Power Supplies - Showing 2377 - 2400 of 17997 Products
Refurbished: For EFRP-300 Power Supply 300W EFRP-300
- Model #: 726727817478
- Item #: 9SIVRWKKXB0853
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 1U 400W Switching Power Supply JCI-4011PP-1M1
- Model #: 744623313894
- Item #: 9SIVB8UKD21773
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO AT P8P9 PSII 300W Switching Power Supply RYT-450AT RYT-250AT
- Model #: 744623304014
- Item #: 9SIVB8UKCW6172
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for DZY-48/30HIV DZY-48/30HIII Communication Power Supply 48V 30A
- Model #: 792597720071
- Item #: 9SIVRWKKXD7658
- Return Policy: Nytke team Return Policy
Refurbished: 620W Switching Power Supply C2W-5620V C2W-3620V-R
- Model #: 753525942958
- Item #: 9SIVB8UKAA5243
- Return Policy: Magicpower Return Policy
Refurbished: For P2G-6460P 460W 2U Server Power Supply
- Model #: 726727725513
- Item #: 9SIVRWKKXA2631
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for GPR1800-56AH GRE 360-56A Power Module
- Model #: 792597723591
- Item #: 9SIVRWKKXD8752
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO E2800 E5700 DE6000H Power Supply 271-00061 X-00061-00 ...
- Model #: 759950244148
- Item #: 9SIVB8UKDA9091
- Return Policy: Magicpower Return Policy
Refurbished: For GW-CRPS550S-2H 2U Server 550W Redundant Power Supply
- Model #: 722954731365
- Item #: 9SIVB8UKAA5725
- Return Policy: Magicpower Return Policy
Refurbished: ST-P0350WA 350W 2U Server Industrial Computer Firewall Power Supply 300W
- Model #: 724780779580
- Item #: 9SIVB8UKAA6722
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for communication power supply AD701M12-2M1
- Model #: 792597985401
- Item #: 9SIVB8UKX57247
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for FSP350-701UJ 350W 1U ATX industrial computer server power supply
- Model #: 792597714315
- Item #: 9SIVRWKKXD5824
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 80plus Platinum Quanta D51PC-1U D52T-1U 700W Switching ...
- Model #: 744623308517
- Item #: 9SIVB8UKD06407
- Return Policy: Magicpower Return Policy
Refurbished: 320 7020 8020 9020 290W Power Supply HU290EM-00 L290EM-01 D290EM-00 ...
- Model #: 753525945133
- Item #: 9SIVB8UKA99598
- Return Policy: Magicpower Return Policy
Refurbished: Communication Power Module ETP48120
- Model #: 722954723322
- Item #: 9SIVT8HKWF3061
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1Pcs for 531A31-S4 communication power supply 1U48V60A 48-2000E3
- Model #: 716837095088
- Item #: 9SIVB8UKX62454
- Return Policy: Magicpower Return Policy
Refurbished: For U1A-A10550-DR 550W Redundant Module Power Supply
- Model #: 726727724585
- Item #: 9SIVRWKKXA2593
- Return Policy: Nytke team Return Policy
Refurbished: 750W power supply DeltaGPS-750AB A GPS-650GPS-550 power supply
- Model #: 703454723050
- Item #: 9SIVB8UKAJ6794
- Return Policy: Magicpower Return Policy
Refurbished: A5E30108836-I7 for Siemens cV3_ AC power supply
- Model #: 703454722442
- Item #: 9SIVB8UKAJ6699
- Return Policy: Magicpower Return Policy
Refurbished: For L220AS-00 H220AS-00 3647 660S V270S D06S PS-5221-6-8-9
- Model #: 726727732160
- Item #: 9SIVRWKKXA3413
- Return Policy: Nytke team Return Policy
Refurbished: PBA1500F-48 Original Disassembly Miniaturized High Power Thin Power ...
- Model #: 753525987430
- Item #: 9SIVB8UKAA8757
- Return Policy: Magicpower Return Policy
Refurbished: For HWS1500-24 Power Supply/Module AC/DC CONVERTER 24V 1500W
- Model #: 752804577782
- Item #: 9SIVRWKKXB2219
- Return Policy: Nytke team Return Policy
Refurbished: PE4600 Server Power 7000240-0001/0003, HD444 R0910
- Model #: 722954735219
- Item #: 9SIVB8UKAA6116
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO NAS Small 1U A4 K39 S3 D01 550 1650 GTX1050 Rated 250W Peak ...
- Model #: 744623313382
- Item #: 9SIVB8UKD21740
- 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.
