Power Supplies - Showing 2305 - 2328 of 18356 Products
Refurbished: RX200S7 DPS-800NB D S26113-E574-V52 Server Power Supply 800W
- Model #: 722954726996
- Item #: 9SIVB8UKAA7376
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for H3CS5500-28 switching power supply PA-1101-1H 12V8.5A GPL130-A ...
- Model #: 716837083139
- Item #: 9SIVB8UKX57468
- Return Policy: Magicpower Return Policy
Refurbished: For T5500 workstation power supply H875EF-00 N875EF-00 875W J556T ...
- Model #: 792597703227
- Item #: 9SIVRWKKXD2287
- Return Policy: Nytke team Return Policy
Refurbished: For ASTEC DS450-3-002 450W Power Supply G8264 G8316 Switch
- Model #: 722954724657
- Item #: 9SIVB8UKAA7130
- Return Policy: Magicpower Return Policy
Refurbished: DL 380 G4 Server Power DPS-600PB B 321632-501 321632-001
- Model #: 724780182649
- Item #: 9SIVB8UKA98900
- Return Policy: Magicpower Return Policy
Refurbished: 280 285 288 400 600 800 G1 G2 G3 4Pin 180W Power Supply 901762-002 ...
- Model #: 753525935493
- Item #: 9SIVB8UKA99392
- Return Policy: Magicpower Return Policy
Refurbished: PMC100E-1 Original Disassembly Switching Power Supply 5V+-12V
- Model #: 724780777869
- Item #: 9SIVB8UKAA7604
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for PAC-150WA 02130969 CE5810-48T4S-EI switching power supply
- Model #: 792597724871
- Item #: 9SIVRWKKXD9093
- Return Policy: Nytke team Return Policy
Refurbished: For GW-CRPSHD550D2 280V server power supply 550W
- Model #: 731029999302
- Item #: 9SIVRWKKXD1142
- Return Policy: Nytke team Return Policy
Refurbished: For Precision T3500 Power Supply H D525AF-00 H525EF-00
- Model #: 726727729504
- Item #: 9SIVRWKKXA3075
- Return Policy: Nytke team Return Policy
Refurbished: For MER048-50010(H) Power Supply For MER048-50010-RD ...
- Model #: 753525990201
- Item #: 9SIVB8UKAA7811
- Return Policy: Magicpower Return Policy
Refurbished: DC 2500W Switching Power Supply TPS2500-12D
- Model #: 753525943825
- Item #: 9SIVB8UKAA5292
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for R48-1800A Communication Power Module 1700W
- Model #: 716837095484
- Item #: 9SIVB8UKX62470
- Return Policy: Magicpower Return Policy
Refurbished: For P6000P6300 P6500 P6550 EVA4400 Power Supply 519842-001 ...
- Model #: 752804574187
- Item #: 9SIVRWKKXB1769
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for DPST-2130CB A 03-00061 Server Power Module 2130W
- Model #: 792597725939
- Item #: 9SIVRWKKXD9502
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 10Pin 350W Power Supply PCH001 PCJ007 HK280-73PP ...
- Model #: 744623313047
- Item #: 9SIVB8UKD21702
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs For Small Power Supply 200W 20+4P Motherboard Plug HEC-200FB-T
- Model #: 716837098706
- Item #: 9SIVB8UKZ24978
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 400W Switching Power Supply DPS-400AB-12 H DPS-400AB-12 B ...
- Model #: 744623314136
- Item #: 9SIVB8UKD21833
- Return Policy: Magicpower Return Policy
Refurbished: A6874A RP2600 RP3410 RP3440 Power Supply 0950-4119 0950-4621
- Model #: 722954735165
- Item #: 9SIVB8UKAA6094
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for RD450 RD550 RD650R D350 550W Power Supply Module ...
- Model #: 792597708116
- Item #: 9SIVRWKKXD3710
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for PWS-1K28D-240 PWS-2K05A-1R PWS-721P/801/702A/902-1R ...
- Model #: 792597710584
- Item #: 9SIVRWKKXD4264
- Return Policy: Nytke team Return Policy
Refurbished: For X3550 M5 00KG368 00KF688 00kf627 00KF626
- Model #: 726727816181
- Item #: 9SIVRWKKXB0659
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 500W Switching Power Supply PWS-501P-1R
- Model #: 744623312149
- Item #: 9SIVB8UKD19663
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for R230 server power supply 0P59VM 09J6JG D250E-S0 DPS-250AB-102
- Model #: 792597985999
- Item #: 9SIVB8UKX57386
- 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.
