Power Supplies - Showing 1993 - 2016 of 17942 Products
Refurbished: For C2W-3820V-R Industrial Computer Equipment Power Module
- Model #: 722954723902
- Item #: 9SIVB8UKAA7032
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1200W Power Supply PWS-1K22A-1R
- Model #: 759950243141
- Item #: 9SIVB8UKDA8918
- Return Policy: Magicpower Return Policy
Refurbished: M1P-2500V (ROHS) P/N:B013950003 500W Server Power Supply
- Model #: 753525949834
- Item #: 9SIVB8UKAA0159
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for R1CA2122A APM12V0104 Server Redundant Power Supply 1200W
- Model #: 792597724987
- Item #: 9SIVRWKKXD9081
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for 1200W 078-000-063 078-000-064 078-000-084 078-000-085
- Model #: 716837098126
- Item #: 9SIVB8UKX63085
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for HDS HUS130 HUS150 Expansion Cabinet Power Supply 600W ...
- Model #: 792597722594
- Item #: 9SIVRWKKXD8432
- Return Policy: Nytke team Return Policy
Refurbished: For FLATPACK2 24 1800HE 241115.205 Communication Power Rectifier ...
- Model #: 753525988178
- Item #: 9SIVT8HKWF3052
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1Pcs for PWS-1K25P-PQ 1200W power supply, workstation, medical power ...
- Model #: 716837082835
- Item #: 9SIVB8UKX57488
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For R-Senda IP 2U 500W Switching Power Supply SD-5500U2P
- Model #: 744623303109
- Item #: 9SIVB8UKCW6044
- Return Policy: Magicpower Return Policy
Refurbished: 600G3 SFF Power Supply PCC005 901764-004 901765-001 180w
- Model #: 722954733871
- Item #: 9SIVB8UKAA5981
- Return Policy: Magicpower Return Policy
Refurbished: For 550W GW-CRPS 2UPS550 Server Dual Power Supply
- Model #: 722954732324
- Item #: 9SIVB8UKAA5820
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSLP1453 Power Supply Unit
- Model #: 745635673853
- Item #: 9SIVB8UKD64792
- Return Policy: Magicpower Return Policy
Refurbished: For 0957-2198 2320 RX3600 RX4640 RX6600 Power Supply
- Model #: 731029999210
- Item #: 9SIVRWKKXD1138
- Return Policy: Nytke team Return Policy
Refurbished: For power supply PWS-1K25P-PQ 1200W DPS-1200QB
- Model #: 726099252914
- Item #: 9SIVRWKKXD1833
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for DPS-500GB R/DPS-650XB-2C 1U Industrial Computer Server Power ...
- Model #: 792597715626
- Item #: 9SIVRWKKXD6256
- Return Policy: Nytke team Return Policy
Refurbished: D3000E-S0 Server Power Supply 5PDWG 3000W
- Model #: 722954721540
- Item #: 9SIVSY0KUU1791
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: Power Supply PW-300ATXE-12V-AP Power Supply 300W
- Model #: 753525932966
- Item #: 9SIVSYTKUT6647
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: uMP4T-S2F-S2L-S2Q-IQQ-00 MICR MP Series Power Module
- Model #: 753525947885
- Item #: 9SIVB8UKA99957
- Return Policy: Magicpower Return Policy
Refurbished: DCJ17001-01P PWR-MX960-AC-S-C SRX5600 SRX5800 AC Power Supply
- Model #: 724780183615
- Item #: 9SIVB8UKA99038
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO S280S S28S S4250 S4700 S4800 S5200 500 260W Power Supply ...
- Model #: 744623306995
- Item #: 9SIVB8UKD06358
- Return Policy: Magicpower Return Policy
Refurbished: E73z M83z M93z m7100z m7120z m7131z 7200 s3040 S510 150W Power ...
- Model #: 753525934809
- Item #: 9SIVB8UKA99273
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for EHG2-6400F Server Industrial Power Supply 99-121V
- Model #: 792597715466
- Item #: 9SIVRWKKXD6228
- Return Policy: Nytke team Return Policy
Refurbished: For RG-PA2700I Communication Power Module
- Model #: 722954728150
- Item #: 9SIVT8HKWF3233
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: ES02PSD16 S7703 S7706 S7712 Series 1600W DC Power Module 02310NKX
- Model #: 753525954210
- Item #: 9SIVB8UKAA0199
- 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.
