Power Supplies - Showing 2377 - 2400 of 18360 Products
Refurbished: ASA-PWR-AC power module
- Model #: 703454721438
- Item #: 9SIVB8UKAJ6580
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Small 1U With PCIE 6+2Pin 300W For YM-5301G YM-5301GA01R
- Model #: 759950249105
- Item #: 9SIVB8UKDF9568
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For FSP DS600-G10 250W Switching Power Supply ...
- Model #: 744623298412
- Item #: 9SIVB8UKCU6436
- Return Policy: Magicpower Return Policy
Refurbished: 2200W Power Supply 876932-001 876933-301 876935-B21 HSTNS-PR64
- Model #: 753525943108
- Item #: 9SIVB8UKAA5253
- Return Policy: Magicpower Return Policy
Refurbished: EMC DS-4100B Power Supply MH995 DPSN-210BB AM 60-0200849-02
- Model #: 722954725531
- Item #: 9SIVB8UKAA7191
- Return Policy: Magicpower Return Policy
Refurbished: PMC30E-2 Original Disassembly Switching Power Supply 5V+-15V 30W ...
- Model #: 753525955866
- Item #: 9SIVB8UKAA8827
- Return Policy: Magicpower Return Policy
Refurbished: For GW-2UR550 2U 550W Server Redundant Power Cage
- Model #: 726727725087
- Item #: 9SIVRWKKXA2662
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 400W Power Supply MP4-1S-1L-00 73-540-0623
- Model #: 759950242557
- Item #: 9SIVB8UKDA8838
- Return Policy: Magicpower Return Policy
Refurbished: For RAW-6500P-R (ROHS) Switching Power Supply
- Model #: 722954721281
- Item #: 9SIVB8UKAA6781
- Return Policy: Magicpower Return Policy
Refurbished: For 02311DEP S5300V3 Storage Server PAC800D1205-CE 800W
- Model #: 726727775952
- Item #: 9SIVRWKKXA5072
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Power Supply For S8VM 24V27A 600W Power Supply S8VM-60024C
- Model #: 759950248481
- Item #: 9SIVB8UKDF9470
- Return Policy: Magicpower Return Policy
Refurbished: For 550W server power supply S15-550P1A power supply S550E003L 1pcs
- Model #: 752804578901
- Item #: 9SIVRWKKXB2292
- Return Policy: Nytke team Return Policy
Refurbished: SWS100-12 For TDK Industrial Medical Equipment Power Supply 12V/8.5A
- Model #: 724780779184
- Item #: 9SIVB8UKAA6711
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For B200M4 Control Module UCS-IOM-2208XP UCS 2204XP 68-3718-06
- Model #: 716837096207
- Item #: 9SIVB8UKX62725
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 510S M420 700-24AGR 6Pin 260W Power Supply PA-1261-7 ...
- Model #: 744623299075
- Item #: 9SIVB8UKCU6559
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For TQW14A-48S12-R 100-240VAC
- Model #: 753525989755
- Item #: 9SIVB8UKAA7783
- Return Policy: Magicpower Return Policy
Refurbished: For FSP 650W Industrial Computer Server Power Supply FSP650-80GLC
- Model #: 703454717493
- Item #: 9SIVB8UKAJ6174
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 500W power module PSC500-A YM-2501BAR WOPSA5000 ...
- Model #: 745635673983
- Item #: 9SIVB8UKD64794
- Return Policy: Magicpower Return Policy
Refurbished: NSR-251 Network Machine Server Power Supply 250W
- Model #: 722954722370
- Item #: 9SIVB8UKAA6869
- 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 EVHB500A-24S-Coil 24DC/500A Relay
- Model #: 792597719808
- Item #: 9SIVRWKKXD7644
- Return Policy: Nytke team Return Policy
Refurbished: For 8-pin large power supply 290W desktop power supply P2W4R HYV3H KGF74 ...
- Model #: 752804572695
- Item #: 9SIVRWKKXA2137
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO PMT 12V6A 75W Power Supply PMT-12V75W2BA
- Model #: 759950247699
- Item #: 9SIVB8UKDF9447
- Return Policy: Magicpower Return Policy
Refurbished: CRPS 220W Switching Power Supply M1Y-2222G
- Model #: 753525943832
- Item #: 9SIVB8UKAA5296
- 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.
