Power Supplies - Showing 2377 - 2400 of 18356 Products
Refurbished: KHACHIMO M6 800W Power Supply PS-2801-22L1
- Model #: 759950249068
- Item #: 9SIVB8UKDF9555
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for X4640 T5440 Server Power 1133W 300- 2158-05 SPASUNMI-08G
- Model #: 792597710683
- Item #: 9SIVRWKKXD4393
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for DS-C24-300AC SPACSCO-16 Power Supply 341-0250-01 9124 9134
- Model #: 792597711987
- Item #: 9SIVRWKKXD4574
- Return Policy: Nytke team Return Policy
Refurbished: For server power supply DS850-9-401 48V 17.5A
- Model #: 752804575375
- Item #: 9SIVRWKKXB2005
- Return Policy: Nytke team Return Policy
Refurbished: For ETN CR48 Communication Power Supply CR48-3G
- Model #: 703454721322
- Item #: 9SIVB8UKAJ6586
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for H825EF-02 FT7T6 Workstation Power Supply 825W T5810 T7810 ...
- Model #: 726099251757
- Item #: 9SIVRWKKXD1504
- Return Policy: Nytke team Return Policy
Refurbished: For 3900 3901 3991 3990 3660 500W Power Supply XE4 XPS8950 12th ...
- Model #: 726727729979
- Item #: 9SIVRWKKXA3181
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for N18010 switching power supply RG-PA1600I module 1600W ...
- Model #: 726099252815
- Item #: 9SIVRWKKXD1798
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for 078-000-021 850W SPS CX400 CX600 CX700 DMX
- Model #: 792597713226
- Item #: 9SIVRWKKXD4940
- Return Policy: Nytke team Return Policy
Refurbished: CP1800AC52 CP1800AC52-H Power Supply For TYCO 44-58V MAX 1800W ...
- Model #: 753525933826
- Item #: 9SIVT8HKWF2616
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: KHACHIMO 510S M420 280 G2 400 G4 m710e m720e M4000S 700-24AGR 6Pin ...
- Model #: 744623302973
- Item #: 9SIVB8UKCW6037
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FSP750-30ANB 10P power supply, 750W
- Model #: 716837092353
- Item #: 9SIVB8UKX61392
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for T5230 T2540 AC Power Supply 300-2051 DPS-510BB A 530W
- Model #: 792597726912
- Item #: 9SIVB8UKX32598
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO DL360G9 380Gen9 500W Power Supply HSTNS-PL40 723594-001 ...
- Model #: 744623315577
- Item #: 9SIVB8UKD46410
- Return Policy: Magicpower Return Policy
Refurbished: Communication Server Power Module For 3Y YM-2651K 650W
- Model #: 724780183516
- Item #: 9SIVT8HKWF3056
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 4028GR PWS-2K03P-1R 2000W CPR-2021-2M1
- Model #: 724780181604
- Item #: 9SIVB8UKA98827
- 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 X3650T Server, Power Supply 42C0766 DPS-600RB-1 A 1PCS
- Model #: 726727725834
- Item #: 9SIVRWKKXA2653
- Return Policy: Nytke team Return Policy
Refurbished: 5V40A 200W Power Supply MDK200H5
- Model #: 703454716465
- Item #: 9SIVB8UKAJ6050
- Return Policy: Magicpower Return Policy
Refurbished: 1300 Server Power Supply 330W 01H070 NPS-330CB H
- Model #: 722954988110
- Item #: 9SIVSY0KUS4030
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: KHACHIMO Power Supply For GRE 75W Power Supply GPR75-12AH PSR75-12A
- Model #: 759950245770
- Item #: 9SIVB8UKDA9295
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply INVENTRNICS 255W Power Supply EBC-255S105SV
- Model #: 703454716434
- Item #: 9SIVB8UKAJ6041
- Return Policy: Magicpower Return Policy
Refurbished: PMC30E-2 Original Disassembly Switching Power Supply 5V+-15V 30W ...
- Model #: 753525955866
- Item #: 9SIVB8UKAA8827
- Return Policy: Magicpower Return Policy
Refurbished: For H180EBS AC180EBS L180EBS D180EBS-00 power supply 12th generation ...
- Model #: 726727729283
- Item #: 9SIVRWKKXA3097
- 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.
