Power Supplies - Showing 2233 - 2256 of 17939 Products
Refurbished: 1Pcs for S7502E S7503E-S switch 300W AC power supply LSQM1AC320 ...
- Model #: 716837088585
- Item #: 9SIVB8UKX60085
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for server PSR650B-12A1 power supply 650W PSR650B-12A1H YM2651B
- Model #: 716837083931
- Item #: 9SIVB8UKX57682
- Return Policy: Magicpower Return Policy
Refurbished: Server Power Supply X3650 M5 1300W 00Y9106 N33501L 00Y9107
- Model #: 753525984651
- Item #: 9SIVB8UKAA9107
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 21.5" AIO A1311 200W Power Supply ADP-200DF B OT8043 ...
- Model #: 744623314280
- Item #: 9SIVB8UKD21842
- Return Policy: Magicpower Return Policy
Refurbished: Generation 3710 3910 5000MT 7000MT Power Supply D180EBS-00 ...
- Model #: 703454719381
- Item #: 9SIVB8UKAJ6357
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for POE HKA02454003-8Q Broadband Data Adapter 54V 0.28A
- Model #: 792597718948
- Item #: 9SIVRWKKXD7323
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO AIO 720-24IKB 8Pin 250W Switching Power Supply PA-2251-1 ...
- Model #: 744623299761
- Item #: 9SIVB8UKCU6646
- Return Policy: Magicpower Return Policy
Refurbished: TDPS-600CB G 600W For Delta RS500 I610r-G Server Power Supply
- Model #: 753525954814
- Item #: 9SIVB8UKAA0244
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for R510 910 CPS750-D121 6GTF5 Server, Power Supply 750W
- Model #: 792597725212
- Item #: 9SIVRWKKXD9367
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for DS 4100B Power Supply 60-0200849-02 100-652-029 DPSN-210BB ...
- Model #: 726099252266
- Item #: 9SIVRWKKXD1620
- Return Policy: Nytke team Return Policy
Refurbished: For FLEX-250W 1U Power Supply ABCD K39 Chassis NAS Switch Cash Register
- Model #: 752804572817
- Item #: 9SIVRWKKXA2145
- Return Policy: Nytke team Return Policy
Refurbished: PS-2551-9L 550W Original For Inspur Server Power Supply ...
- Model #: 753525955705
- Item #: 9SIVTE8KXH6366
- Return Policy: Coretix Return Policy
Refurbished: LDA150W-5 Original Disassembly Switching Power Supply 5V/30A 150W
- Model #: 753525984910
- Item #: 9SIVRTNKX43555
- Return Policy: Jiamayanonly Return Policy
Refurbished: 1PCS for Z840 DPS-1125AB-1A 758470-001 719799-001 Workstation Power ...
- Model #: 792597725274
- Item #: 9SIVRWKKXD9370
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for 40-72V DC power supply 800W CRPSD800D2
- Model #: 792597709533
- Item #: 9SIVRWKKXD4010
- Return Policy: Nytke team Return Policy
Refurbished: For MRG-6500P-R 500W Redundant Power Supply
- Model #: 722954724046
- Item #: 9SIVB8UKAA7039
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply Used On 9124 9134 9148 Series Switches DS-C24-300AC
- Model #: 753525986389
- Item #: 9SIVB8UKAA8580
- Return Policy: Magicpower Return Policy
Refurbished: XPS8940 Lingyue 3880 3891 Power 5080 7080 3080 500W
- Model #: 722954730573
- Item #: 9SIVB8UKAA5660
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for C20 Workstation Power Supply FPS800-09LEN 54Y8842 54Y8840 ...
- Model #: 792597722716
- Item #: 9SIVRWKKXD8608
- Return Policy: Nytke team Return Policy
Refurbished: 64P8448 01AC579 V7000 G2 Expansion Cabinet for ESM Controller 64P8439
- Model #: 753525956399
- Item #: 9SIVB8UKAA8846
- Return Policy: Magicpower Return Policy
Refurbished: XW8600 Workstation Power Supply High Quality DPS-1050CB A 440860-001 ...
- Model #: 724780777692
- Item #: 9SIVB8UKAA7584
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 4.2V55A 231W DPS-231CB A
- Model #: 759950247477
- Item #: 9SIVB8UKDF9412
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for SA5212 NF5270 5280 M4 M5 550W Server Power Supply PS-2551-5L
- Model #: 792597705207
- Item #: 9SIVRWKKXD2729
- Return Policy: Nytke team Return Policy
Refurbished: For 220V 48VDC Power Supply For SR4850-A
- Model #: 753525989014
- Item #: 9SIVB8UKAA7730
- 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.
