Power Supplies - Showing 2185 - 2208 of 17995 Products
Refurbished: KHACHIMO Workstation P720 P520 900W Switching Power Supply DPS-900EB A ...
- Model #: 744623301617
- Item #: 9SIVB8UKCV8175
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for VF-D320-D512A-CFSAC/DC CONVERTER 5V 12V 320W
- Model #: 792597720514
- Item #: 9SIVRWKKXD7833
- Return Policy: Nytke team Return Policy
Refurbished: For FSP1300-20FM server power supply 1300W 9PA13A0300
- Model #: 726099253652
- Item #: 9SIVRWKKXD1937
- Return Policy: Nytke team Return Policy
Refurbished: For PRTEM 48V 25A Power Supply For SMDC1204
- Model #: 753525989984
- Item #: 9SIVB8UKAA7824
- Return Policy: Magicpower Return Policy
Refurbished: For POWEREX REX III 500W Switching Power Supply REX III V.3
- Model #: 753525935998
- Item #: 9SIVB8UKA99440
- Return Policy: Magicpower Return Policy
Refurbished: DPS-770GB A Switching Power Supply DPS-770AB-1A
- Model #: 722954733482
- Item #: 9SIVB8UKAA5976
- Return Policy: Magicpower Return Policy
Refurbished: For psm-6600pe Server Medical Industrial Computer 600w Power Supply
- Model #: 722954730245
- Item #: 9SIVB8UKAA5582
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO SFX ITX MATX Rated 550W Peak 650W Switching Power Supply ...
- Model #: 744623306254
- Item #: 9SIVB8UKD01972
- Return Policy: Magicpower Return Policy
Refurbished: T310 Server Power Supply A400EF-S0 D400EF-S0 R101K N884K 400W
- Model #: 722954734175
- Item #: 9SIVB8UKAA6005
- Return Policy: Magicpower Return Policy
Refurbished: 078-000-050078-000-054078-000-049078-000-086078-000-051
- Model #: 722954732898
- Item #: 9SIVB8UKAA5889
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO DVR NVR 20Pin SATA*8 150W Power Supply DPS-150AB-3 A ...
- Model #: 726099221620
- Item #: 9SIVB8UKCU6101
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO DC 280W Power Supply PSR05-D
- Model #: 759950249303
- Item #: 9SIVB8UKDF9581
- Return Policy: Magicpower Return Policy
Refurbished: 80plus Bronze 430W Switching Power Supply SS-430GB Active PFC F3 ...
- Model #: 753525942590
- Item #: 9SIVB8UKAA5163
- Return Policy: Magicpower Return Policy
Refurbished: For YM-5681H YM-2681H Server 700W Power Module
- Model #: 752804577027
- Item #: 9SIVRWKKXB2147
- Return Policy: Nytke team Return Policy
Refurbished: HP EliteDesk 800 G2 SFF Power Supply 200w PSU- 901912-003 901912-004
- Model #: 981-754125000223433
- Item #: 9SIVSYTKUT6032
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: LE0MPSD16 1600W 02316867
- Model #: 724780182939
- Item #: 9SIVB8UKA98963
- Return Policy: Magicpower Return Policy
Refurbished: WS-CAC-3000W WS-CAC-6000W power supply
- Model #: 703454721445
- Item #: 9SIVB8UKAJ6584
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO XPS 7100 8300 8500 R5 R6 460W Power Supply 7P3WV 02Y8X1 ...
- Model #: 744623314983
- Item #: 9SIVB8UKD21934
- Return Policy: Magicpower Return Policy
Refurbished: M920 M820z Power Supply APH003 ELOG SP50H29541 00PC763 PA-1151-5
- Model #: 722954987472
- Item #: 9SIVB8UKAA6469
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for W03100G U1A-Q11200-DRBB AS2150G2 AS5300G2 AS5500 G2 ...
- Model #: 792597704958
- Item #: 9SIVRWKKXD2639
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for 100-809-008 2200W 078-000-050
- Model #: 716837083375
- Item #: 9SIVB8UKX57600
- Return Policy: Magicpower Return Policy
Refurbished: ZXD3000(V5.1) 53.5V 3000W
- Model #: 753525958089
- Item #: 9SIVB8UKAA9030
- Return Policy: Magicpower Return Policy
Refurbished: For FAST200 Controller 19K1115 IBM Fast200
- Model #: 726727728439
- Item #: 9SIVRWKKXA2689
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 1U server power supply PWS-203-1H 5018A-FTN4 200W
- Model #: 716837082880
- Item #: 9SIVB8UKX57507
- 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.
