Power Supplies - Showing 1945 - 1968 of 17943 Products
Refurbished: EVA6400 EVA8400 339596-601 489883-001 PS-3381-1C2 400W
- Model #: 753525987645
- Item #: 9SIVB8UKAA8748
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Liteon R520G7 RH2285 750W Switching Power Supply ...
- Model #: 744623315362
- Item #: 9SIVB8UKD46425
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO HTPC FLEX Small 1U Rated 400W Peak 450W Switching Power ...
- Model #: 744623305097
- Item #: 9SIVB8UKD01886
- Return Policy: Magicpower Return Policy
Refurbished: For SUN 300-1448 Netra T1 T100 T105 Server Power Supply DPS-129AB A 130W
- Model #: 722954735202
- Item #: 9SIVB8UKAA6112
- Return Policy: Magicpower Return Policy
Refurbished: 10-pin Kaitian M4600 M4650 Power Supply HK350-12PP FSP250-30AGBAA ...
- Model #: 722954737527
- Item #: 9SIVB8UKAA6405
- Return Policy: Magicpower Return Policy
Refurbished: For 48V 50A Power Supply For DZY-4850HI (TTI) DZY-4850HI(TTI)
- Model #: 753525988901
- Item #: 9SIVB8UKAA7693
- Return Policy: Magicpower Return Policy
Refurbished: For CRPS1600W LITEON PS-2162-5L 1600W Server Power Supply
- Model #: 726727817140
- Item #: 9SIVRWKKXB0973
- Return Policy: Nytke team Return Policy
Refurbished: For PWS-1K60D-1R Server Power Supply 1600W
- Model #: 722954723025
- Item #: 9SIVB8UKAA6928
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for PWS-341P-1H PWS-563-1H20 PWS-605P-1H 1U Power Supply
- Model #: 726099252105
- Item #: 9SIVRWKKXD1641
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for PWS-1K25P-PQ equipment machine, workstation, medical power ...
- Model #: 716837093107
- Item #: 9SIVB8UKX61717
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 3100 5100 5150 9100 960 305W Power Supply N305P-06 L305P-01 ...
- Model #: 744623314143
- Item #: 9SIVB8UKD21837
- Return Policy: Magicpower Return Policy
Refurbished: For GW-EPS1650DA Julong 1650W desktop computer power supply ATX ...
- Model #: 703454721261
- Item #: 9SIVB8UKAJ6565
- Return Policy: Magicpower Return Policy
Refurbished: For GW-T200SPHA 200W Video Recorder Power Supply
- Model #: 752804576341
- Item #: 9SIVRWKKXB2092
- Return Policy: Nytke team Return Policy
Refurbished: For 3Y YM-2721A YM-2821A Server 2U Power Module 720W
- Model #: 722954727375
- Item #: 9SIVB8UKAA7431
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for R4900G3 Power Supply PSR550-12A 0213A06P 0213A05N 550W
- Model #: 792597709366
- Item #: 9SIVRWKKXD3968
- Return Policy: Nytke team Return Policy
Refurbished: For MMP260-3.8-B 3.8V50A
- Model #: 752804576068
- Item #: 9SIVRWKKXB2070
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO PSU For FSP 1+1 500W Power Supply FSP500-80MRA ...
- Model #: 726099223273
- Item #: 9SIVB8UKCU6318
- Return Policy: Magicpower Return Policy
Refurbished: C240 C220 M5 1050W Power Supply UCSC-PSU1-1050W 341-0638-01
- Model #: 753525937039
- Item #: 9SIVB8UKA99547
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply Module For EGU01
- Model #: 753525991260
- Item #: 9SIVB8UKAA8039
- Return Policy: Magicpower Return Policy
Refurbished: H3C Poe Switching Power Supply VC66B200AS HRS66-6000AD DPSN-66BP A ...
- Model #: 753525937176
- Item #: 9SIVSY0KUS2399
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1PCS for rS2200T S5500T S5600T 650W AC Power Supply HSP650-S12A ...
- Model #: 792597709809
- Item #: 9SIVRWKKXD4130
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 900W Switching Power Supply PWS-902-1R
- Model #: 744623315096
- Item #: 9SIVB8UKD21944
- Return Policy: Magicpower Return Policy
Refurbished: For AUP-X-250 SPI3001UH AUP-X-300B RP- 2005-00 FSP350-50GMN Power ...
- Model #: 726727819564
- Item #: 9SIVRWKKXB1335
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for 750W server R730XD power supply Y9VFC V1YJ6 5RHVV 0XW8W
- Model #: 792597708291
- Item #: 9SIVRWKKXD3823
- 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.
