Power Supplies - Showing 1945 - 1968 of 17979 Products
Refurbished: For N2K-PAC-200W Power Supply NEXUS 2000 Series
- Model #: 726727722710
- Item #: 9SIVRWKKXA2274
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 260W H260EBM-01 3090 7090MT Dual 4-pin CPU
- Model #: 792597984282
- Item #: 9SIVB8UKX57086
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO AIO ITX Flex POS Small 1U 220W Switching Power Supply ...
- Model #: 744623314327
- Item #: 9SIVB8UKD21811
- Return Policy: Magicpower Return Policy
Refurbished: 1U 600W Switching Power Supply PWS-601-1H
- Model #: 753525941586
- Item #: 9SIVB8UKAA5010
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for FSP180-50PLA power supply
- Model #: 792597707928
- Item #: 9SIVRWKKXD3708
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 2U 500W Switching Power Supply P2G-5500V
- Model #: 744623305554
- Item #: 9SIVB8UKD01925
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 3010 7010 9010 790 390 SFF Power Supply H240AS-00 AC240AS-00
- Model #: 716837089797
- Item #: 9SIVB8UKX60490
- Return Policy: Magicpower Return Policy
Refurbished: ML350G2 Server Power supply, PS-5351-1249687-001243406-001
- Model #: 722954734564
- Item #: 9SIVB8UKAA6067
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO RS500 I610r-G 600W Power Supply TDPS-600CB G
- Model #: 744623299440
- Item #: 9SIVB8UKCU6613
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for XPS 8950 R13 R14 300W 400W 460W Power Supply 0389MC
- Model #: 716837091714
- Item #: 9SIVB8UKX61148
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply ST-550PAP 550W
- Model #: 722954735370
- Item #: 9SIVB8UKAA6130
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For DL580G5 Server Power Supply DPS-1200FBA 438202-002 ...
- Model #: 752804572022
- Item #: 9SIVRWKKXA2069
- Return Policy: Nytke team Return Policy
Refurbished: For X345 Server Power Cage 514W 74P4415 74P4416
- Model #: 726727725292
- Item #: 9SIVRWKKXA2538
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 400 480 G4 600 680 G3 800 880 G3 4Pin 310W Power Supply ...
- Model #: 744623303000
- Item #: 9SIVB8UKCW6049
- Return Policy: Magicpower Return Policy
Refurbished: T5600 T5610 Workstation Power Supply 825W G57YP CVMY8 D825EF-00/01
- Model #: 722954725517
- Item #: 9SIVB8UKAA7183
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 400W Medical Power Supply TMPC-400 FSP400-70MP
- Model #: 726099223068
- Item #: 9SIVB8UKCU6331
- Return Policy: Magicpower Return Policy
Refurbished: For MKAC-96-248000M 24v8A 8000MA
- Model #: 722954721410
- Item #: 9SIVB8UKAA6784
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For Power-One 375W Power Supply PFC375-4000M
- Model #: 759950241864
- Item #: 9SIVB8UKDA8745
- Return Policy: Magicpower Return Policy
Refurbished: NP370D NP370G2HR LITEON PS-5651-1C 650W Server Power Supply
- Model #: 722954735158
- Item #: 9SIVB8UKAA6090
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs For EFRP-2553V1 EFRP-553V1 Server Power 550W
- Model #: 716837098768
- Item #: 9SIVB8UKZ25004
- Return Policy: Magicpower Return Policy
Refurbished: Workstation P700 P710 P500 P510 PS-3651-1L-LF 54Y8908 MAX 650W Power ...
- Model #: 722954987823
- Item #: 9SIVSYTKUT2422
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: For C240/C220 M3 Power Supply UCSC-PUS-650W V02 PS - 2651-1 - LF
- Model #: 726727818086
- Item #: 9SIVRWKKXB0998
- Return Policy: Nytke team Return Policy
Refurbished: For ENR-1180 server 800W
- Model #: 703454722718
- Item #: 9SIVB8UKAJ6762
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for FSP250w SFX power supply, mini itx desktop small power supply MATX
- Model #: 792597706372
- Item #: 9SIVRWKKXD3210
- Return Policy: Nytke team 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.
