Power Supplies - Showing 1921 - 1944 of 17993 Products
Refurbished: For VNX SG9006 2U Expansion Cabinet Power Supply 400W 071-000-539 ...
- Model #: 726727817027
- Item #: 9SIVRWKKXB0844
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for DPS-650XB-2 C 650W 1U industrial computer, server power supply
- Model #: 792597715688
- Item #: 9SIVRWKKXD6400
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS For HiTek HF10-S-M-_FFFL Power Supply
- Model #: 753525933345
- Item #: 9SIVSY0KUU6040
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1PCS for P500 P510 490W FRU: 54Y8909 Workstation Power Supply
- Model #: 792597707898
- Item #: 9SIVRWKKXD3709
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for XPS5880 3880 3681 3690 3890 7080 8940 7090MT Power supply ...
- Model #: 792597707379
- Item #: 9SIVRWKKXD3485
- Return Policy: Nytke team Return Policy
Refurbished: P2F-5400V 400W Switching Power Supply
- Model #: 724780182038
- Item #: 9SIVSYTKUT2121
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: 1Pcs for M92DC MP23Y FT44X M2G8X AC750EPS-00 H750EPS-00 L750EPS-0 ...
- Model #: 716837091776
- Item #: 9SIVB8UKX61125
- Return Policy: Magicpower Return Policy
Refurbished: For GW-EPS2U600W GW-EPS2U650 GW-2U600 power supply
- Model #: 726727819427
- Item #: 9SIVRWKKXB1406
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for 17P8979 00Y3447 00FG193 45W5002 45W4439
- Model #: 792597724031
- Item #: 9SIVRWKKXD8901
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 550W Switching Power Supply CAA-550CT A
- Model #: 744623310268
- Item #: 9SIVB8UKD12070
- Return Policy: Magicpower Return Policy
Refurbished: SUN T5120 X4140 X4150 658W Power Supply A221 300-2015-05 300-2015-06
- Model #: 753525942392
- Item #: 9SIVB8UKAA5136
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 510S M420 700-24AGR 6Pin 260W Power Supply PA-1261-7 ...
- Model #: 744623299075
- Item #: 9SIVB8UKCU6559
- Return Policy: Magicpower Return Policy
Refurbished: PSA350 50M Server Redundant power Supply
- Model #: 753525986990
- Item #: 9SIVB8UKAA8682
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For TQW14A-48S12-R 100-240VAC
- Model #: 753525989755
- Item #: 9SIVB8UKAA7783
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Medical microwave power supply
- Model #: 745635674508
- Item #: 9SIVB8UKDA0194
- Return Policy: Magicpower Return Policy
Refurbished: OptiPlex 580 760 780 960 980 Black 24Pin 235W Power Supply FR610 PW116 ...
- Model #: 753525935318
- Item #: 9SIVB8UKA99327
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For LSPM2150A,PSR150-A/A1,LSKM2150A 150W
- Model #: 731029999388
- Item #: 9SIVRWKKXD1129
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO ALPHASERVER ES40 ES45 720W Power Supply API-7650 ...
- Model #: 759950248603
- Item #: 9SIVB8UKDF9517
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 790 990 3010 7010 9010 SFF 240W Power Supply JNPVV ...
- Model #: 745635675055
- Item #: 9SIVB8UKDA0214
- Return Policy: Magicpower Return Policy
Refurbished: Ablecom 400W Power Supply PWS-401-1R
- Model #: 753525941197
- Item #: 9SIVB8UKAA4953
- Return Policy: Magicpower Return Policy
Refurbished: MSX6025 SX6036 300W Power Supply YM-11-1825 675170-001
- Model #: 753525944402
- Item #: 9SIVB8UKAA5371
- Return Policy: Magicpower Return Policy
Refurbished: For 3900 3901 3991 3990 3660 500W Power Supply XE4 XPS8950 12th ...
- Model #: 726727729979
- Item #: 9SIVRWKKXA3181
- Return Policy: Nytke team Return Policy
Refurbished: NEMIC-LAMBDA 5V5A 12V2.5A -12V0.5A 60W Power Supply ZT60-522
- Model #: 753525945249
- Item #: 9SIVB8UKA99600
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 7960 T7920 2200W Switching Power Supply H2200EPF-00 NC3TP ...
- Model #: 726099222528
- Item #: 9SIVB8UKCU6267
- 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.
