Power Supplies - Showing 1921 - 1944 of 17942 Products
Refurbished: E74S E75S e700 H3060 G5060 M310 M410 M610 M90 m700 10Pin 210W ...
- Model #: 753525935165
- Item #: 9SIVB8UKA99313
- Return Policy: Magicpower Return Policy
Refurbished: AD48/30-B 53.5V/30A For VAPEL Communication Power Rectifier Module
- Model #: 753525955392
- Item #: 9SIVT8HKWF2834
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: For Z800 Z820 Z840 Power Supply DPS-1050DB A DPS-850AB-1 A DPS-850DB A
- Model #: 726727733136
- Item #: 9SIVRWKKXA3670
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for monitoring power supply DS-7932N-K4 video recorder SFXA5061B ...
- Model #: 716837088868
- Item #: 9SIVB8UKX60101
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO AT With Switch P8P9 300W Switching Power Supply PP-300V ...
- Model #: 726099221668
- Item #: 9SIVB8UKCU6117
- Return Policy: Magicpower Return Policy
Refurbished: For WIN-TACT WP507F12 1U Power Supply 400W
- Model #: 752804578161
- Item #: 9SIVRWKKXB2243
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO M610 M1000 2360W Power Supply A2360P-00 7001333-J100 OR ...
- Model #: 744623298504
- Item #: 9SIVB8UKCU6475
- Return Policy: Magicpower Return Policy
Refurbished: For PWS-652-2H 2U Server Power 650W PWS-652-2H
- Model #: 726727724547
- Item #: 9SIVRWKKXA2579
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for VNX5100 VNX5300 Power Module SG7008 400W
- Model #: 792597723195
- Item #: 9SIVRWKKXD8782
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO B520E B320I B540 8Pin*2 280W Power Supply APH005 ...
- Model #: 744623302188
- Item #: 9SIVB8UKCV8207
- Return Policy: Magicpower Return Policy
Refurbished: For HSP960-D1205A S5300V3 5500V3 960W Power Supply 02310TBR ...
- Model #: 726727816808
- Item #: 9SIVRWKKXB0655
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS For 0Y5W2H 033K6J SP-PCM02-HE580-AC 1001661-05 584W power ...
- Model #: 716837095576
- Item #: 9SIVB8UKX62615
- Return Policy: Magicpower Return Policy
Refurbished: 3000W Switching Power Supply R48-3000A3
- Model #: 753525942644
- Item #: 9SIVB8UKAA5184
- Return Policy: Magicpower Return Policy
Refurbished: RP5700 PS-6241-02HD 445102-002 578189-001 Power Supply 240W
- Model #: 722954728938
- Item #: 9SIVB8UKAA5498
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for DL380G5 Power Supply DPS-800GB A HSTNS-PR05 403781-001 ...
- Model #: 792597705528
- Item #: 9SIVRWKKXD2719
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply DPS-300AB-101A DPS-300AB-81B
- Model #: 722954721199
- Item #: 9SIVB8UKAA6791
- Return Policy: Magicpower Return Policy
Refurbished: 450W Power Supply GPS-450AA-101 A GPS-450AA-101A
- Model #: 722954989940
- Item #: 9SIVB8UKAJ5730
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 45E1127 45E1126 45E1125 45E1124 45E1556 LTO4
- Model #: 792597713356
- Item #: 9SIVRWKKXD4928
- Return Policy: Nytke team Return Policy
Refurbished: PSU For Netapp DS2246 750W Power Supply TDPS-750AB A CA07336-C141 ...
- Model #: 703454718513
- Item #: 9SIVB8UKAJ6295
- Return Policy: Magicpower Return Policy
Refurbished: For K2Q35-63001 809805-001 3PAR 8200 power supply module
- Model #: 726727821437
- Item #: 9SIVRWKKXB1540
- Return Policy: Nytke team Return Policy
Refurbished: Small 1U 650W Power Supply SSP-651FCP5
- Model #: 703454715475
- Item #: 9SIVB8UKAJ5913
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For 3Y 650W Power Supply YM-2651R
- Model #: 759950243196
- Item #: 9SIVB8UKDA8939
- Return Policy: Magicpower Return Policy
Refurbished: DPR48/50-D-DCE Rectifier Communication Monitoring Power Module ...
- Model #: 753525984026
- Item #: 9SIVT8HKWF2830
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: For ATX-250SD Computer Industrial Control Host Server Desktop Power Supply ...
- Model #: 722954729270
- Item #: 9SIVSY0KUR7834
- Return Policy: LiAnMengYuShangDian 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.
