Power Supplies - Showing 2377 - 2400 of 17939 Products
Refurbished: 1PCS for DL360P 380P G8 Server, Power Supply 460W HSTNS-PL28 ...
- Model #: 792597705641
- Item #: 9SIVRWKKXD2889
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO GSR12000 2500W For 12000/16-AC-PEM 341-0123-02 ...
- Model #: 759950240959
- Item #: 9SIVB8UKDA0454
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 3010 7010 9010 390 790 990 240W Power Supply H240AS-00 ...
- Model #: 744623306346
- Item #: 9SIVB8UKD01966
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 790 990 390 3010 7010 220 620 260 3800 200 540 530 545 560 580 ...
- Model #: 744623301310
- Item #: 9SIVB8UKCV8103
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For ENHANCE 1U 220W Power Supply ENP-2322B
- Model #: 759950242694
- Item #: 9SIVB8UKDA8845
- Return Policy: Magicpower Return Policy
Refurbished: SYPM4KI For APC Symmetra-LX UPS Power Supply
- Model #: 753525949391
- Item #: 9SIVB8UKAA0074
- Return Policy: Magicpower Return Policy
Refurbished: 1469490000 PRO ECO 240W 24V 10A DIN-Rail Power Supply Switching Power ...
- Model #: 724780183646
- Item #: 9SIVB8UKA99004
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 8100 8910 8700 T3630 T3640 T3650 460W Switching Power Supply ...
- Model #: 759950248917
- Item #: 9SIVB8UKDF9542
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for SMU02B SMU02B1 SMU02C power monitoring
- Model #: 716837093411
- Item #: 9SIVB8UKX61696
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 300-2158 X4640 X4600 M2 T5440 Power Supply 1133W ...
- Model #: 792597712922
- Item #: 9SIVRWKKXD4844
- Return Policy: Nytke team Return Policy
Refurbished: PLA50F-24-N1 For COSEL 50W INPUT AC100-240V 50-60Hz 0.7A OUTPUT 24V ...
- Model #: 753525948523
- Item #: 9SIVB8UKAA0009
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for R4850G2 communication power supply 48V50A 3000W
- Model #: 716837093763
- Item #: 9SIVB8UKX61926
- Return Policy: Magicpower Return Policy
Refurbished: MER048-50A Communication Power Rectifier Module MER048-50010-RB/RD
- Model #: 753525954883
- Item #: 9SIVT8HKWF2638
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1Pcs for SM-48100B1 48V100AH SmartLi -48-100 lithium
- Model #: 716837093527
- Item #: 9SIVB8UKX61925
- Return Policy: Magicpower Return Policy
Refurbished: Fo FSP400-60PFG 400W Research China Industrial Computer Power Supply
- Model #: 722954737503
- Item #: 9SIVB8UKAA6397
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 600 680 800 880 G2 280W Power Supply PCE015 PCE016 ...
- Model #: 744623313627
- Item #: 9SIVB8UKD21783
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for T4900D T6900C M4900 m6900 desktop host 10 pins, power supply ...
- Model #: 792597715596
- Item #: 9SIVRWKKXD6236
- Return Policy: Nytke team Return Policy
Refurbished: For 19K1164 AA20910 350W EXP200 EXP500
- Model #: 726727725223
- Item #: 9SIVRWKKXA2582
- Return Policy: Nytke team Return Policy
Refurbished: 600G3 SFF Power Supply PCC005 901764-004 901765-001 180w
- Model #: 722954733871
- Item #: 9SIVB8UKAA5981
- Return Policy: Magicpower Return Policy
Refurbished: B320I B325 B520E B340 750 10088 HKF2502-3A Power Supply 250W
- Model #: 722954726828
- Item #: 9SIVB8UKAA7359
- Return Policy: Magicpower Return Policy
Refurbished: ADA600F-24 Switching Power Supply 600W 24V 15A
- Model #: 724780182380
- Item #: 9SIVB8UKA98889
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 7932N 7916N Recorder POE Power Supply FSP350-20GSV ...
- Model #: 792597982677
- Item #: 9SIVB8UKX56794
- Return Policy: Magicpower Return Policy
Refurbished: For N2Power XL160-1DC S124 100-160W Power Module
- Model #: 753525933383
- Item #: 9SIVB8UKA99147
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for VNX52 5400/5600/7600 Server Power Supply 071-000-036 SGA005 ...
- Model #: 716837097723
- Item #: 9SIVB8UKX63000
- 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.
