Power Supplies - Showing 1945 - 1968 of 17941 Products
Refurbished: 1Pcs for PSI400-212/12V to 220V400W inverter power supply
- Model #: 792597719815
- Item #: 9SIVRWKKXD7661
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for RM4850H RM4850M2 Communication Power Module 48V50A ...
- Model #: 716837094333
- Item #: 9SIVB8UKX62118
- Return Policy: Magicpower Return Policy
Refurbished: For MP1S-5220V MP1S-5300V Medical Server Power Supply
- Model #: 722954732119
- Item #: 9SIVB8UKAA5782
- Return Policy: Magicpower Return Policy
Refurbished: For TC4600 TC6600 Tool Case Server Power Supply DS 2000-3 - 002 2000W
- Model #: 726727816419
- Item #: 9SIVRWKKXB0648
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for T5-4 T5-8 SPAORCL-01G 7068817 7081596 7302922 3060W power ...
- Model #: 716837098300
- Item #: 9SIVB8UKX63095
- Return Policy: Magicpower Return Policy
Refurbished: Fo DPS-230LB A PB Pc7041 PC7066 Fujitsu API4PC49 DPS-250AB-19
- Model #: 722954737510
- Item #: 9SIVB8UKAA6401
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 5880 5890 xps8940 power supply 260W 6P 4P 4P interface
- Model #: 792597984046
- Item #: 9SIVB8UKX56997
- Return Policy: Magicpower Return Policy
Refurbished: For R48-2000e3 48V 30A Communication Power Supply 2000W
- Model #: 722954727887
- Item #: 9SIVB8UKAA7439
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 1U 300W P1A-6300P IPC, Firewall, Power Supply
- Model #: 792597714018
- Item #: 9SIVRWKKXD5579
- Return Policy: Nytke team Return Policy
Refurbished: For X2270M2 Server TDPS-600CB F REV. S2F PN: 300-2245-01 Power Supply
- Model #: 752804574590
- Item #: 9SIVRWKKXB1856
- Return Policy: Nytke team Return Policy
Refurbished: NE20E-8 DC Power Supply PSR550-D NE20E-8 Fan
- Model #: 722954726668
- Item #: 9SIVB8UKAA7342
- Return Policy: Magicpower Return Policy
Refurbished: For SUN X8428A-Z 300-1852-04 V215 V245 V445 550W Power Supply Tyco ...
- Model #: 722954734946
- Item #: 9SIVB8UKAA6105
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for CPR-2021-2M1 Redundant Power Supply 2000W, PWS-2K03P-1R, ...
- Model #: 792597721061
- Item #: 9SIVRWKKXD7960
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Power Supply For N2POWER 3.3V 5V 12V 160W Power Supply ...
- Model #: 759950246067
- Item #: 9SIVB8UKDA9359
- Return Policy: Magicpower Return Policy
Refurbished: For P1S-2300V-R Redundant Power Supply Module P1S2-5300V4V 300W
- Model #: 726727774801
- Item #: 9SIVRWKKXA4188
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 5V24A 3.3V30A 632AE CPC-A
- Model #: 759950242403
- Item #: 9SIVB8UKDA8824
- Return Policy: Magicpower Return Policy
Refurbished: R48-2900U Communication Power Rectifier Module 48V50A
- Model #: 722954733055
- Item #: 9SIVT8HKWF3071
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: For ELTEK 241246.500 Powerpack 48/5800 Communication Power Supply
- Model #: 703454717233
- Item #: 9SIVB8UKAJ6171
- Return Policy: Magicpower Return Policy
Refurbished: RPS-600-5 A 600W Switching Power Supply DPS-600SB A DPS-600SB D ...
- Model #: 753525943801
- Item #: 9SIVB8UKAA5285
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply Module For M500F
- Model #: 753525989694
- Item #: 9SIVB8UKAA7759
- Return Policy: Magicpower Return Policy
Refurbished: For 078-000-083 CX Series 1000W SPS 078-000-062 118031985
- Model #: 731029999081
- Item #: 9SIVRWKKXD1166
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for DPS-250AB-55A 55B 59B 24C 250W FLEX cash register, small 1U power ...
- Model #: 716837090908
- Item #: 9SIVB8UKX60849
- Return Policy: Magicpower Return Policy
Refurbished: PAC-350WA-B CloudEngine 6800 Series Switch Power Supply 350W AC
- Model #: 753525954357
- Item #: 9SIVB8UKAA0210
- Return Policy: Magicpower Return Policy
Refurbished: For PE6950 C1570P server power supply (1570W) FW414
- Model #: 726727728699
- Item #: 9SIVRWKKXA2838
- 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.
