Power Supplies - Showing 2017 - 2040 of 17945 Products
Refurbished: 1PCS for 8852 8856 4-port network switching module 44W3323 44W3321 ...
- Model #: 792597713141
- Item #: 9SIVRWKKXD4909
- Return Policy: Nytke team Return Policy
Refurbished: For P12953-001 R0Q90A HPE MSA2060 764W 48 V DC Power Supply
- Model #: 726727821055
- Item #: 9SIVRWKKXB1553
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for TP4-24 24V 4A smart charger instead of 24V 3A 5A
- Model #: 792597719228
- Item #: 9SIVRWKKXD7501
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO SU For FSP 350W Switching Power Supply FSP350-50AHNCH
- Model #: 744623316062
- Item #: 9SIVB8UKD46462
- Return Policy: Magicpower Return Policy
Refurbished: VCD5000 400W Power Supply EFAP-402
- Model #: 753525946154
- Item #: 9SIVB8UKA99705
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for P500 P700 P710 650W Workstation Power Supply FRU: 54Y8908 ...
- Model #: 792597708222
- Item #: 9SIVRWKKXD3843
- Return Policy: Nytke team Return Policy
Refurbished: For FSP550-50ERS FSP800-50ERS GW-CRPS800-2H GW-CRPS800S-2H ...
- Model #: 726727820225
- Item #: 9SIVRWKKXB1427
- Return Policy: Nytke team Return Policy
Refurbished: 550W Power Supply ST-550P-AD
- Model #: 753525936421
- Item #: 9SIVB8UKA99459
- Return Policy: Magicpower Return Policy
Refurbished: New For 75W DC5V Power Supply S8FS-C07505J S8FS-C07512J S8FS-C07524J ...
- Model #: 753525990010
- Item #: 9SIVB8UKAA7836
- Return Policy: Magicpower Return Policy
Refurbished: ABL1RPM24100 240W Simplex AC/DC Manual Switch Output 24V 10A ...
- Model #: 753525948103
- Item #: 9SIVB8UKA99989
- Return Policy: Magicpower Return Policy
Refurbished: For ACE-R150 ACE-R165 Modular Device Power Supply
- Model #: 726727731781
- Item #: 9SIVRWKKXA3438
- Return Policy: Nytke team Return Policy
Refurbished: For AG637 EVA4400 Power Supply DPS-600PB-1 A 5697-6118 435740-001
- Model #: 726727775563
- Item #: 9SIVRWKKXA4387
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for X3650 M5 900W Power Supply 700-013826-0000 94Y8167 94Y8166
- Model #: 792597984367
- Item #: 9SIVB8UKX57073
- Return Policy: Magicpower Return Policy
Refurbished: For Communication Power Module PSE350-D
- Model #: 722954723513
- Item #: 9SIVT8HKWF3050
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: DS-CAC-3000w DS-C9509 Switch Power Supply AA23200-ARS5
- Model #: 703454719978
- Item #: 9SIVB8UKAJ6435
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for R230 server power supply D250E-S0 AC250E-S0 9J6JG P59VM 250W ...
- Model #: 726099252662
- Item #: 9SIVRWKKXD1801
- Return Policy: Nytke team Return Policy
Refurbished: 600 705 800 G2 160W 200W Power Supply, 792198792199-001905301-001
- Model #: 722954722738
- Item #: 9SIVB8UKAA6959
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 8233-E8B P750 Power Supply 74Y8431 74Y5811 00E7189
- Model #: 792597713288
- Item #: 9SIVRWKKXD4911
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for VNX5100 Controller 110-140-104B SG7011 071-000-529
- Model #: 792597720149
- Item #: 9SIVRWKKXD7809
- Return Policy: Nytke team Return Policy
Refurbished: For DJN3000 Inverter Power Supply 3KVA
- Model #: 722954726972
- Item #: 9SIVB8UKAA7368
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Z800 850W Switching Power Supply DPS-850DB A 468929-004 ...
- Model #: 744623310732
- Item #: 9SIVB8UKD12112
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 300-1666-01 300-1906 300-1583 B1500 Power Supply EPAP-420 ...
- Model #: 792597726837
- Item #: 9SIVB8UKX32515
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for JPSU-600-AC-AFO switch power supply DPS-600AB-6 PN:640-060602
- Model #: 792597727193
- Item #: 9SIVB8UKX32615
- Return Policy: Magicpower Return Policy
Refurbished: PS-2551-7L 12V 45A 550W Server Power Supply Platinum Redundant Power
- Model #: 753525985368
- Item #: 9SIVSYTKUT1203
- Return Policy: SuZhouLiYuanLiXinBaiHuo 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.
