Power Supplies - Showing 1921 - 1944 of 17942 Products
Refurbished: 800W Switching Power Supply NEPS800-A
- Model #: 753525936711
- Item #: 9SIVB8UKA99476
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 74Y9340 74Y6870 P72 P740 Array Card Battery
- Model #: 792597722457
- Item #: 9SIVRWKKXD8436
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO EX2300 100W Power Supply DPSN-100MP B 740-027360
- Model #: 759950243769
- Item #: 9SIVB8UKDA9004
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For Z8 Fury G5 R20-1K1P1A M47645-001 M25919-001
- Model #: 792597704149
- Item #: 9SIVRWKKXD2523
- Return Policy: Nytke team Return Policy
Refurbished: 500W Small 1U ITX HTPC FLEX M1 K39 K49 M41 Small Chassis Power Supply
- Model #: 722954732645
- Item #: 9SIVB8UKAA5846
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 460W Power Supply FSP460-60PFG FSP460-60GLC ...
- Model #: 744623306063
- Item #: 9SIVB8UKD01973
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for Server Power 980W PWS-982P-1R Power Module
- Model #: 792597712533
- Item #: 9SIVRWKKXD4743
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Power Module For LINEAGE POWER 12V18A Power Supply ...
- Model #: 759950246081
- Item #: 9SIVB8UKDA9367
- Return Policy: Magicpower Return Policy
Refurbished: R48-3000e3 3000W High Efficiency Communication Power Module
- Model #: 753525986976
- Item #: 9SIVT8HKWF3042
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: KHACHIMO B2600 320W Switching Power Supply DPS-320EB C 0950-4051
- Model #: 744623315461
- Item #: 9SIVB8UKD46415
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 400W Switching Power Supply LL1U400APFC
- Model #: 744623313979
- Item #: 9SIVB8UKD21816
- Return Policy: Magicpower Return Policy
Refurbished: For 3020 7020 9020 SFF Power Supply HU255ES-01 AC255ES-00 D255AS-00
- Model #: 726727732269
- Item #: 9SIVRWKKXA3523
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for FSP650-80GLC 650W 9PA6500102/3 s5000XVN/XSL industrial ...
- Model #: 792597711017
- Item #: 9SIVRWKKXD4387
- Return Policy: Nytke team Return Policy
Refurbished: SM31G For Annet Communication Power System Monitoring
- Model #: 753525958126
- Item #: 9SIVB8UKAA9043
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply S8FS-G15015CD For 150W 15V AC100240V
- Model #: 753525988970
- Item #: 9SIVB8UKAA7714
- Return Policy: Magicpower Return Policy
Refurbished: For Communication Power Module PSR1800-56D
- Model #: 722954726736
- Item #: 9SIVT8HKWF3259
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1Pcs for 135D 150 200 215 370 470 490D Power Master Switch Relay
- Model #: 792597719129
- Item #: 9SIVRWKKXD7340
- Return Policy: Nytke team Return Policy
Refurbished: R520 G7 Server Power Backplane DD-3151-3F-LF 4A807-02
- Model #: 722954987205
- Item #: 9SIVB8UKAA6460
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for VNX5200 SG9006 071-000-539-00 071-000-733 Expansion Cabinet ...
- Model #: 792597724482
- Item #: 9SIVRWKKXD8932
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for NF8560 M2 Server 1400W Redundant Power Module PWS-1K41F-1R
- Model #: 792597985494
- Item #: 9SIVB8UKX57234
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 4028 4029 GR-TR PWS-2K03P/2K05A-1R 2000W Power Supply ...
- Model #: 792597709380
- Item #: 9SIVRWKKXD3997
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS For FSP1600-20FM 1600W server power supply
- Model #: 792597703593
- Item #: 9SIVRWKKXD2285
- Return Policy: Nytke team Return Policy
Refurbished: 1U 400W Switching Power Supply FSP400-70LQ
- Model #: 753525946062
- Item #: 9SIVB8UKA99669
- Return Policy: Magicpower Return Policy
Refurbished: TDK-LAMBDA JWS300 6V50A 300W Power Supply JWS300-6
- Model #: 703454715536
- Item #: 9SIVB8UKAJ5959
- 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.
