Power Supplies - Showing 2281 - 2304 of 17995 Products
Refurbished: For EFAP-M351 350W 1U routed firewall power supply
- Model #: 726727723120
- Item #: 9SIVRWKKXA2332
- Return Policy: Nytke team Return Policy
Refurbished: For X4170 M2 X4270 Power Supply A247 AWF-2DC-760W 300- 2233-02
- Model #: 726727818451
- Item #: 9SIVRWKKXB1189
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for FSP300-50UCB 300W Industrial Control Power Supply
- Model #: 716837091141
- Item #: 9SIVB8UKX61016
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for Power PN 3602.00373B03 power supply
- Model #: 792597727261
- Item #: 9SIVB8UKX32595
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO BOX DC-ATX 16-24V 220W Power Supply Z4-ATX Z4-ATX-220 ...
- Model #: 759950240157
- Item #: 9SIVB8UKDA0339
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For SMU01C
- Model #: 753525991208
- Item #: 9SIVB8UKAA8017
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for Industrial computer equipment power supply ISO-350PP
- Model #: 792597713875
- Item #: 9SIVRWKKXD5555
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for SS-400ES 400W industrial computer, power supply, dual 8P
- Model #: 792597716593
- Item #: 9SIVRWKKXD6540
- Return Policy: Nytke team Return Policy
Refurbished: Communication Power Monitoring Module PSM-BA
- Model #: 722954726194
- Item #: 9SIVT8HKWF3254
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: R1V2-5275V4H R1V-2275V 275W Power Supply
- Model #: 753525947687
- Item #: 9SIVB8UKA99921
- Return Policy: Magicpower Return Policy
Refurbished: For MKP601 Switching Power Supply SWAD601M30 Server Power Module ...
- Model #: 752804576907
- Item #: 9SIVRWKKXB2136
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Power Supply For TDK-Lambda AlphaII-650 650W For ...
- Model #: 759950244360
- Item #: 9SIVB8UKDA9138
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 80W Power Supply VLT80-1003
- Model #: 759950240102
- Item #: 9SIVB8UKDA0366
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Thinkserver TS440 540 530 450W Power Supply FSA028 03X4373 ...
- Model #: 744623302836
- Item #: 9SIVB8UKCV8288
- Return Policy: Magicpower Return Policy
Refurbished: DS-CAC-300W DS-C9120 9140-K9 Switch Power Supply
- Model #: 753525984217
- Item #: 9SIVB8UKAA9079
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for AX4-5 NX4-5 Storage power supply 071-000-503 071-000-562 ...
- Model #: 792597984565
- Item #: 9SIVB8UKX57102
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for DZY-48/50HI (TTI) communication power supply
- Model #: 716837095446
- Item #: 9SIVB8UKX62453
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for DS1200-3-002 EX4500-PWR1-AC-BF 740-043832 1200w power ...
- Model #: 716837092247
- Item #: 9SIVB8UKX61324
- Return Policy: Magicpower Return Policy
Refurbished: PowerEdge T310 power supply
- Model #: 722954988806
- Item #: 9SIVB8UKAA6571
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for DPS-400AB small 1u 400w small power supply flex
- Model #: 792597706549
- Item #: 9SIVRWKKXD3240
- Return Policy: Nytke team 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 Advantech IPC-622 Power PRT PRM400 6U Industrial Computer Server
- Model #: 722954736940
- Item #: 9SIVB8UKAA6325
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO R210 R220 250W Power Supply N250E-S0 NPS-250NB A 6HTWP ...
- Model #: 744623299303
- Item #: 9SIVB8UKCU6556
- Return Policy: Magicpower Return Policy
Refurbished: PSB400M-J3 400W Power Supply for CWT Ship
- Model #: 753525987140
- Item #: 9SIVB8UKAA8696
- 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.
