Power Supplies - Showing 1993 - 2016 of 17933 Products
Refurbished: 1Pcs for PS-2152-2H V5 1500w server AC power supply
- Model #: 792597984800
- Item #: 9SIVB8UKX57198
- Return Policy: Magicpower Return Policy
Refurbished: 500W Switching Power Supply FSF046
- Model #: 753525940923
- Item #: 9SIVB8UKAA4941
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FSP300-50FFB 300W Small 1u Power Supply 300W FLEX
- Model #: 716837092506
- Item #: 9SIVB8UKX61502
- Return Policy: Magicpower Return Policy
Refurbished: 510S-07ICB Power Supply AIO 700-24AGRPCH018 PA-1181-7 180W
- Model #: 722954987526
- Item #: 9SIVB8UKAA6486
- Return Policy: Magicpower Return Policy
Refurbished: PA-1151-2H For H3C 5500-52C-EI Switch Power Supply
- Model #: 753525955903
- Item #: 9SIVSYTKUU8334
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: 1pcs for E9000 IT0E01FAN000 03030QEJ 0305584 FAN
- Model #: 792597726301
- Item #: 9SIVRWKKXD9604
- Return Policy: Nytke team Return Policy
Refurbished: 9300 Power Supply 341-101099-01 PWR-C1-1900WAC-P
- Model #: 753525957020
- Item #: 9SIVB8UKAA8905
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply 242100.110SC SMARTPACK Extended G2
- Model #: 703454715345
- Item #: 9SIVB8UKAJ5909
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for AMU02C Communication Power Monitoring Module EN3MAMU02C101
- Model #: 792597721344
- Item #: 9SIVRWKKXD8178
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO CA2000-0020 G2 CA4030-0201 G1
- Model #: 759950241246
- Item #: 9SIVB8UKDA0469
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO C9407R C9410R For C9400-PWR-3200AC 700-014343-0000 ...
- Model #: 759950248887
- Item #: 9SIVB8UKDF9529
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO FSP -5V 1U 250W Switching Power Supply FSP250-601U ...
- Model #: 744623302782
- Item #: 9SIVB8UKCV8271
- Return Policy: Magicpower Return Policy
Refurbished: For Communication Power Module PSR1800-56D
- Model #: 722954728136
- Item #: 9SIVT8HKWF3244
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1200W Power Supply C240 M3 UCSC-PSU2-1200 V02 341-0472-02 ...
- Model #: 753525986549
- Item #: 9SIVB8UKAA8598
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for ETP48100-B1 Power Supply 48V100AH OLT
- Model #: 716837094623
- Item #: 9SIVB8UKX62292
- Return Policy: Magicpower Return Policy
Refurbished: For P1S-2400V-R Server Module Power Supply 400W
- Model #: 726099252921
- Item #: 9SIVRWKKXD1855
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for ORION-450AX Industrial Equipment Power Supply APD-2026
- Model #: 792597713936
- Item #: 9SIVRWKKXD5550
- Return Policy: Nytke team Return Policy
Refurbished: PWS-920P-SQ 920W Server Power Module
- Model #: 722954737435
- Item #: 9SIVB8UKAA6370
- Return Policy: Magicpower Return Policy
Refurbished: For FSP200-61DL SPI180F-4BS FSP200-62DL Industrial Control Power Supply
- Model #: 722954731686
- Item #: 9SIVB8UKAA5759
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for SPR1CA800LGP Network Server Power Supply 800W 9PA8001501
- Model #: 716837084433
- Item #: 9SIVB8UKX58063
- Return Policy: Magicpower Return Policy
Refurbished: 300W Switching Power Supply PCSA-300P-X2V
- Model #: 753525940916
- Item #: 9SIVB8UKAA4938
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for M770 medical power supply S26113-E595-V50-01 DPS--450AB-15 A
- Model #: 716837097341
- Item #: 9SIVB8UKX62946
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO For 3Y 1000W Switching Power Supply YM-2102F YM-2102D
- Model #: 744623301280
- Item #: 9SIVB8UKCV8136
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply 341-0692-01 500W NXA-PHV-500W
- Model #: 753525986563
- Item #: 9SIVB8UKAA8606
- 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.
