Power Supplies - Showing 2185 - 2208 of 17979 Products
Refurbished: Power Supply For AC250PS-00 TFX0250 D2506A 530S 531S 545 546
- Model #: 752804572077
- Item #: 9SIVRWKKXA1997
- Return Policy: Nytke team Return Policy
Refurbished: P2F-5400V P2F-5500V P2H-5400V For ZIPPY 400W Switching Power Supply
- Model #: 753525947076
- Item #: 9SIVB8UKA99870
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 800W Switching Power Supply DPS-800AB-37 A DPS-800AB-37A
- Model #: 744623316369
- Item #: 9SIVB8UKD46520
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for HFZ16V-200/900-B-SHSL4P-1 8-36VDC 200A 450V DC Contactor
- Model #: 792597718320
- Item #: 9SIVRWKKXD7167
- Return Policy: Nytke team Return Policy
Refurbished: PSU For FSP CRPS 700W Power Supply SPR1C700
- Model #: 753525937374
- Item #: 9SIVB8UKA99557
- Return Policy: Magicpower Return Policy
Refurbished: Precision 650 Workstation Power 650 Power NPS-460BB A 08P446
- Model #: 722954735516
- Item #: 9SIVB8UKAA6189
- Return Policy: Magicpower Return Policy
Refurbished: For DSA300R-C Power Supply 300W Computer Server
- Model #: 722954721519
- Item #: 9SIVB8UKAA6778
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for D19-675P1A L99520-003 L76883-001 D675E00
- Model #: 792597727285
- Item #: 9SIVB8UKX32604
- Return Policy: Magicpower Return Policy
Refurbished: Workstation T5600 T3600 635W NVC7F D635EF-00 Power Supply
- Model #: 722954988103
- Item #: 9SIVB8UKAA6525
- Return Policy: Magicpower Return Policy
Refurbished: S12516 2518 Switch Power Supply CP2000AC54PE LSTM2PSRA JF429A
- Model #: 703454718391
- Item #: 9SIVB8UKAJ6256
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO SFX 250W Switching Power Supply YQ-400S
- Model #: 744623301723
- Item #: 9SIVB8UKCV8168
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 300W Switching Power Supply PSG300C-SD
- Model #: 744623305578
- Item #: 9SIVB8UKD01933
- Return Policy: Magicpower Return Policy
Refurbished: For C2100 Server Power Supply PS-2751-5Q 750W 12V 60A
- Model #: 726727821598
- Item #: 9SIVRWKKXB1584
- Return Policy: Nytke team Return Policy
Refurbished: PAC3000S12-T1 Switch Communication Power Module
- Model #: 703454720578
- Item #: 9SIVB8UKAJ6537
- Return Policy: Magicpower Return Policy
Refurbished: For R350 T350 R660 R550 R450 700W Power Supply H700E-S1 X1FHX
- Model #: 726099253218
- Item #: 9SIVRWKKXD1842
- Return Policy: Nytke team Return Policy
Refurbished: Power DC Cconverter DD651M380-1M1
- Model #: 722954723490
- Item #: 9SIVB8UKAA7015
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FSP400-57FHB 48V 400W ITX FLEX NAS switch small 1U power supply
- Model #: 716837091615
- Item #: 9SIVB8UKX61158
- Return Policy: Magicpower Return Policy
Refurbished: For 468929-004 508148-001 DPS-850DB A 850W Z800 Workstation Power ...
- Model #: 726099251610
- Item #: 9SIVRWKKXD1481
- Return Policy: Nytke team Return Policy
Refurbished: For 5860 7865 R13 R14 R15 Power Supply D1350EPF-00 DPS1350AB-1 A
- Model #: 726727732542
- Item #: 9SIVRWKKXA3443
- Return Policy: Nytke team Return Policy
Refurbished: 07390P PE6400/PE4400 Server Power Supply 320W EP071350
- Model #: 722954726125
- Item #: 9SIVB8UKAA7276
- Return Policy: Magicpower Return Policy
Refurbished: PBA600F-15 Original Disassembly Switching Power Supply 15V/43A 645W
- Model #: 753525984897
- Item #: 9SIVB8UKAA9150
- Return Policy: Magicpower Return Policy
Refurbished: For MR483000LV Communication Power Supply 48V50A
- Model #: 722954727863
- Item #: 9SIVB8UKAA7477
- Return Policy: Magicpower Return Policy
Refurbished: ST-300WHT 300W AT Industrial Computer Power Supply ST-230WHF
- Model #: 722954721984
- Item #: 9SIVB8UKAA6865
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for S1250C1-VV server power supply SPIRENT industrial switching power ...
- Model #: 792597724338
- Item #: 9SIVRWKKXD9071
- 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.
