Power Supplies - Showing 1897 - 1920 of 17931 Products
Refurbished: 1Pcs for 2400W server power supply D2400E-S2 A2400E-S0 0KGP87 0J1CC3
- Model #: 716837088196
- Item #: 9SIVB8UKX59796
- Return Policy: Magicpower Return Policy
Refurbished: For 3Y 2U Power Supply YH-5301E
- Type: ATX
- Model #: 703454739303
- Item #: 9SIVSY0KUU2373
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For 600W server power supply DPS-600SB E DPS-600SB A E35862-006
- Model #: 726727733204
- Item #: 9SIVRWKKXA3695
- Return Policy: Nytke team Return Policy
Refurbished: D14-280P1A 796348-001,796418-001,PCE015,Prodesk 600
- Model #: 703454720523
- Item #: 9SIVB8UKAJ6511
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 250W Power Supply PC40N250EV
- Model #: 759950248573
- Item #: 9SIVB8UKDF9505
- Return Policy: Magicpower Return Policy
Refurbished: DL160 G9 Cold Server Power Supply 766879-001 748949-001 765423-201 ...
- Model #: 753525986044
- Item #: 9SIVB8UKAA8496
- Return Policy: Magicpower Return Policy
Refurbished: For CA05951-9105 BTU E4000 DX410 DX440
- Model #: 726727777055
- Item #: 9SIVRWKKXB0082
- Return Policy: Nytke team Return Policy
Refurbished: T7810 T5810 T7910 H1300EF-02 1300W T31JM V5K16
- Model #: 753525985467
- Item #: 9SIVB8UKAA9228
- Return Policy: Magicpower Return Policy
Refurbished: 250W Power Supply EBD-255S105DV
- Model #: 722954989155
- Item #: 9SIVB8UKAJ5594
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For FSP 15V24A 400W Power Supply ...
- Model #: 759950240522
- Item #: 9SIVB8UKDA0385
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply for N2power XL125-12CS XL125-3 +12V 10.5A
- Model #: 724780777791
- Item #: 9SIVB8UKAA7576
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for DPS-300AB 24 industrial computer power supply
- Model #: 716837092650
- Item #: 9SIVB8UKX61533
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for Power Supply CPCIAC-3U-300W 900-4002-20 02090028-02 ...
- Model #: 792597722686
- Item #: 9SIVRWKKXD8609
- Return Policy: Nytke team Return Policy
Refurbished: B320 B340 B545 B550 B750 8Pin 250W Power Supply HKF2502-3A ...
- Model #: 753525944853
- Item #: 9SIVB8UKA99583
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply R-ROSOR 1U 400W Power Supply SO-3400U S0-3400U
- Model #: 722954989629
- Item #: 9SIVB8UKAJ5644
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for T640 T630 R930 2000W server power supply J5WMG 39K3H
- Model #: 716837088400
- Item #: 9SIVB8UKX59831
- Return Policy: Magicpower Return Policy
Refurbished: SYPM4KI For Schneider For APC Symmetra-LX UPS Power Supply
- Model #: 753525949803
- Item #: 9SIVB8UKAA0147
- Return Policy: Magicpower Return Policy
Refurbished: For AT Power Supply ST-235AF SP2-4300F ST-250WHV ST-250WHV ST-250A
- Model #: 726727819168
- Item #: 9SIVRWKKXB1349
- Return Policy: Nytke team Return Policy
Refurbished: FSP 180W Switching Power Supply FSP180-20AD
- Model #: 753525941975
- Item #: 9SIVB8UKAA5112
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for RCB600 12V 24V 48V Medical Power Supply
- Model #: 792597982028
- Item #: 9SIVB8UKX33156
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for D200 775W Storage Cabinet Power Supply SPS800-512TE-A
- Model #: 716837097273
- Item #: 9SIVB8UKX62917
- Return Policy: Magicpower Return Policy
Refurbished: For DS1050-3-002 Server Switching Power Supply
- Model #: 752804575832
- Item #: 9SIVRWKKXB2032
- Return Policy: Nytke team Return Policy
Refurbished: ENP-7025B FLEX 1U 250W 100-240V 3.5-1.5A 60-50Hz 80 PLUS Power Supply
- Model #: 753525947366
- Item #: 9SIVB8UKA99894
- Return Policy: Magicpower Return Policy
Refurbished: ACE-816A 1U 200W ACE-816A-RS Industrial Power Supply
- Model #: 753525948929
- Item #: 9SIVB8UKAA0027
- 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.
