Power Supplies - Showing 2113 - 2136 of 17942 Products
Refurbished: Complete Set For 3Y YH-8451B Redundant Server Power Supplies
- Model #: 753525986808
- Item #: 9SIVSY0KUU6020
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: Power Supply For FS40-7608 100-240VAC AC-CD 5V+-12V
- Model #: 753525991529
- Item #: 9SIVB8UKAA8140
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For EMC1100W Switching Power Supply SGE022 071-000-710
- Model #: 744623311395
- Item #: 9SIVB8UKD12189
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 300W Peak 400W Switching Power Supply SD-3450U/2U ...
- Model #: 744623312347
- Item #: 9SIVB8UKD19578
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 7070 3891 XPS8940 XE3 Power Supply H300EGS-00 Small Chassis ...
- Model #: 792597982325
- Item #: 9SIVB8UKX56649
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for PSA400M 400W equipment machine power supply PSA400M
- Model #: 792597710874
- Item #: 9SIVRWKKXD4359
- Return Policy: Nytke team Return Policy
Refurbished: PAC-2700WA 2700W AC power module
- Model #: 703454722879
- Item #: 9SIVB8UKAJ6774
- Return Policy: Magicpower Return Policy
Refurbished: CAA-550CT A 550W ATX Server Power Supply
- Model #: 722954737725
- Item #: 9SIVB8UKAA6392
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power-one 130W Power Supply MAP130-4003
- Model #: 759950241482
- Item #: 9SIVB8UKDA8734
- Return Policy: Magicpower Return Policy
Refurbished: For BEA-560T BEA-550H BEA-646 BEA-640-B2 BEA-635 BPS-300SP Power ...
- Model #: 726727820737
- Item #: 9SIVRWKKXB1497
- Return Policy: Nytke team Return Policy
Refurbished: For ES0W2PCD0150 Communication Power Module PWR150D
- Model #: 722954726255
- Item #: 9SIVT8HKWF2809
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: Power supply for 1pcs ENP-3927B ENP-3927B-GJ50 V2 275W
- Model #: 716837090946
- Item #: 9SIVB8UKX60865
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 01W1TN 0Y58PJ MX7000 3000W Power Supply A3000E-S0 1W1TN ...
- Model #: 792597708710
- Item #: 9SIVRWKKXD3960
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for 526T PA-2301-3PC PCM0180W 300W 500W Power Supply
- Model #: 792597707690
- Item #: 9SIVRWKKXD3687
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for SH-300SRD-P 300W Disk Array Cabinet Power Supply
- Model #: 792597985715
- Item #: 9SIVB8UKX57369
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for small power supply 350W FSP350-50SHNCB MATX small chassis power ...
- Model #: 792597716654
- Item #: 9SIVRWKKXD6705
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 1800W Power Supply UMP16T-SKY-S2E-S2Q-S2Q-01 ...
- Model #: 759950242182
- Item #: 9SIVB8UKDA8778
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for REG50010S 200-500V 1-10A 4KW Charging Pile Module
- Model #: 792597718856
- Item #: 9SIVRWKKXD7332
- Return Policy: Nytke team Return Policy
Refurbished: For FLEX CMM 68Y7030 68Y7032 00AN232 46W0923 0955
- Model #: 726727816198
- Item #: 9SIVRWKKXB0674
- Return Policy: Nytke team Return Policy
Refurbished: For EFRP-603 600W Server Power Supply EFRP-603-A21 1pcs
- Model #: 726727725728
- Item #: 9SIVRWKKXA2680
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO RD650 RD450 350 TS560 450W Switching Power Supply ...
- Model #: 744623303611
- Item #: 9SIVB8UKCW6107
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply GERM4815TVP
- Model #: 753525936544
- Item #: 9SIVB8UKA99502
- Return Policy: Magicpower Return Policy
Refurbished: PMC15E-1 Original Disassembly Elevator Power Supply 5V 0.1-2A -12V 0.2A ...
- Model #: 753525986679
- Item #: 9SIVB8UKAA8601
- Return Policy: Magicpower Return Policy
Refurbished: For CWT PSB250Q-J3 Power Supply 250W PSB250Q-J3
- Model #: 703454719817
- Item #: 9SIVB8UKAJ6424
- 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.
