Power Supplies - Showing 1921 - 1944 of 17939 Products
Refurbished: For sgi power supply AHW5DC252W REV: 03 ECD13050001
- Model #: 752804577201
- Item #: 9SIVRWKKXB2143
- Return Policy: Nytke team Return Policy
Refurbished: PWR-C49-300AC WS-C4948 4948-10GE Network Power Supply
- Model #: 753525949100
- Item #: 9SIVB8UKAA0107
- Return Policy: Magicpower Return Policy
Refurbished: 250W Switching Power Supply EFA-250
- Model #: 753525942309
- Item #: 9SIVB8UKAA5103
- Return Policy: Magicpower Return Policy
Refurbished: For 8664N-I16 power supply DPS-250AB-101 B
- Model #: 752804575474
- Item #: 9SIVRWKKXB2011
- Return Policy: Nytke team Return Policy
Refurbished: For RAW-6500P-R (ROHS) Switching Power Supply
- Model #: 722954721281
- Item #: 9SIVB8UKAA6781
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 130W Power Supply Borad VLT130-1100
- Model #: 759950245626
- Item #: 9SIVB8UKDA9332
- Return Policy: Magicpower Return Policy
Refurbished: 241114.300 FLATPACK 1500 24V/50A 230Vac Power Supply Module Fast Ship
- Model #: 753525934670
- Item #: 9SIVB8UKA99267
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO LFA15F 5V3A 15W Power Supplly LFA15F-5-SNJ1 LFA15F-5-SN ...
- Model #: 759950240263
- Item #: 9SIVB8UKDA0375
- Return Policy: Magicpower Return Policy
Refurbished: For B8000 Power Supply B4880 B5880 A6000
- Model #: 752804578697
- Item #: 9SIVRWKKXB2389
- Return Policy: Nytke team Return Policy
Refurbished: T3630 T3640 Power Supply 0VMT9 550w
- Model #: 722954730887
- Item #: 9SIVB8UKAA5682
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for PSA350M server redundant power supply PSA350M machine power ...
- Model #: 792597712625
- Item #: 9SIVRWKKXD4775
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for PSL130-AD-H PSL180-AD-H power supply for S5600-26C 52C ...
- Model #: 792597722815
- Item #: 9SIVRWKKXD8632
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO For CWT SATA*4+IDE*4 250W Power Supply PSF250M-20
- Model #: 744623316031
- Item #: 9SIVB8UKD46451
- Return Policy: Magicpower Return Policy
Refurbished: For Linghua cPS-H325/AC HAC250P-490 (E) CPCI Power Module
- Model #: 722954721717
- Item #: 9SIVB8UKAA6850
- Return Policy: Magicpower Return Policy
Refurbished: For GW-MATX300 Micro 270w
- Model #: 752804575887
- Item #: 9SIVRWKKXB2063
- Return Policy: Nytke team Return Policy
Refurbished: SB5800-08A Fiber Switch Power Supply SBPSFAN2FB 31741-06 Power Module
- Model #: 703454717400
- Item #: 9SIVB8UKAJ6138
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 100-809-008 2200W 078-000-050
- Model #: 716837083375
- Item #: 9SIVB8UKX57600
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for CPB09-043A R920 M720 Medical Power Supply S26113-E568-V70-01
- Model #: 716837085744
- Item #: 9SIVB8UKX58636
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For Delta 830W Power Supply DPS-830AB A D20852-005
- Model #: 726099221330
- Item #: 9SIVB8UKCU6084
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for STLZ01CFBB 0235G6RF 1800+ 2023 S2200T S2600T
- Model #: 716837083207
- Item #: 9SIVB8UKX57493
- Return Policy: Magicpower Return Policy
Refurbished: For Precision R5400 F013C CPU Power Backplane
- Model #: 726727730975
- Item #: 9SIVRWKKXA3315
- Return Policy: Nytke team Return Policy
Refurbished: For 683241-001 682373-001 580W 3PAR M6710
- Model #: 726727820850
- Item #: 9SIVRWKKXB1513
- Return Policy: Nytke team Return Policy
Refurbished: 280W ProDesk 600 G2 MT Power Supply, 796348-001796418-001
- Model #: 722954722936
- Item #: 9SIVB8UKAA6941
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 220 230 537 545 660S 390 790 990 3010 7010 250W Power Supply ...
- Model #: 744623299327
- Item #: 9SIVB8UKCU6564
- 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.
