Power Supplies - Showing 1921 - 1944 of 17990 Products
Refurbished: 1pcs for B320 B540 B545 B550 B350 B520 Power Supply HKF 2002-32 APA006
- Model #: 716837096962
- Item #: 9SIVB8UKX62842
- Return Policy: Magicpower Return Policy
Refurbished: For FSP235-60GT FSP400-60ATV (PF) FSP400-601UE FSP700-50UEB Power ...
- Model #: 752804572312
- Item #: 9SIVRWKKXA2064
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for U1A-D10550-DRB R2A-DV0550-N cage
- Model #: 792597710003
- Item #: 9SIVRWKKXD4120
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO ITX FLEX CP5141 CP5140 E200 IBM Small 1U Rated 270W Peak ...
- Model #: 744623301068
- Item #: 9SIVB8UKCV8098
- Return Policy: Magicpower Return Policy
Refurbished: For cPS-H325/AC HAC250P-490 (E) Power Module 3U 6U
- Model #: 726727722864
- Item #: 9SIVRWKKXA2322
- Return Policy: Nytke team Return Policy
Refurbished: For RG-PA600I switch 600W
- Model #: 752804577171
- Item #: 9SIVRWKKXB2142
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for EVRBE300CI Lithium Battery Relay 12V300A 800v Contactor
- Model #: 792597718436
- Item #: 9SIVRWKKXD7206
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for EX-PWR-320-AC 740-020957 DCJ3202-01P 320W Power Supply
- Model #: 716837091288
- Item #: 9SIVB8UKX61029
- Return Policy: Magicpower Return Policy
Refurbished: For BICKER BEA-740 450w pchifi power supply
- Model #: 703454721025
- Item #: 9SIVB8UKAJ6564
- Return Policy: Magicpower Return Policy
Refurbished: Power Module 20A 1000W MAX R48-1000A
- Model #: 753525958010
- Item #: 9SIVB8UKAA9002
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 300W Switching Power Supply R2A-6300P-R
- Model #: 744623305783
- Item #: 9SIVB8UKD01922
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 9273ECFANMOD/9273ECPSU-0010 IFRP-532NFE Module Power ...
- Model #: 792597722822
- Item #: 9SIVRWKKXD8601
- Return Policy: Nytke team Return Policy
Refurbished: For FSP270-60LE FSPATX250W P4 HK250-93FP ITX Chassis FLEX NAS 1U Power ...
- Model #: 726727733785
- Item #: 9SIVRWKKXA4020
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for CRPS redundant power supply DPS-1200AB-16 B 2U 1200W
- Model #: 716837092056
- Item #: 9SIVB8UKX61360
- Return Policy: Magicpower Return Policy
Refurbished: For 5562819-A HDS VSP G200 G400 G600/800/1000 960GB
- Model #: 726727821727
- Item #: 9SIVRWKKXB1575
- Return Policy: Nytke team Return Policy
Refurbished: Communication Power Module CVR460-96P01B
- Model #: 703454717752
- Item #: 9SIVB8UKAJ6227
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO R430 R330R340 R440 DS1500 550W Switching Power Supply ...
- Model #: 744623307275
- Item #: 9SIVB8UKD06329
- Return Policy: Magicpower Return Policy
Refurbished: For IDP 800 PWS-401-1R 400W Power Supply
- Model #: 726727723304
- Item #: 9SIVRWKKXA2283
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO RS260-E4/RX8 750W Switching Power Supply DPS-750EB A ...
- Model #: 744623313726
- Item #: 9SIVB8UKD21784
- Return Policy: Magicpower Return Policy
Refurbished: 2130W Power Supply H66158-011 PSSF222201A H66158-010 H66158-009
- Model #: 753525934847
- Item #: 9SIVSY0KUU5208
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1200W Switching Power Supply PAC1K2S12-B
- Model #: 753525942835
- Item #: 9SIVB8UKAA5160
- Return Policy: Magicpower Return Policy
Refurbished: For R2G-5800V 2U800W GIN-3800V R2K-5800V KIN-2800V Power Supply
- Model #: 726727820324
- Item #: 9SIVRWKKXB1453
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for T30U-HY1 Power Supply 3001U-PFC 300W
- Model #: 792597704231
- Item #: 9SIVRWKKXD2525
- Return Policy: Nytke team Return Policy
Refurbished: For NAS RN4220 Server Power Supply 550W DPS-550LB E
- Model #: 722954725951
- Item #: 9SIVB8UKAA7259
- 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.
