Power Supplies - Showing 1969 - 1992 of 17933 Products
Refurbished: 1pcs for C3KX-NM-10G 3560X 3750X 4Port 2x1/10Gb SFP+ 2x1Gb SFP
- Model #: 792597726714
- Item #: 9SIVRWKKXD9754
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 380 388 G6 G7 G8 460W Power Supply DPS-460MB A HSTNS-PD28 ...
- Model #: 744623299655
- Item #: 9SIVB8UKCU6651
- Return Policy: Magicpower Return Policy
Refurbished: R910 1100W Power Supply L1100A-S0 PS-2112-2D1-LF 0TCVRR
- Model #: 722954723766
- Item #: 9SIVB8UKAA7022
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for S6780-H switching power module PAC2KS12-PB- 02314LFR
- Model #: 792597719686
- Item #: 9SIVRWKKXD7648
- Return Policy: Nytke team Return Policy
Refurbished: 350W Switching Power Supply ATX-1235GA1
- Model #: 753525936995
- Item #: 9SIVB8UKA99531
- Return Policy: Magicpower Return Policy
Refurbished: PE1750 Server Power Supply, 1750 PS-2321-1,0M1662 320W
- Model #: 722954725524
- Item #: 9SIVB8UKAA7187
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 550W Power Supply 800 G5 Z1 G6 PCK026 L75200-004-001 ...
- Model #: 792597706952
- Item #: 9SIVRWKKXD3453
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for C220 M5 UCSC-PSU-1050W V03 341-0638-01 Server Power Supply
- Model #: 792597725670
- Item #: 9SIVRWKKXD9520
- Return Policy: Nytke team Return Policy
Refurbished: For 300-1501/SUN V440 Server Power Supply DPS-680CB A ...
- Model #: 722954734366
- Item #: 9SIVB8UKAA6033
- Return Policy: Magicpower Return Policy
Refurbished: For R1IA2871A 875W Server Power Supply
- Model #: 726727734201
- Item #: 9SIVRWKKXA4052
- Return Policy: Nytke team Return Policy
Refurbished: GPR4815D Switching Power Supply Module
- Model #: 722954733130
- Item #: 9SIVB8UKAA5891
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 24V0.5A 10W Power Supply LCA10S-24 LCA10S
- Model #: 759950246500
- Item #: 9SIVB8UKDA9432
- Return Policy: Magicpower Return Policy
Refurbished: X206m X3200 Server Power Supply 7001084-y000 39y7280 39y7281
- Model #: 722954724053
- Item #: 9SIVB8UKAA7043
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for GW-CRPSD800 800W server power supply
- Model #: 716837093015
- Item #: 9SIVB8UKX61684
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for MPU150-4000 Industrial Medical Equipment Power Supply
- Model #: 792597985531
- Item #: 9SIVB8UKX57250
- Return Policy: Magicpower Return Policy
Refurbished: For DS800-G25 DPS-770GB A C B Power Module 770W 1pcs
- Model #: 726727725438
- Item #: 9SIVRWKKXA2592
- Return Policy: Nytke team Return Policy
Refurbished: For YM-6621BBR/AR YM-6621B YM-6621BA01R YH6621-XBA02R Power ...
- Model #: 752804574460
- Item #: 9SIVRWKKXB1871
- Return Policy: Nytke team Return Policy
Refurbished: For DS10 workstation power supply API0FS21 30-50454-03
- Model #: 752804573449
- Item #: 9SIVRWKKXB1697
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 2U 800W Switching Power Supply ENH-2180-1
- Model #: 744623314693
- Item #: 9SIVB8UKD21864
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 600 800 G2 6Pin 160W Power Supply PA-1161-2 DPS-160AB-5 A ...
- Model #: 744623308678
- Item #: 9SIVB8UKD06373
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for JPSU-1600W-AC-AFO 740-054405 QFX10002 Power Supply 1600W
- Model #: 792597704491
- Item #: 9SIVRWKKXD2461
- Return Policy: Nytke team Return Policy
Refurbished: For T5820 425W DPS-425FB A D425EF-03 3W8F7
- Model #: 792597703234
- Item #: 9SIVRWKKXD2303
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for EVR120CI-A Relay 120A, 24VDC Electric Vehicle Contactor
- Model #: 792597717989
- Item #: 9SIVRWKKXD6881
- Return Policy: Nytke team Return Policy
Refurbished: R48-3000e3 3000W High Efficiency Communication Power Module
- Model #: 753525986976
- Item #: 9SIVT8HKWF3042
- Return Policy: YunYunKeJiShiZhuangDian 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.
