Power Supplies - Showing 2185 - 2208 of 17941 Products
Refurbished: For VAPEL SR6604 SR6616 SR6608 Power Supply For AC-PSR1200-A
- Model #: 753525989687
- Item #: 9SIVB8UKAA7755
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO EVAP6300 6500 P6350 Power Supply QK717-63601 671987-001
- Model #: 759950241673
- Item #: 9SIVB8UKDA8717
- Return Policy: Magicpower Return Policy
Refurbished: For Storage Power Battery Module NI1M1BC4A
- Model #: 703454718292
- Item #: 9SIVB8UKAJ6262
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For Artesyn DC 650W Power Supply DS650DC-3
- Model #: 759950245879
- Item #: 9SIVB8UKDA9335
- Return Policy: Magicpower Return Policy
Refurbished: 39Y7215 39Y7214 7001567-J000/J002 X3650 X3550 M2 M3 Ppower Supply
- Model #: 722954725937
- Item #: 9SIVB8UKAA7251
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for X306 server power supply 300W 26K4106 23K4874 API3FS26
- Model #: 792597711802
- Item #: 9SIVRWKKXD4660
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply Used On WS-C4948-S/E Series Switches PWR-C49-300DC-F
- Model #: 724780778200
- Item #: 9SIVB8UKAA7629
- Return Policy: Magicpower Return Policy
Refurbished: PAC-350WA-B 350W CloudEngine 6800 Switching Power Supply
- Model #: 753525948776
- Item #: 9SIVB8UKAA0013
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for R720 R620 750W Server Power Supply D750E-S1 F750E-S0 E750E-SO
- Model #: 726099251665
- Item #: 9SIVRWKKXD1507
- Return Policy: Nytke team Return Policy
Refurbished: For X236 power supply 74P4455 74P4456 39Y7344 39Y7343
- Model #: 726727730876
- Item #: 9SIVRWKKXA3334
- Return Policy: Nytke team Return Policy
Refurbished: Communication Power Supply S31PT3E0203S
- Model #: 722954726712
- Item #: 9SIVB8UKAA7362
- Return Policy: Magicpower Return Policy
Refurbished: JPSU-150-AC-AFO DPS-150AB-10 A EX3400 150W AC Power Supply
- Model #: 753525955101
- Item #: 9SIVB8UKAA0264
- Return Policy: Magicpower Return Policy
Refurbished: 2903148 TRIO-PS-2G/1AC/24DC/5-2903148
- Model #: 753525949339
- Item #: 9SIVB8UKAA0104
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 390 790 990 7010 9010 Power Supply L240AS-00 L240AS-01 ...
- Model #: 744623313061
- Item #: 9SIVB8UKD21712
- Return Policy: Magicpower Return Policy
Refurbished: DL140G3 Power Supply TDPS-650CB A 440207 001 409841 002
- Model #: 722954724510
- Item #: 9SIVB8UKAA7078
- Return Policy: Magicpower Return Policy
Refurbished: FSP 350W Switching Power Supply SPI350PFB FSP350-60PFB
- Model #: 753525945768
- Item #: 9SIVB8UKA99647
- Return Policy: Magicpower Return Policy
Refurbished: EPW50-48A Communication Power Supply 1200W
- Model #: 724780182731
- Item #: 9SIVB8UKA98936
- Return Policy: Magicpower Return Policy
Refurbished: R300 Server Power Supply D400P-00 DPS-400YB A JY924
- Model #: 722954736674
- Item #: 9SIVB8UKAA6265
- Return Policy: Magicpower Return Policy
Refurbished: GRE 700W Switching Power Supply GPR700-12A
- Model #: 753525944648
- Item #: 9SIVB8UKAA5393
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for Industrial computer power supply PS-7270C PS-7270F ...
- Model #: 716837096818
- Item #: 9SIVB8UKX62829
- Return Policy: Magicpower Return Policy
Refurbished: ASR1002-PWR-AC Switch Power Supply
- Model #: 753525987294
- Item #: 9SIVB8UKAA8750
- Return Policy: Magicpower Return Policy
Refurbished: PWS-1K41F-1R Power Supply For Inspur NF8560 M2 Server 1400W
- Model #: 753525949759
- Item #: 9SIVTE8KXH6382
- Return Policy: Coretix Return Policy
Refurbished: For EFRP-302A SUN L25 L100 Tape Library Power Supply 1pcs
- Model #: 726727726046
- Item #: 9SIVRWKKXA2627
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for Industrial equipment power supply IPS PEC4120
- Model #: 792597713882
- Item #: 9SIVRWKKXD5571
- Return Policy: Nytke team 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.
