Power Supplies - Showing 2377 - 2400 of 17980 Products
Refurbished: 1Pcs for DPS-460KB J 12V 38A 460W server switching power supply
- Model #: 792597719419
- Item #: 9SIVRWKKXD7463
- Return Policy: Nytke team 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: Power Supply for S5700-52C-PWR-EI PSC500-A W0PSA5000 S6700 500W
- Model #: 753525984071
- Item #: 9SIVB8UKAA9069
- Return Policy: Magicpower Return Policy
Refurbished: For 756487-001 QR491-63004 3APR 8000 Controller module
- Model #: 726727817409
- Item #: 9SIVRWKKXB0995
- Return Policy: Nytke team Return Policy
Refurbished: For FSP500-50HPN Gaming Console Desktop Power Supply 500W Graphics ...
- Model #: 722954726842
- Item #: 9SIVB8UKAA7367
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1200W Power Supply PS-4122-1 PS-4122-1 HA N28487-001
- Model #: 744623310947
- Item #: 9SIVB8UKD12139
- Return Policy: Magicpower Return Policy
Refurbished: For BROCADE DCX 8510-8 2000W Power Supply AA25760L 23-0000067-01
- Model #: 703454715925
- Item #: 9SIVB8UKAJ5952
- Return Policy: Magicpower Return Policy
Refurbished: FSP NF5460M4 NF8480 M4 48V 800W Power Supply FSP800-20ERM-LR
- Model #: 753525942231
- Item #: 9SIVB8UKAA5122
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 800W Power Supply 720479-B21 DPS-800AB-11 A HSTNS-PD41 ...
- Model #: 744623316444
- Item #: 9SIVB8UKD46508
- Return Policy: Magicpower Return Policy
Refurbished: FSP850-50FGPH1 Rated 850W FLEX Industrial Control Server Small 1U Power ...
- Model #: 722954735875
- Item #: 9SIVB8UKAA6190
- Return Policy: Magicpower Return Policy
Refurbished: For SGA005 1100W VNX5200/5400/071-000-036 1050W power supply
- Model #: 726099254062
- Item #: 9SIVRWKKXD2047
- Return Policy: Nytke team Return Policy
Refurbished: PWS-441P-1H 480W Server Power Supply Short Chassis CSE-813M
- Model #: 753525947670
- Item #: 9SIVB8UKA99917
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for R4850G6 48V50A Communication Power Module 3000W
- Model #: 716837094777
- Item #: 9SIVB8UKX62258
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Rated 270W Switching Power Supply ATX-350SD
- Model #: 744623304526
- Item #: 9SIVB8UKCW6231
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO A7000 A710 S300 500 700 W4600I E4200i E4920i E2600i 130W ...
- Model #: 744623300948
- Item #: 9SIVB8UKCV8096
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For R-SENDA 450W Switching Power Supply GK-450U SD-450TK
- Model #: 703454715888
- Item #: 9SIVB8UKAJ5933
- Return Policy: Magicpower Return Policy
Refurbished: For Area-51 1500W Power Supply D1500EF-00 800GY
- Model #: 752804580591
- Item #: 9SIVRWKKXB2613
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO ITX Small 1U Rated 150W Peak 250W Switching Power Supply ...
- Model #: 744623307299
- Item #: 9SIVB8UKD06336
- Return Policy: Magicpower Return Policy
Refurbished: For HU850EF-00 48Y6D D850EF-00 N1WJD D1000EGM-00 Power Supply
- Model #: 726727729658
- Item #: 9SIVRWKKXA3062
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 1620-G20 550W Switching Power Supply R1CA2551B
- Model #: 744623317755
- Item #: 9SIVB8UKD64742
- Return Policy: Magicpower Return Policy
Refurbished: For 300- 2138-03 X4450 SPARC T5220 T5240 Server Power Supply ...
- Model #: 726727815764
- Item #: 9SIVRWKKXB0237
- Return Policy: Nytke team Return Policy
Refurbished: For ST-850E-AZ rated 850W power supply
- Model #: 752804578130
- Item #: 9SIVRWKKXB2277
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for R440 Cold Power Supply 0T7MF2 AC450E-S1 T7MF2
- Model #: 716837097822
- Item #: 9SIVB8UKX62990
- Return Policy: Magicpower Return Policy
Refurbished: PWS-1K41F-1R Power Supply NF8560 M2 Server 1400W Redundant Power
- Model #: 753525949308
- Item #: 9SIVB8UKAA0086
- 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.
