Power Supplies - Showing 1897 - 1920 of 17942 Products
Refurbished: TDK-LAMBDA SWS300A 300W Switching Power Supply SWS300A-7R5
- Model #: 753525945164
- Item #: 9SIVB8UKA99569
- Return Policy: Magicpower Return Policy
Refurbished: Communication Power Module HRS1150-Q000
- Model #: 722954726576
- Item #: 9SIVT8HKWF3229
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: KHACHIMO Power Supply SUEMDC170
- Model #: 759950241994
- Item #: 9SIVB8UKDA8797
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for AC-DC CPA250-4530 Equipment Machine Power Supply CPA250-4530 ...
- Model #: 792597985463
- Item #: 9SIVB8UKX57223
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for X3400 X3500 Server Power Supply DPS-670BB A 24R2719 24R2720 ...
- Model #: 731029999920
- Item #: 9SIVRWKKXD1334
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply Module For M830D
- Model #: 753525989915
- Item #: 9SIVB8UKAA7798
- Return Policy: Magicpower Return Policy
Refurbished: T410 ServerPoweSupply F5XMD G686J 580W A580E-S0 D580E-S0
- Model #: 722954988028
- Item #: 9SIVB8UKAA6540
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 23-0000092-02 6505/6510 5100 switching power supply ...
- Model #: 792597723850
- Item #: 9SIVRWKKXD8899
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO IPC-547C IPC-847C 400W Switching Power Supply FSP400-60PFI ...
- Model #: 744623315706
- Item #: 9SIVB8UKD46412
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for T3600 T5600 T3610 T5610 635W 685W Power Supply 0NVC7F YP00X
- Model #: 792597984145
- Item #: 9SIVB8UKX57079
- Return Policy: Magicpower Return Policy
Refurbished: ML370G2 ML370G3 Server Power PS-5551-2 230993-001 216068-002
- Model #: 722954735707
- Item #: 9SIVB8UKAA6172
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for NE40-4 switching power supply NEPS600 48V AC power module
- Model #: 792597723485
- Item #: 9SIVRWKKXD8619
- Return Policy: Nytke team Return Policy
Refurbished: For T5810 T7810 685W workstation power supply D685EF-01 F685EF-0 CYP9P
- Model #: 792597702626
- Item #: 9SIVRWKKXD2071
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 260W H260EBM-01 3090 7090MT Dual 4-pin CPU
- Model #: 792597984282
- Item #: 9SIVB8UKX57086
- Return Policy: Magicpower Return Policy
Refurbished: For SR570 SR630 SR650 550W FSF030 Power Supply PN: 02YF622
- Model #: 726727820829
- Item #: 9SIVRWKKXB1511
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO1U 450W Switching Power Supply SD-P300ATX
- Model #: 744623310183
- Item #: 9SIVB8UKD12044
- Return Policy: Magicpower Return Policy
Refurbished: Server Power 324714-001 ML330G3 Power PS-5032-2V3 300W
- Model #: 722954734908
- Item #: 9SIVB8UKAA6089
- Return Policy: Magicpower Return Policy
Refurbished: 650W Power Supply C9K-PWR-650WACL-R 341-100844-01
- Model #: 703454715796
- Item #: 9SIVB8UKAJ5941
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PS6500E 450W Power Supply RS-PSU-450-4835-AC-1 ...
- Model #: 759950242113
- Item #: 9SIVB8UKDA8796
- Return Policy: Magicpower Return Policy
Refurbished: Medical Equipment Switch Power Supply PBA1500F-24 24V 70A 1500W
- Model #: 753525985856
- Item #: 9SIVB8UKAA8455
- Return Policy: Magicpower Return Policy
Refurbished: H3C Poe Switching Power Supply VC66B200AS HRS66-6000AD DPSN-66BP A ...
- Model #: 753525937176
- Item #: 9SIVSY0KUS2399
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: EVA6400 EVA8400 339596-601 489883-001 PS-3381-1C2 400W
- Model #: 753525987645
- Item #: 9SIVB8UKAA8748
- Return Policy: Magicpower Return Policy
Refurbished: PSU For Emacs 550W Switching Power Supply M1Z-5550V M1X-3550V ...
- Model #: M1X-3700V
- Item #: 9SIVB8UJ2S5908
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply for SH PR1100-P 1100W
- Model #: 753525984170
- Item #: 9SIVB8UKAA9063
- 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.
