Power Supplies - Showing 2209 - 2232 of 17933 Products
Refurbished: 8 serial port SFXA5201B hard disk recorder power supply DS-8632N-E8/K8 host
- Model #: 703454717431
- Item #: 9SIVB8UKAJ6147
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 500W Power Supply DPS-500AB-13 A DPS-500AB-13A ...
- Model #: 744623305035
- Item #: 9SIVB8UKD01865
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO RD650 RD550 RD450 RD350 750W Switching Power Supply ...
- Model #: 744623301105
- Item #: 9SIVB8UKCV8114
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Workstation Z4 G4 750W Power Supply DPS-750AB-36 A ...
- Model #: 744623313009
- Item #: 9SIVB8UKD19620
- Return Policy: Magicpower Return Policy
Refurbished: ESR-48-06A A, ESR-48-06A Power Module
- Model #: 722954987717
- Item #: 9SIVB8UKAA6514
- Return Policy: Magicpower Return Policy
Refurbished: HP EliteDesk 800 G2 SFF Power Supply 200w PSU- 901912-003 901912-004
- Model #: 981-754125000223433
- Item #: 9SIVSYTKUT6032
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: Power Supply NPS42-M 100-24VAC
- Model #: 753525990324
- Item #: 9SIVB8UKAA7813
- Return Policy: Magicpower Return Policy
Refurbished: For 10-pin power supply HK350-12PP PCE026 FSP250-30AGBAA
- Model #: 752804580393
- Item #: 9SIVRWKKXB2526
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO PSU For 3Y DC 720W Switching Power Supply YM-2721D
- Model #: 744623298863
- Item #: 9SIVB8UKCU6479
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 80plus Bronze 2U 600W Switching Power Supply GW-EPS2U600
- Model #: 744623306285
- Item #: 9SIVB8UKD01943
- Return Policy: Magicpower Return Policy
Refurbished: R150-5 Original Disassembly Switching Power Supply 5V/30A
- Model #: 753525986594
- Item #: 9SIVB8UKAA8570
- Return Policy: Magicpower Return Policy
Refurbished: For Mining Power Supply for APW7-12-1800 1800W APW7+ S9 L3+ 852 10*6P ...
- Model #: 724780183509
- Item #: 9SIVB8UKA98997
- Return Policy: Magicpower Return Policy
Refurbished: AHF-2DC-2500W-PE 2500W Switching Power Supply ECD15020025/01 ...
- Model #: 753525934557
- Item #: 9SIVB8UKA99269
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO ACE450F 450W Power Supply AC4-BMN2H-00
- Model #: 759950240218
- Item #: 9SIVB8UKDA0364
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Small 1U 350W Switching Power Supply DPS-350AB-24 H ...
- Model #: 744623305219
- Item #: 9SIVB8UKD01885
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 2U Rated 400W Peak 500W Switching Power Supply SD-3500U ...
- Model #: 744623311852
- Item #: 9SIVB8UKD19645
- Return Policy: Magicpower Return Policy
Refurbished: AC-044 J DPS-600RB A Power Distribution Board Power Backboard
- Model #: 703454719428
- Item #: 9SIVB8UKAJ6370
- Return Policy: Magicpower Return Policy
Refurbished: For GW-CRPS550 12V 45A 550W Server Power Supply
- Model #: 703454720103
- Item #: 9SIVB8UKAJ6465
- Return Policy: Magicpower Return Policy
Refurbished: For eNSP3-450P power supply eNSP3-450P-S20-H1V
- Model #: 726727731682
- Item #: 9SIVRWKKXA3380
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for DS-C48-FAN 800-32051-04 DS-C9148-K9
- Model #: 792597726585
- Item #: 9SIVRWKKXD9613
- Return Policy: Nytke team Return Policy
Refurbished: For DPS-600GB B server power supply 600W
- Model #: 726727728170
- Item #: 9SIVRWKKXA2823
- Return Policy: Nytke team Return Policy
Refurbished: PSF200FP-69 PSF180FP-69
- Type: ATX
- Model #: 703454727591
- Item #: 9SIVSYTKUT5797
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: RH 2288HV2 V3 V5 800W Server Power Supply TPS800-12D 02270113
- Model #: 722954724572
- Item #: 9SIVB8UKAA7102
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for ST-460USE/350UAC 1U Industrial Firewall Server Power Supply
- Model #: 792597716791
- Item #: 9SIVRWKKXD6692
- 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.
