Power Supplies - Showing 2281 - 2304 of 18222 Products
Refurbished: For R1CA2551A/B 1620-G2 550W server power supply
- Model #: 752804577263
- Item #: 9SIVRWKKXB2140
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 3090 5090 7080 7090 power supply 260W 6P 4P 4P interface
- Model #: 792597984008
- Item #: 9SIVB8UKX56981
- Return Policy: Magicpower Return Policy
Refurbished: For R230 R240 Power Supply 0P59VM D250E-S0
- Model #: 726727725063
- Item #: 9SIVRWKKXA2628
- Return Policy: Nytke team Return Policy
Refurbished: 1 PCS XR1648B Communication Power Module For POWER ONE
- Model #: 753525934144
- Item #: 9SIVT8HKWF2805
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: KHACHIMO Power Supply 400W Switching Power Supply P2H-5400V
- Model #: 744623303987
- Item #: 9SIVB8UKCW6160
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 200 220 560 580 530 240W Power Supply HK340-71FP PS-5241-04 ...
- Model #: 744623301921
- Item #: 9SIVB8UKCV8196
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for A1289 980W Power Supply FS8001 614-0435 614-0454 DPS-980BB
- Model #: 716837082859
- Item #: 9SIVB8UKX57495
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FSP300-70PFL (SK) Industrial Control Power Supply PN452209057981
- Model #: 716837091110
- Item #: 9SIVB8UKX61063
- Return Policy: Magicpower Return Policy
Refurbished: For 3Y YM-2301H YH-5301C HAR Server Redundant Power Module 300W
- Model #: 722954728204
- Item #: 9SIVSY0KUS4010
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1Pcs for C3850-NM-2-10G 2 port 3850 machine
- Model #: 792597726479
- Item #: 9SIVRWKKXD9610
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for GW-CRPS550/N/N2 550W server power supply
- Model #: 792597716845
- Item #: 9SIVRWKKXD6714
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO CT 300W Switching Power Supply MHG2-6300P B00MHG2300012
- Model #: 744623297941
- Item #: 9SIVB8UKCU6392
- Return Policy: Magicpower Return Policy
Refurbished: PSU For FSP Replace Etasis 9277CPSU-0010 200W Power Supply EFAP-200 ...
- Model #: 753525935035
- Item #: 9SIVB8UKA99314
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO ITX 150W Switching Power Supply FSP150-50FGNBI
- Model #: 744623311555
- Item #: 9SIVB8UKD12236
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO V440 680W Switching Power Supply DPS-680CB A 300-1851 ...
- Model #: 744623304328
- Item #: 9SIVB8UKCW6196
- Return Policy: Magicpower Return Policy
Refurbished: For 470 450 D1257 H2370 D550P-00 DPS-550DB A Server Power Supply
- Model #: 726727774436
- Item #: 9SIVRWKKXA4043
- Return Policy: Nytke team Return Policy
Refurbished: For CPCI-A-3U-300C telkoor CPCI ac -3u-300W CPCIac-3u-300
- Model #: 726727723977
- Item #: 9SIVRWKKXA2549
- Return Policy: Nytke team Return Policy
Refurbished: For LSQM1DC650 H3C PSR650D Power Module 650W
- Model #: 722954729812
- Item #: 9SIVTFFKXZ7537
- Return Policy: Zienroylein Return Policy
Refurbished: 150W Switching Power Supply PAC150-WA
- Model #: 753525941678
- Item #: 9SIVB8UKAA4998
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for TF830-V050-1 TK630-V050-01 TFXH5181 power supply
- Model #: 792597982684
- Item #: 9SIVB8UKX56798
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 1064W FAS6080 Server Power Supply 856-851130-001 P3R034
- Model #: 716837097587
- Item #: 9SIVB8UKX62991
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 4.2V60A 300W Switching Power Supply GW-RSP300WV4.2
- Model #: 744623316635
- Item #: 9SIVB8UKD46507
- Return Policy: Magicpower Return Policy
Refurbished: DZY-48/30HIII 48V 30A Communication Power Rectifier Module
- Model #: 753525986815
- Item #: 9SIVT8HKWF3057
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1PCS for ATX180-20HUC small 1U power supply, game console/+ 48V power ...
- Model #: 792597716036
- Item #: 9SIVRWKKXD6388
- Return Policy: Nytke team 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.
