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Power Supplies

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SeaSonic USA newegg SeaSonic SS-750KM3 750W ATX12V V2.3/EPS 12V V2.91 SLI Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready
  (567)
  •  ATX12V V2.3/EPS 12V V2.9...
  •  80 PLUS GOLD Certified
  •  Active PFC, SLI Ready
  • Fans: 1
  • Main Connector: 20+4Pin
  • +12V Rails: Single
  • PCI-Express Connector: 4 x 6+2-Pin
  • Model #: SS-750KM3
  • Item #: N82E16817151087
  • Return Policy: Standard Return Policy
  • $159.99
  • $149.99
  • Save: 6%
  • $9.99 Shipping

Logisys Computer newegg LOGISYS Computer PS480D 480W ATX12V Power Supply
  (273)
  •  ATX12V
  •  100-120V/ 200-240V
  •  >100,000 Hours MTBF
  • Fans: 1
  • Main Connector: 20+4Pin
  • +12V Rails: Single
  • PCI-Express Connector: No
  • Model #: PS480D
  • Item #: N82E16817170014
  • Return Policy: Standard Return Policy
  • $24.99
  • $14.99
  • Save: 40%
  • $9.99 Shipping

Athena Power newegg Athena Power AP-AT30 300W AT Power Supply
  (9)
  •  AT
  •  115 / 230 V 50/60 Hz
  • Fans: 1
  • +12V Rails: Single
  • PCI-Express Connector: No
  • SATA Power Connector: No
  • Model #: AP-AT30
  • Item #: N82E16817338010
  • Return Policy: Standard Return Policy
  • $24.99
  • $18.99
  • Save: 24%
  • $12.99 Shipping

Rosewill newegg Rosewill RV350-2 350W ATX 12V v2.2 Power Supply
  (134)
  •  ATX 12V v2.2
  •  100 - 240 V
  •  1 x 80mm silent Fan
  • Fans: 1 x 80mm silent Fan
  • Main Connector: 20+4Pin
  • +12V Rails: 2
  • PCI-Express Connector: No
  • Model #: RV350-2
  • Item #: N82E16817182023
  • Return Policy: Standard Return Policy
  • $29.99
  • $19.99
  • Save: 33%
  • $9.99 Shipping

Raidmax newegg RAIDMAX RX-380K 380W ATX12V Power Supply
  (462)
  •  ATX12V
  •  100 - 240 V
  •  1 x 80mm Fan
  • Fans: 1 x 80mm Fan
  • Main Connector: 20+4Pin
  • +12V Rails: Single
  • PCI-Express Connector: No
  • Model #: RX-380K
  • Item #: N82E16817152019
  • Return Policy: Standard Return Policy
  • $34.99
  • $19.99
  • Save: 43%
  • $5.00 USD Rebate available
  • $9.99 Shipping

Diablotek newegg Diablotek DA Series PSDA400 400W ATX12V Power Supply
  (81)
  •  ATX12V
  •  115 / 230 V 50/60 Hz
  •  +3.3V@20A, +5V@20A, ...
  • Fans: 2 x 80mm fan
  • Main Connector: 20+4Pin
  • +12V Rails: Single
  • PCI-Express Connector: No
  • Model #: PSDA400
  • Item #: N82E16817822011
  • Return Policy: Standard Return Policy
  • $29.99
  • $19.99
  • Save: 33%
  • $9.99 Shipping

Logisys Computer newegg LOGISYS Computer PS350MA 350W Micro ATX Power Supply
  (97)
  •  Micro ATX
  •  220V
  •  Built-in EMI filter
  • Fans: 1
  • Main Connector: 20+4Pin
  • +12V Rails: Single
  • PCI-Express Connector: No
  • Model #: PS350MA
  • Item #: N82E16817170015
  • Return Policy: Standard Return Policy
  • $34.99
  • $19.99
  • Save: 43%
  • $8.99 Shipping

Logisys Computer newegg LOGISYS Computer PS480X2 480W ATX12V Power Supply Dual Fan w/ Radiation Filter
  (67)
  •  ATX12V
  •  100 - 120 V / 200 - 240 ...
  •  480W Maximum Power
  • Fans: 2
  • Main Connector: 24Pin
  • SATA Power Connector: 2
  • Over Voltage Protection: Yes
  • Model #: PS480X2
  • Item #: N82E16817170024
  • Return Policy: Standard Return Policy
  • $34.99
  • $19.99
  • Save: 43%
  • $8.99 Shipping

CoolMax newegg COOLMAX I-400 400W ATX12V Power Supply
  (9)
  • $19.99
  • $9.99 Shipping

CoolMax newegg COOLMAX CA-300 300W ATX Power Supply
  (15)
  •  ATX
  •  115 / 230 V, 50/60 Hz
  •  20+4Pin Main Connector
  • Fans: 1
  • Main Connector: 20+4Pin
  • +12V Rails: Single
  • PCI-Express Connector: No
  • Model #: CA-300
  • Item #: N82E16817159041
  • Return Policy: Standard Return Policy
  • $29.99
  • $19.99
  • Save: 33%
  • $11.99 Shipping

Logisys Computer newegg LOGISYS Computer PS480D-BK 480W ATX12V Power Supply
  (266)
  •  ATX12V
  •  100 - 120 V / 200 - 240 ...
  •  Energy Star Efficiency
  • Fans: 1
  • Main Connector: 20+4Pin
  • +12V Rails: Single
  • PCI-Express Connector: No
  • Model #: PS480D-BK
  • Item #: N82E16817170012
  • Return Policy: Standard Return Policy
  • $29.99
  • $19.99
  • Save: 33%
  • $9.99 Shipping

APEX (SUPERCASE/ALLIED) newegg APEX AL-8250SFX 250W SFX12V Ver.3.1 Power Supply
  (18)
  •  SFX12V Ver.3.1
  •  100 - 240 V 50/60 Hz
  •  +3.3V@14A, +5V@12A, ...
  • Fans: 1
  • Main Connector: 20+4Pin
  • +12V Rails: Single
  • PCI-Express Connector: No
  • Model #: AL-8250SFX
  • Item #: N82E16817154024
  • Return Policy: Standard Return Policy
  • $29.99
  • $19.99
  • Save: 33%
  • $11.99 Shipping

APEVIA CORP. newegg APEVIA ATX-TL450W 450 Watts ATX12V Power Supply
  (24)
  •  ATX12V
  •  100 - 240 V 50/60 Hz
  •  +3.3V@30A, +5V@35A, ...
  • Fans: 1 x 80mm fan
  • Main Connector: 20+4Pin
  • +12V Rails: 2
  • PCI-Express Connector: No
  • Model #: ATX-TL450W
  • Item #: N82E16817148042
  • Return Policy: Standard Return Policy
  • $34.99
  • $19.99
  • Save: 43%
  • $14.99 Shipping

Diablotek newegg Diablotek DA Series PSDA350 350W ATX12V Power Supply
  (88)
  •  ATX12V
  •  115 / 230 V
  •  2 x 80mm fan
  • Fans: 2 x 80mm fan
  • Main Connector: 20+4Pin
  • +12V Rails: Single
  • PCI-Express Connector: No
  • Model #: PSDA350
  • Item #: N82E16817822007
  • Return Policy: Standard Return Policy
  • $24.99
  • $19.99
  • Save: 20%
  • $9.99 Shipping

CoolMax newegg COOLMAX I-500 500W ATX Power Supply
  •  ATX
  •  100~132VAC or 200~264VAC...
  •  +5V@21A, +3.3V@22A, ...
  • $24.99
  • $14.99 Shipping

Logisys Computer newegg LOGISYS Computer PS550E12 550W ATX12V Power Supply
  (136)
  •  ATX12V
  •  100-120Vac/ 200-240Vac
  •  1 x 120mm Ball bearing f...
  • Fans: 1 x 120mm Ball bearing fan, 2000RPM / 75CFM
  • Main Connector: 20+4Pin
  • +12V Rails: Single
  • PCI-Express Connector: No
  • Model #: PS550E12
  • Item #: N82E16817170019
  • Return Policy: Standard Return Policy
  • $34.99
  • $24.99
  • Save: 29%
  • $9.99 Shipping

CoolMax newegg COOLMAX CA-400 400W ATX v2.01 Power Supply
  (206)
  •  ATX v2.01
  •  115 / 230 V 50/60 Hz
  •  +3.3V@30A, +5V@28A, ...
  • Fans: 1
  • Main Connector: 20+4Pin
  • +12V Rails: 2
  • PCI-Express Connector: No
  • Model #: CA-400
  • Item #: N82E16817159043
  • Return Policy: Standard Return Policy
  • $34.99
  • $24.99
  • Save: 29%
  • $11.99 Shipping

Hewlett-Packard newegg HP JD055B Proprietary Power Supply
  •  Proprietary Power Supply...
  • $29.99
  • $24.99
  • Save: 17%
  • $8.99 Shipping

Rosewill newegg Rosewill SL-300TFX 300W TFX12V Power Supply
  (35)
  •  TFX12V
  •  115 / 230 V
  •  20+4Pin Main Connector
  • Fans: 1
  • Main Connector: 20+4Pin
  • +12V Rails: Single
  • PCI-Express Connector: No
  • Model #: SL-300TFX
  • Item #: N82E16817182207
  • Return Policy: Standard Return Policy
  • $24.99
  • $12.06 Shipping

Raidmax newegg RAIDMAX RX-450K Continuous 450 watts ATX 12V v2.3/EPS 12V Power Supply
  (125)
  •  ATX 12V v2.3/EPS 12V
  •  110 - 240 V 47 - 63 Hz
  •  +3.3V@20A, +5V@20A, ...
  • Fans: 120 mm Fan
  • Main Connector: 20+4Pin
  • +12V Rails: 16
  • PCI-Express Connector: No
  • Model #: RX-450K
  • Item #: N82E16817152032
  • Return Policy: Standard Return Policy
  • $29.99
  • $24.99
  • Save: 17%
  • $12.99 Shipping

Logisys Computer newegg LOGISYS Computer PS575XBK 575W ATX12V SLI Ready Power Supply
  (837)
  •  ATX12V
  •  100-120V/ 200-240V
  •  Dual 80mm Fans
  • Fans: Dual 80mm Fans
  • Main Connector: 20+4Pin
  • +12V Rails: Single
  • PCI-Express Connector: 2 x 6-Pin
  • Model #: PS575XBK
  • Item #: N82E16817170017
  • Return Policy: Standard Return Policy
  • $49.99
  • $24.99
  • Save: 50%
  • $9.99 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!

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