Power Supplies - Showing 1921 - 1944 of 17993 Products
Refurbished: Z820 Workstation 1125W Power Supply DPS-1125AB A 716646-002 ...
- Model #: 703454717455
- Item #: 9SIVB8UKAJ6157
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for SP502-2S Power Supply 500W PWS-0049
- Model #: 792597710546
- Item #: 9SIVRWKKXD4293
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for 99 86 280 282 285 288 400 600 pro G3 G4 G5 MT Power Supply PCG002
- Model #: 726099251733
- Item #: 9SIVRWKKXD1519
- Return Policy: Nytke team Return Policy
Refurbished: AIR-PWR-5500-AC Controller Power SPACSC0-20 Switch Power Supply
- Model #: 753525986518
- Item #: 9SIVB8UKAA8586
- Return Policy: Magicpower Return Policy
Refurbished: 600 705 800 G2 160W 200W Power Supply, 792198792199-001905301-001
- Model #: 722954722738
- Item #: 9SIVB8UKAA6959
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS power supply for MR3860-50F
- Model #: 792597724291
- Item #: 9SIVRWKKXD9056
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for V3250 3252 3267 3268 3668 3669 Power Supply 6 + 4P H200NS-00
- Model #: 792597707911
- Item #: 9SIVRWKKXD3689
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for PSU4850A communication power supply 48V50A power 3000w
- Model #: 716837094074
- Item #: 9SIVB8UKX62105
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for CWT PSB350M-J3 PSB400M-J3 industrial computer power supply, ...
- Model #: 716837090311
- Item #: 9SIVB8UKX60635
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 400W Switching Power Supply LL1U400APFC
- Model #: 744623313979
- Item #: 9SIVB8UKD21816
- Return Policy: Magicpower Return Policy
Refurbished: Catalyst 3850 Switch Power Supply PWR-C1-440WDC Coupon & Discount
- Model #: 753525934663
- Item #: 9SIVB8UKA99264
- Return Policy: Magicpower Return Policy
Refurbished: Server Power Supply D1200E-S2 DPS-1200MB-1 B FRVCP J8HPV 01CNYW 12V ...
- Model #: 753525956856
- Item #: 9SIVB8UKAA8931
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for TD340 DPS-625AB B 03X4319 Server Power Supply 625W
- Model #: 792597725168
- Item #: 9SIVRWKKXD9378
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for FAS8020 Power supply 1300W 114-00040 TDPS-1350AB A
- Model #: 716837098201
- Item #: 9SIVB8UKX63087
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for S1200V3RP main board DPS-500WB-1 A G28822-004/5 power supply ...
- Model #: 792597710812
- Item #: 9SIVTDYKWJ0936
- Return Policy: Voltrix Return Policy
Refurbished: For Prodesk 480G4 MT 480G5 400G4 600G4 Chassis Power Supply D16-180P2A
- Model #: 726727733389
- Item #: 9SIVRWKKXA3851
- Return Policy: Nytke team Return Policy
Refurbished: CWT 20Pin SATA*8 250W Switching Power Supply KSF-250F4 KSF-200F4
- Model #: 753525945720
- Item #: 9SIVB8UKA99631
- Return Policy: Magicpower Return Policy
Refurbished: For Dawn A840-G10 Server Power Supply YM-2102F 1000W YM-2102FBR
- Model #: 722954722295
- Item #: 9SIVB8UKAA6886
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO V3500 V7000 800W Power Supply 01AC307 01AC550 TDPS-800BB ...
- Model #: 759950245855
- Item #: 9SIVB8UKDA9327
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 3Y 405W Switching Power Supply YM-5411B
- Model #: 744623305073
- Item #: 9SIVB8UKD01877
- Return Policy: Magicpower Return Policy
Refurbished: For SUN V250 Power Supply 460W 3001588-01 300-1588 AA22960 X7414A
- Model #: 722954725395
- Item #: 9SIVB8UKAA7182
- Return Policy: Magicpower Return Policy
Refurbished: PSUF-DC CR5B2PWRDC00 DC Power Module NE20E-S2E 10A
- Model #: 753525947908
- Item #: 9SIVB8UKA99915
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for R5500G4 CRPS800B 800W Redundant PSM-AC-M
- Model #: 792597709700
- Item #: 9SIVRWKKXD4129
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for SB-4120X Storage Server SHRD-400P-P
- Model #: 716837097389
- Item #: 9SIVB8UKX62911
- 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.
