Power Supplies - Showing 2353 - 2376 of 17946 Products
Refurbished: PWR SUPPLY, 85W, HP-P1457F3 REV.H04, DP/N 0008765D
- Model #: HP-P1457F3
- Item #: 9SIVSYTKUT3514
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: 1Pcs for T5820 T7820 Power Supply 950W AC950EF-00 H950EF-00 WGCH4
- Model #: 716837093084
- Item #: 9SIVB8UKX61709
- Return Policy: Magicpower Return Policy
Refurbished: R520 G7 Server Power Backplane DD-3151-3F-LF
- Model #: 703454718681
- Item #: 9SIVB8UKAJ6323
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for ETP4890-A2 Switching Power Supply 48V90A R4830G1
- Model #: 716837094876
- Item #: 9SIVB8UKX62251
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for Ml310e G8 DPS-350AB-20A 671310-001 686761 Server Power Supply ...
- Model #: 792597726011
- Item #: 9SIVRWKKXD9500
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO PSU For 3Y 595W Switching Power Supply YM-3591D
- Model #: 744623314334
- Item #: 9SIVB8UKD21815
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO X4630G 4650 D430 PS-3221-9AE PE-3221-2 D15-220N1A ...
- Model #: 726099221965
- Item #: 9SIVB8UKCU6141
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for power supply/PA220J1212 ...
- Model #: 792597719587
- Item #: 9SIVRWKKXD7517
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for PWS-1K62A-1R 1600W Server Power Supply SSG-6208R 6209R
- Model #: 792597723034
- Item #: 9SIVRWKKXD8634
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 5648-PWR S5600-50C-PWR 480W Power Supply ...
- Model #: 759950247064
- Item #: 9SIVB8UKDA9447
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 740-053351 JPSU-850W-DC-AFI Power Supply 850W QFX5100
- Model #: 792597727377
- Item #: 9SIVB8UKX32789
- Return Policy: Magicpower Return Policy
Refurbished: 1U 250W Switching Power Supply EN-8257763 HPS-2501U-21205
- Model #: 753525946635
- Item #: 9SIVB8UKA99748
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for Power supply FSP250-50GUB silent FSP150-50GUB FSP100-50GUB
- Model #: 716837096610
- Item #: 9SIVB8UKX62844
- Return Policy: Magicpower Return Policy
Refurbished: New For 48V 50A Power Supply For RM4850 SMR3004D SMR3004ak1 SMR3004A ...
- Model #: 753525991246
- Item #: 9SIVB8UKAA8032
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for TX100S3 P900 power supply S26113-E563-V50-01 DPS-250AB-62A
- Model #: 792597985722
- Item #: 9SIVB8UKX57373
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For NEC AIO i5 HM55 HM65 HM75 120W Power Supply ...
- Model #: 744623316529
- Item #: 9SIVB8UKD46502
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For PHIHONG PSA-110-401-1
- Model #: 759950241437
- Item #: 9SIVB8UKDA8715
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for ACE-A630C-R10 ACE-A622C-R10 DPS-350AB-24G ...
- Model #: 716837087960
- Item #: 9SIVB8UKX59798
- Return Policy: Magicpower Return Policy
Refurbished: PBA600F-24-XAACC 100-240Vac 50-60Hz 8.2A Switch Power Supply
- Model #: 753525986167
- Item #: 9SIVB8UKAA8493
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 10 pin 260W power supply PA- 2261-1 HK280-72PP FSP180-20T ...
- Model #: 716837089049
- Item #: 9SIVB8UKX60313
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 24V 4.3A 100W Power Supply PJA100F-24 PJA100F
- Model #: 759950247163
- Item #: 9SIVB8UKDF9387
- Return Policy: Magicpower Return Policy
Refurbished: EMC 700-004751-0000 1080W Power Supply 071-000-569-03
- Model #: EMC 700-004751-0000 071-000-569-03
- Item #: 9SIVSYTKWT6598
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: DPS-1200AB-8A server power supply 12V 100A 1200W power supply
- Model #: 703454722923
- Item #: 9SIVB8UKAJ6748
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for P1S-2400V-R(400W)
- Model #: 716837090649
- Item #: 9SIVB8UKX60842
- 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.
