Power Supplies - Showing 2185 - 2208 of 17993 Products
Refurbished: 1PCS For 31P1795 31P1741 DS8800 8GB 4-port fiber module FC DA card
- Model #: 716837095996
- Item #: 9SIVB8UKX62636
- Return Policy: Magicpower Return Policy
Refurbished: 560S 546S 620S 545S power supply DPS-250AB-25A Hangjia HK340-71FP
- Model #: 703454721582
- Item #: 9SIVB8UKAJ6650
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO WepeX 1800W Microwave Equipment Power Supply
- Model #: 745635674430
- Item #: 9SIVB8UKDA0164
- Return Policy: Magicpower Return Policy
Refurbished: For PBA1500F-12 Power Supply AC/DC CONVERTER 12V 1500W
- Model #: 703454717943
- Item #: 9SIVB8UKAJ6213
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Small 1U 150W Switching Power Supply FSP150-50LH
- Model #: 744623313542
- Item #: 9SIVB8UKD21752
- Return Policy: Magicpower Return Policy
Refurbished: 241115.815 FLATPACK2 220/2000 HE Output 245.3V 8.15A 2000W For Eltek ...
- Model #: 724780183172
- Item #: 9SIVB8UKA98965
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For XP SDS120PS12
- Model #: 753525991338
- Item #: 9SIVB8UKAA8021
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For GPM225-24
- Model #: 753525988581
- Item #: 9SIVT8HKWF2632
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: JPSU-650W-DC-AFI 740-038949 Switch Power Supply 650W
- Model #: 722954723056
- Item #: 9SIVB8UKAA6940
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for IPC-610 L H PC FSP250-60ATV(PF) 250W with -5V
- Model #: 792597714537
- Item #: 9SIVRWKKXD5845
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 2030W Power Supply DPST-2030AB D
- Model #: 759950248740
- Item #: 9SIVB8UKDF9522
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 400W Switching Power Supply P2H-5400V
- Model #: 726099222184
- Item #: 9SIVB8UKCU6135
- Return Policy: Magicpower Return Policy
Refurbished: Server Power Module 650W M1U-2650V 4H
- Model #: 724780183806
- Item #: 9SIVB8UKA99020
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for PAC-1K2WA-B switching power supply 02311GLM, 1200W AC & 240V
- Model #: 792597719181
- Item #: 9SIVRWKKXD7478
- Return Policy: Nytke team Return Policy
Refurbished: For Power-one Power Supply PALS400-2482G
- Model #: 722954721786
- Item #: 9SIVB8UKAA6830
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply M1R-2400V 400W
- Model #: 753525932522
- Item #: 9SIVB8UKA99051
- Return Policy: Magicpower Return Policy
Refurbished: 350W Power Supply ST-350BKP
- Model #: 703454714652
- Item #: 9SIVB8UKAJ5740
- Return Policy: Magicpower Return Policy
Refurbished: IPC Power Supply A5E00166828 6EW1811-8AA
- Model #: 753525932980
- Item #: 9SIVB8UKA99134
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For V5000 V3700 00Y2527 00L4598 R0793-F0200-01
- Model #: 716837095811
- Item #: 9SIVB8UKX62614
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 350W Switching Power Supply FSP350-60PFG FSP350-70PFL ...
- Model #: 744623303277
- Item #: 9SIVB8UKCW6064
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for LSPM2150A, PSR150-A/A1, LSKM2150A 150W power supply
- Model #: 716837084051
- Item #: 9SIVB8UKX57681
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for TC4600 Power Supply DS 2000-3 - 002 DS 2000-3 2000W Server Power ...
- Model #: 792597727674
- Item #: 9SIVB8UKX32813
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 70W Power Supply REL-70-4006
- Model #: 745635675239
- Item #: 9SIVB8UKDA0307
- Return Policy: Magicpower Return Policy
Refurbished: Communication Power Monitoring Module PMU01B
- Model #: 703454718131
- Item #: 9SIVB8UKAJ6293
- 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.
