Power Supplies - Showing 2305 - 2328 of 18339 Products
Refurbished: 2000W Power Supply GW-CDM2000AA
- Model #: 703454716267
- Item #: 9SIVSY0KUT4801
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: Power Supprly EFRP-151 150W
- Model #: 753525987058
- Item #: 9SIVB8UKAA8706
- Return Policy: Magicpower Return Policy
Refurbished: 3850 1100W Power Supply PWR-C1-1100WAC 341-0561-01 PA-1112-1A-LF ...
- Model #: 753525947007
- Item #: 9SIVB8UKA99782
- Return Policy: Magicpower Return Policy
Refurbished: For MIN-6251P Server Power Module 250W
- Model #: 726727723823
- Item #: 9SIVRWKKXA2379
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for power supply HK300-76PP 24 pins
- Model #: 716837083238
- Item #: 9SIVB8UKX57505
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 24V 4.3A 100W Power Supply PJA100F-24 PJA100F
- Model #: 759950247163
- Item #: 9SIVB8UKDF9387
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for HNAS 3080G2 3090 G2 SX325097-01 SX325097-02 Battery
- Model #: 792597724215
- Item #: 9SIVRWKKXD9063
- Return Policy: Nytke team Return Policy
Refurbished: 1U -5V 300W Power Supply TURBO-COOL 300 1U-PFC T30U-HY1
- Model #: 753525943870
- Item #: 9SIVSY0KUT5121
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1pcs for 300W FSP300-50SNV 110V
- Model #: 716837089711
- Item #: 9SIVB8UKX60503
- Return Policy: Magicpower Return Policy
Refurbished: 420W Power Supply ST-420BKV-03F
- Model #: 722954989865
- Item #: 9SIVB8UKAJ5649
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for EX4400 Power Supply JPSU-550-C-AC-AFI 550W Power Supply ...
- Model #: 716837084723
- Item #: 9SIVB8UKX58081
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for FSP300-20GSV DPS-300AB-81A POE Power Supply
- Model #: 792597714773
- Item #: 9SIVRWKKXD6074
- Return Policy: Nytke team Return Policy
Refurbished: R710 A570P-01/A570P-00/C570A-S0 570W Server Power Supply
- Model #: 703454719527
- Item #: 9SIVB8UKAJ6403
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Vostro 270s 660s 220W Power Supply DPS-220UB A DPS-220UB-5A ...
- Model #: 744623304533
- Item #: 9SIVB8UKCW6235
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for DS450DC-3 DC power supply, output 450w
- Model #: 792597712809
- Item #: 9SIVRWKKXD4851
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 7070 7090 7080 5090 3080 3070 6Pin 300W Power Supply ...
- Model #: 744623303086
- Item #: 9SIVB8UKCW6035
- Return Policy: Magicpower Return Policy
Refurbished: 3040 3046 3050 3650 3660 3655 3668 7040 8Pin 240W Power Supply ...
- Model #: 753525934960
- Item #: 9SIVB8UKA99331
- Return Policy: Magicpower Return Policy
Refurbished: For 3Y YM-7381C 380W
- Model #: 752804575283
- Item #: 9SIVRWKKXB1977
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for 720-24IKB Power Supply PA-2251-1 250W
- Model #: 726099252402
- Item #: 9SIVRWKKXD1789
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for NF5280m4 5270m4 8480 M4 550W Power Supply PS-2551-5L
- Model #: 716837091431
- Item #: 9SIVB8UKX61044
- Return Policy: Magicpower Return Policy
Refurbished: MX80 MX-5 501W 740-028288 PWR-MX80-AC-S-A YM-2651D YM-2651DAR ...
- Model #: 724780182502
- Item #: 9SIVB8UKA98891
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs For power supply DS850-9-401 48V 17.5A
- Model #: 726099253386
- Item #: 9SIVRWKKXD1882
- Return Policy: Nytke team Return Policy
Refurbished: Server Power Supply DS850-9-401 100-240V-12A
- Model #: 753525957747
- Item #: 9SIVB8UKAA9041
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Optiplex 3030 3048 180W Power Supply HU180EA-00 ...
- Model #: 744623306131
- Item #: 9SIVB8UKD01963
- 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.
