Power Supplies - Showing 2281 - 2304 of 17979 Products
Refurbished: Industrial Medical Equipment Power Supply 6V/2.5A For Lambda EWS15-6
- Model #: 724780778668
- Item #: 9SIVB8UKAA6651
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For EVA4400 AG638-04500 AG638-60410 461494-005 AG638B IO ...
- Model #: 792597702725
- Item #: 9SIVRWKKXD2230
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for GPS-450AA-100A REV: 03F Power Supply 24 + 8 PFC
- Model #: 716837092629
- Item #: 9SIVB8UKX61507
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO X3650 X3550 750W Power Supply 7001605-J000 7001605-J002 ...
- Model #: 744623303376
- Item #: 9SIVB8UKCW6104
- Return Policy: Magicpower Return Policy
Refurbished: DS850-9-401 48V 17.5A server power supply
- Model #: 703454722688
- Item #: 9SIVB8UKAJ6746
- Return Policy: Magicpower Return Policy
Refurbished: New For RSEL-2002W TDK-Lambda EMC 2A 250V
- Model #: 753525991161
- Item #: 9SIVB8UKAA8051
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO WepeX 1000BX air-cooled microwave equipment power supply ...
- Model #: 745635674324
- Item #: 9SIVB8UKDA0180
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 10-Pin HK280-23PP/21 PCE027/028 PA-2181-1 small power supply
- Model #: 792597706419
- Item #: 9SIVRWKKXD3221
- Return Policy: Nytke team Return Policy
Refurbished: GW-6800 (90+) 600W For GreatWali Power Supply Rated 600W Dragon Power ...
- Model #: 724780182151
- Item #: 9SIVB8UKA98848
- Return Policy: Magicpower Return Policy
Refurbished: For APE0C4 ELOG SP50A35155 Power Supply 180W Mini 6-pin Interface
- Model #: 722954728259
- Item #: 9SIVB8UKAA7507
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1000W Power Supply PAC1K2S12-CB
- Model #: 759950247798
- Item #: 9SIVB8UKDF9442
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO FLEX POS NAS ATM Small 1U 300W Switching Power Supply ...
- Model #: 744623314778
- Item #: 9SIVB8UKD21894
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 800W Power Supply DPS-800AB-32 A DPS-800AB-32A
- Model #: 759950248153
- Item #: 9SIVB8UKDF9483
- Return Policy: Magicpower Return Policy
Refurbished: R4815N1 R4815N Communication Power Supply
- Model #: 703454717660
- Item #: 9SIVB8UKAJ6194
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for CRPS800N2 800W server power supply
- Model #: 792597709632
- Item #: 9SIVRWKKXD4036
- Return Policy: Nytke team 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: 1pcs for switching power supply repair GEN3300W
- Model #: 792597722266
- Item #: 9SIVRWKKXD8430
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Switching Power Supply For POWERL 12V3A Power Supply ...
- Model #: 759950244230
- Item #: 9SIVB8UKDA9132
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for ZKS-300WX-2U ZKS-200ATX-1U ZKS-350WX-2U ZKS-400WX-2U ...
- Model #: 716837087489
- Item #: 9SIVB8UKX59596
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Liteon 6Pin 300W Power Supply PA-2301-3 D17-300P2A
- Model #: 744623312705
- Item #: 9SIVB8UKD19579
- Return Policy: Magicpower Return Policy
Refurbished: New Switching Power Supply HITACHI Power Adapter PS2832
- Model #: 703454715154
- Item #: 9SIVB8UKAJ5876
- Return Policy: Magicpower Return Policy
Refurbished: ER4850S2 Communication Power Module Perfect Test
- Model #: 753525933260
- Item #: 9SIVT8HKWF2831
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: SQV140-1243-A (L3) Industrial Medical Equipment American SSI Switching ...
- Model #: 753525949599
- Item #: 9SIVB8UKAA0158
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Standard 1U 400W Switching Power Supply DPS-400CB A
- Model #: 744623317182
- Item #: 9SIVB8UKD64515
- 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.
