950-3623 HP Power Suply 160 Watt For Pavilion PC's -
Quick View
  •  
  • $68.40 
  • $39.99 Shipping
Dell 3WFNF Inspiron 540S/545S 250W 24-Pin Desktop Power Supply
Quick View
  •  
  • $39.60 
  • $39.99 Shipping
HPE 283623-001 Redundant AC Power Supply
Quick View
  •  
  • $53.99 
  • $39.99 Shipping
400W    MINI PSU ATX PC Power Supply    PSU 12V     atx
Quick View
  •  
  • $115.26 
  • Free Shipping
Ibm 14J0665 Ibm 14J0665
Quick View
Ibm 14J0665 Ibm 14J0665
  • Model #: 14J0665
  •  
  • $140.40 
  • $39.99 Shipping
Gateway Sa80T-3115_ Ac Adapter 19V 4.2A Genuine Gateway
Quick View
  •  
  • $38.16 
  • $39.99 Shipping
240W ThinkStation E31 PSU
Quick View
  •  
  • $53.28 
  • $39.99 Shipping
upply 425 Watt For Xseries 225 Server, Intellistat
Quick View
  •  
  • $51.48 
  • $39.99 Shipping
Dell ATX Power Supply
Quick View
DELL
Dell ATX Power Supply
  • Model #: H2370
  •  
  • $143.28 
  • $39.99 Shipping
Qlogic 100W Open Frame Power Supply Unit
Quick View
  •  
  • $366.48 
  • $39.99 Shipping
PSU For Emacs 300W Switching Power Supply P1S-6300V
Quick View
  •  
  • $993.60 
  • Free Shipping
PSU For IEI 300W Switching Power Supply ACE-832AP-S
Quick View
  •  
  • $1,204.74 
  • Free Shipping
PSU For 3Y 300W Switching Power Supply YM-2301H YH-5301C
Quick View
PSU For 3Y 300W Switching Power Supply YM-2301H YH-5301C
Quick View
PSU For Emacs 300W Switching Power Supply MPN1-6300F
Quick View
  •  
  • $978.08 
  • Free Shipping
PSU For IEI 300W Switching Power Supply ACE-832AP-S
Quick View
  •  
  • $1,204.74 
  • Free Shipping
PSU For Emacs 300W Switching Power Supply R2A-6300P-R
Quick View
  •  
  • $1,040.18 
  • Free Shipping
PSU For Emacs 300W Switching Power Supply R2A-6300P-R
Quick View
  •  
  • $1,040.18 
  • Free Shipping
PSU For 300W Switching Power Supply R2G-6300P-R
Quick View
  •  
  • $1,102.28 
  • Free Shipping
PSU For iEi 300W Switching Power Supply ACE-R4130AP1-RS
Quick View
  •  
  • $1,335.15 
  • Free Shipping
PSU For 3Y 300W Switching Power Supply YM-2301H YH-5301C
Quick View
PSU For iEi 300W Switching Power Supply ACE-R4130AP1-RS
Quick View
  •  
  • $1,335.15 
  • Free Shipping
PSU For Emacs 300W Switching Power Supply P1S-6300V
Quick View
  •  
  • $993.60 
  • Free Shipping
PSU For Emacs 300W Switching Power Supply MPN1-6300F
Quick View
  •  
  • $978.08 
  • Free Shipping
PSU For Emacs 250W Switching Power Supply RDT-6250P-R
Quick View
  •  
  • $1,257.53 
  • Free Shipping
PSU For Emacs 250W Switching Power Supply RDT-6250P-R
Quick View
  •  
  • $1,257.53 
  • Free Shipping
PSU For CWT 250W Switching Power Supply PSB250Q-J3
Quick View
  •  
  • $1,195.43 
  • 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:

Dustin Yates
9/22/2025 3:20:59 PM
Decent budget power supply

“ I bought this power supply to replace an old Seasonic PSU in my secondary gaming desktop. ”

ASRock Challenger CL-650G 650W 80 PLUS GOLD Certified Non-Modular Power Supply, ATX3.1 Ready, 5 Years Warranty
Thomas C.
9/21/2025 4:44:22 PM
Great efficient PSU

“ This is my first ASRock power supply, but I've been using an ASRock motherboard in a different machine for over 10 years. ”

ASRock Challenger CL-650G 650W 80 PLUS GOLD Certified Non-Modular Power Supply, ATX3.1 Ready, 5 Years Warranty
peter d.
9/21/2025 5:52:10 AM
SF850 SFX Power Suplly - really excellent

“ The old GPU had only a few millimeters clearance between it's fan and the full ATX power supply. ”

Corsair SF Series (2024) SF850, 80 PLUS Platinum, Fully Modular SFX Power Supply, CP-9020256-NA
Anonymous
9/19/2025 10:30:47 AM
MAG A1000GL PCIE 5, 80 GOLD Fully Modular Gaming PSU

“ MSI - MAG A1000GL PCIE 5, 80 GOLD Fully Modular Gaming PSU, 12V-2×6 Cable, ATX 3.1 & PCIE 5.1 Ready, 1000W Power Supply, 10 Year Warranty ”

MSI - MAG A1000GL PCIE 5, 80 GOLD Fully Modular Gaming PSU, 12V-2×6 Cable, ATX 3.1 & PCIE 5.1 Ready, 1000W Power Supply, 10 Year Warranty
Karl M.
9/18/2025 8:36:23 PM
Most all my PCs have Corsair Power Supplies!!!

“ Corsair Power supplies JAM! ”

CORSAIR RMx Series RM850x ATX Power Supply - Fully Modular - ATX 3.1 - PCIe 5.1 - Cybenetics Gold - Low-Noise - Japanese Capacitors - 850 Watts
Thomas G.
9/18/2025 11:16:47 AM
Good for Starter PC

“ I would recommend it for anyone who's looking to build a starter PC. ”

ASRock Challenger CL-650G 650W 80 PLUS GOLD Certified Non-Modular Power Supply, ATX3.1 Ready, 5 Years Warranty