Power Supplies - Showing 2353 - 2376 of 18293 Products
Refurbished: 1PCS For 43W4401 43W4404 46C9276 46C9274
- Model #: 716837095880
- Item #: 9SIVB8UKX62593
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 56V16.5A 920W Switching Power Supply PSR920-54A-B ...
- Model #: 759950243745
- Item #: 9SIVB8UKDA9045
- Return Policy: Magicpower Return Policy
Refurbished: For PS-2112-5L power supply 1200W server power supply PS-2112
- Model #: 726727820393
- Item #: 9SIVRWKKXB1512
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for FSP180-50FEB FLEX server, power supply 180W
- Model #: 792597726028
- Item #: 9SIVRWKKXD9516
- Return Policy: Nytke team Return Policy
Refurbished: For GIN-3800V 800W Server Power Module
- Model #: 726099254178
- Item #: 9SIVRWKKXD2068
- Return Policy: Nytke team Return Policy
Refurbished: For Communication Power CP2000AC54PE-H Power Module CP2000AC54PE
- Model #: 722954736698
- Item #: 9SIVT8HKWF2602
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1Pcs for SG6016 95P3651 95P3650 B1015 Supply 7214-1U2 Power Supply
- Model #: 792597984503
- Item #: 9SIVB8UKX57084
- Return Policy: Magicpower Return Policy
Refurbished: TP4830H Wall Mounted Communication Power Cabinet 48V30A
- Model #: 722954727917
- Item #: 9SIVB8UKAA7451
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for Power supply 500W PCM001 PA-2301-3PC PA-1181-36
- Model #: 792597713349
- Item #: 9SIVRWKKXD4916
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for ZXD5000 V6.0 48V100A 6000W power
- Model #: 716837093558
- Item #: 9SIVB8UKX61937
- Return Policy: Magicpower Return Policy
Refurbished: D06S 660S V270S Power Supply PS-5221-04 DPS-220UB-3 B GW-FLEX180 ...
- Model #: 753525935509
- Item #: 9SIVB8UKA99396
- Return Policy: Magicpower Return Policy
Refurbished: FSP350-601U 1U Server Power Supply Industrial Control Power Supply ...
- Model #: 722954732652
- Item #: 9SIVB8UKAA5850
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for MRW-6420P-R (ROHS) B010480015 Server Power Module 420W
- Model #: 792597710614
- Item #: 9SIVRWKKXD4288
- Return Policy: Nytke team Return Policy
Refurbished: GPR4820D For GOLDPOWER Communication Power Rectifier Module
- Model #: 724780778699
- Item #: 9SIVT8HKWF2848
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1000W Switching Power Supply PSS-2A00V
- Model #: 753525943023
- Item #: 9SIVSYTKUS9840
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: PSU For GREAT WALL 400W Power Supply BMZ400
- Model #: 753525936865
- Item #: 9SIVB8UKA99483
- Return Policy: Magicpower Return Policy
Refurbished: For 3274669-A HDS AMS1000 DF700-RKH
- Model #: 726727775808
- Item #: 9SIVRWKKXA7158
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO PowerEdge 1550 240W Switching Power Supply DPS-202AB A ...
- Model #: 744623305028
- Item #: 9SIVB8UKD01861
- Return Policy: Magicpower Return Policy
Refurbished: 1U 180W Power Supply FSP180-50MP With 2Pin
- Model #: 703454716625
- Item #: 9SIVB8UKAJ6108
- Return Policy: Magicpower Return Policy
Refurbished: 470W Power Supply PCSA-470P-X2S PCSA-470P-E2J1
- Model #: 753525941814
- Item #: 9SIVB8UKAA5004
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for P1S-2300V-R Redundant Power Supply Module P1S2-5300V4V 300W
- Model #: 792597986057
- Item #: 9SIVB8UKX57409
- Return Policy: Magicpower Return Policy
Refurbished: New Power Supply For FSP 350W Power Supply FSP350-60LK
- Model #: 722954989162
- Item #: 9SIVB8UKAJ5598
- Return Policy: Magicpower Return Policy
Refurbished: A840R-G 3Y YM-2102F 1000W Server Power Supply YM-2102FBR
- Model #: 753525933901
- Item #: 9SIVB8UKA99206
- Return Policy: Magicpower Return Policy
Refurbished: New Switching Power Supply Board For DELTA DCS-3950 12V2.5A 30W Adapter ...
- Model #: 722954989117
- Item #: 9SIVB8UKAJ5580
- 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.
