Power Supplies - Showing 2257 - 2280 of 18359 Products
Refurbished: SuperMicro PWS-1K41F-1R 1400W Server Power Supply 80Plus Gold
- Parts: 30 days warranty
- Labor: 30 days warranty
- Model #: PWS-1K41F-1R 1400W PSU
- Item #: 9SIV0NRKT59616
- Return Policy: IT WHOLESALERS Return Policy
Refurbished: HP Compaq Pro 6000 6005 6200 Elite 8000 8100 8200 240 Watt SFF Computer ...
- Parts: 30 DAYS WARRANTY
- Labor: 30 DAYS WARRANTY
- Model #: HP-503375-001
- Item #: 9SIV0NRKZW6897
- Return Policy: IT WHOLESALERS Return Policy
Refurbished: DELL F495E-S0 495 Watt Power Supply For Poweredge R620 R720
- Model #: F495E-S0
- Item #: 9SIV0NRKZW6901
- Return Policy: IT WHOLESALERS Return Policy
Refurbished: HP 626409-001 600W Power Supply for Z400
- Features: for Workstation z400
- Model #: 626409-001
- Item #: 9SIV1JD9BR2004
- Return Policy: Avanti Data Products Return Policy
Refurbished: GE CYCOLOY HARD DRIVE CADDY PC/ABS-FR(40)K C6200 USG
- Model #: ABS-FR(40)
- Item #: 9SIV1JD7AM8380
- Return Policy: Avanti Data Products Return Policy
Refurbished: HPE 686679-001 350 W 1U Factory Integrated Power Supply Kit
- Model #: 686679-001
- Item #: 9SIV1JD9BR1840
- Return Policy: Avanti Data Products Return Policy
Refurbished: HP 437573-B21 1200W DC Power Supply
- Brand: HPE
- Type: Other
- Color: White
- Model #: 437573-B21
- Item #: 9SIV1JD9BR4044
- Return Policy: Avanti Data Products Return Policy
Refurbished: Juniper PWR-MX480-2520-AC-S PWR-MX480-2520-AC-S Proprietary Power ...
- Color: Multicolor
- Model #: PWR-MX480-2520-AC-S
- Item #: 9SIV1JDKC59748
- Return Policy: Avanti Data Products Return Policy
Refurbished: DELL M2JTJ EQUALLOGIC 1080W POWER PS6100
- Model #: M2JTJ
- Item #: 9SIV1JD7AM8566
- Return Policy: Avanti Data Products Return Policy
Refurbished: 24P6867 IBM 250WATT HOT SWAP REDUNDANT POWER SUPPLY
- Model #: 24P6867
- Item #: 9SIV1JD7936888
- Return Policy: Avanti Data Products Return Policy
Refurbished: HP 671354-001 DL360 G6 G7 Power Supply Blank
- Model #: 671354-001 -
- Item #: 9SIV1JDA7T3700
- Return Policy: Avanti Data Products Return Policy
Refurbished: HPE 466610-001 ATX12V Power Supply
- Model #: 466610-001
- Item #: 9SIV1JDKC62835
- Return Policy: Avanti Data Products Return Policy
Refurbished: 24R2706 IBM 950WATT POWER SUPPLY
- Model #: 24R2706
- Item #: 9SIV1JD7UR1590
- Return Policy: Avanti Data Products Return Policy
Refurbished: IBM 43W5103 MOTHERBOARD SYSTEM BOARD FOR X3250 M2 SERVER
- Model #: 43W5103
- Item #: 9SIV1JD7AM9960
- Return Policy: Avanti Data Products Return Policy
Refurbished: 1Pcs for PSB350M-J3 power supply PSB400M-J3
- Model #: 792597728374
- Item #: 9SIVB8UKX33146
- Return Policy: Magicpower Return Policy
Refurbished: MER048-50A Communication Power Rectifier Module MER048-50010-RB/RD
- Model #: 724780778309
- Item #: 9SIVT8HKWF2640
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1PCS for 460W PS-2461-7H Switching Power Supply
- Model #: 792597705580
- Item #: 9SIVRWKKXD2718
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Z840 1125W Power Supply DPS-1125AB-1 A DPS-1125AB-1A ...
- Model #: 744623316086
- Item #: 9SIVB8UKD46470
- Return Policy: Magicpower Return Policy
Refurbished: 7040 3650 3040 3046 8Pin 240W Power Supply H240EM-00 L240AM-00 ...
- Model #: 753525935394
- Item #: 9SIVB8UKA99352
- Return Policy: Magicpower Return Policy
Refurbished: T2000 450W Power Supply 300-1817/tyco A208300-2110/DS450HE-3-001
- Model #: 722954725364
- Item #: 9SIVB8UKAA7219
- Return Policy: Magicpower Return Policy
Refurbished: N2200-PAC-400W Power Supply PS-2421-1-LF NEXUS2000 400W Work Good
- Model #: 753525933734
- Item #: 9SIVB8UKA99190
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for relay 24VDC 250A lithium battery contactor EVHB250A-24B
- Model #: 792597718368
- Item #: 9SIVRWKKXD7037
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO RS6000 DS8100 288W Power Supply 3D51-25-2 00FW761 ...
- Model #: 759950243691
- Item #: 9SIVB8UKDA9025
- Return Policy: Magicpower Return Policy
Refurbished: PWR-C1-1100WAC 1100W Power Supply 3850-48P/24P Series Switch
- Model #: 753525949025
- Item #: 9SIVB8UKAA0061
- Return Policy: Magicpower Return Policy
Tips for Buying a Computer Power Supply Unit (PSU)
Introduction
A computer power supply is one of the most crucial components in a computer, as it is responsible for providing stable and regulated power for the system. If you are shopping for a computer power supply, finding the ideal one will require you to consider several important criteria. Those criteria include the size and form factor of the case, the wattage requirement of the system, efficiency, and your internal cabling preference.
Size Standards
Computer power supplies are available in a variety of different sizes and form factors. It is crucial that the power supply unit (PSU) you select matches the size requirements of your case and motherboard. If you have a Mini ITX case for example, you cannot utilize a standard ATX power supply. For more information about power supply form factors, see below.
- ATX
The standard power supply size that will fit most mid-size and full-size tower cases. Some micro ATX cases can utilize ATX power supplies as well. - Mini ITX
Mini ITX power supplies are designed specifically for mini ITX systems but may also fit other small form factor computer cases. - SFX
SFX computer power supplies are smaller than standard ATX PSUs and are meant for micro ATX and other small form factor computer cases. - TFX
Another small form factor computer power supply that is thinner to fit micro ATX, Mini ITX, and other smaller systems.
Wattage
A computer power supply’s wattage rating is a measurement of how much power it can provide to the hardware. When shopping for a power supply, you need to consider how much power your computer system requires. To calculate your system’s power requirement, add up the power draw for all the components.
Start with the motherboard and processor, and then include graphics cards, system memory, storage devices, and other expansion cards. For an even better estimate, you should include USB devices, internal fans, and other accessories. Once you have your estimate, try to find a computer power supply that is capable of at least that. For a larger safety margin, you should get a PSU that is well above that minimum.
Cable Management
There are two cable management options for computer power supplies, modular and non-modular. Modular cabling allows you to connect and disconnect internal power cables from the power supply itself, so you can avoid having unused cables and connectors dangling inside the case. Computer power supplies that feature modular cabling typically cost more than those without it.
Efficiency
The efficiency of a computer power supply is a ratio of how much power it provides and how much power it draws. For instance, a power supply that provides 200 watts of power but pulls 400 watts from a power outlet has a 200/400 or 50% efficiency ratio. The more efficient your computer power supply is, the less it will cost you to operate.
One metric you can use to gauge efficiency is what level of 80 PLUS® certification a power supply has, if it any. The different levels of 80 PLUS certification include 80 PLUS, 80 PLUS Bronze, 80 PLUS Silver, 80 PLUS Gold, 80 PLUS Platinum, and 80 PLUS Platinum. The most basic certification is 80 PLUS, which indicates an efficiency rating of at least 80%. The other certifications rank from Bronze to Titanium, with the latter being the highest attainable. If computer power supply efficiency is a big concern for you, try to find one with a high level of 80 PLUS certification.
