Power Supplies - Showing 2377 - 2400 of 17943 Products
Refurbished: For F5 FND850-S101G DC Power Supply Pwr-0149-02 6900/8900/8950
- Model #: 722954729478
- Item #: 9SIVB8UKAA5567
- Return Policy: Magicpower Return Policy
Refurbished: For YM-7501B Rack Server 2U 500W Power Supply
- Model #: 726727734188
- Item #: 9SIVRWKKXA4067
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO PSU For Roeyuta AT P8P9 PSII 230W Switching Power Supply ...
- Model #: 744623299822
- Item #: 9SIVB8UKCU6622
- Return Policy: Magicpower Return Policy
Refurbished: PELCO VCD5000 400W Power Supply EFAP-402
- Model #: 753525946536
- Item #: 9SIVB8UKA99755
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for R19-2K0P1XA server power supply 12V, 2000W redundant power ...
- Model #: 792597721191
- Item #: 9SIVRWKKXD8168
- Return Policy: Nytke team Return Policy
Refurbished: ML330 G3 PS-5032-2V3 319640-001 324714-001 300W Server Power Supply
- Model #: 724780183479
- Item #: 9SIVB8UKA99031
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for D120S V1300N S2600 700W Power Supply 021308068 ...
- Model #: 716837097570
- Item #: 9SIVB8UKX62987
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for B730E B530E S540 G540 PAC180S12-C Power Supply 180W Upgraded ...
- Model #: 792597707386
- Item #: 9SIVRWKKXD3565
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply PS2783
- Model #: 753525942170
- Item #: 9SIVSYTKUS9578
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: 3650M5 M4 550W 900W 94Y8110 43X3312 12V 45A Server Power Supply
- Model #: 722954724336
- Item #: 9SIVB8UKAA7104
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for SFF Power Supply H180AS-00 H180EBS-00 D180ES HU180NS ...
- Model #: 716837089230
- Item #: 9SIVB8UKX60295
- Return Policy: Magicpower Return Policy
Refurbished: For power supply MTW-5660V 660W MTW-5661V
- Model #: 726727723922
- Item #: 9SIVRWKKXA2527
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 180W Switching Power Supply PA-1181-5 00PC764 ...
- Model #: 744623312156
- Item #: 9SIVB8UKD19667
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO LED PSU For INVENTRONICS 14-36V 96W Power Supply ...
- Model #: 744623307077
- Item #: 9SIVB8UKD06342
- Return Policy: Magicpower Return Policy
Refurbished: For ir358 608 i1345 3550 HK280-86FP FSP180-50PLV/NPL PC9028/9029
- Model #: 726727733860
- Item #: 9SIVRWKKXA3869
- Return Policy: Nytke team Return Policy
Refurbished: For SKYNET 5V 9.5A Power Supply For SNP-Y066
- Model #: 753525990737
- Item #: 9SIVB8UKAA7926
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for SG6016 95P3651 95P3650 B1015 Supply 7214-1U2 Power Supply
- Model #: 792597984503
- Item #: 9SIVB8UKX57084
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1000W Power Supply SP50H29588 FSK001 DPS-1000AB-12 A ...
- Model #: 744623306476
- Item #: 9SIVB8UKD06248
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 00Y4643 00Y4594 90Y7689 44X3320
- Model #: 716837098034
- Item #: 9SIVB8UKX63074
- Return Policy: Magicpower Return Policy
Refurbished: 6505 6510 150W Switching Power Supply 7001485-J000 23-0000092-02 ...
- Model #: 753525936315
- Item #: 9SIVB8UKA99418
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 250W Switching Power Supply API6PC05 HK350-55BP
- Model #: 744623302126
- Item #: 9SIVB8UKCV8230
- Return Policy: Magicpower Return Policy
Refurbished: For 3274669-A HDS AMS1000 DF700-RKH
- Model #: 726727775808
- Item #: 9SIVRWKKXA7158
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for PSB350M-J3 power supply PSB400M-J3
- Model #: 792597728374
- Item #: 9SIVB8UKX33146
- Return Policy: Magicpower Return Policy
Refurbished: 1U 250W Switching Power Supply EN-8257763 HPS-2501U-21205
- Model #: 753525945997
- Item #: 9SIVB8UKA99688
- 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.
