Power Supplies - Showing 2017 - 2040 of 17943 Products
Refurbished: 1Pcs for 450W power supply (RS-450-AMAP-F1)
- Model #: 716837092841
- Item #: 9SIVB8UKX61573
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For EX4400 Power Supply JPSU-1600-C-AC-AFO 640-107109 ...
- Model #: 792597703791
- Item #: 9SIVRWKKXD2423
- Return Policy: Nytke team Return Policy
Refurbished: For G1W-3960V Server Redundant Power Module 960W
- Model #: 722954724879
- Item #: 9SIVB8UKAA7171
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for medical power supply NSP3-150-F2S
- Model #: 792597985968
- Item #: 9SIVB8UKX57374
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for R320 R420 Server DPS-D550EMB-S0 Power Supply 550W RYMG6 ...
- Model #: 792597709434
- Item #: 9SIVRWKKXD4028
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for R6515/R7515/R6525/R7525 800W Server Power Supply MGPPC ...
- Model #: 716837088455
- Item #: 9SIVB8UKX59843
- Return Policy: Magicpower Return Policy
Refurbished: CP1800AC52 CP1800AC52-H Power Supply For TYCO 44-58V MAX 1800W ...
- Model #: 753525933826
- Item #: 9SIVT8HKWF2616
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 0.45A 24V Power Supply For VAF1024 XOMM VAF1024 X0MM
- Model #: 753525989434
- Item #: 9SIVB8UKAA7752
- Return Policy: Magicpower Return Policy
Refurbished: 2960G-24/48TC 3750G-24TS-S Power Supply 341-0098-02
- Model #: 753525957211
- Item #: 9SIVB8UKAA8975
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 400W Power Supply MP4-1S-1L-00 73-540-0623
- Model #: 759950242557
- Item #: 9SIVB8UKDA8838
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 400W Power Supply FSP400-60PFB FSP400-60PFL FSP400-70PFL ...
- Model #: 744623312446
- Item #: 9SIVB8UKD19573
- Return Policy: Magicpower Return Policy
Refurbished: PE 1600SC 450W Power Supply DPS-450FB A 02P669 0N4531 2P669
- Model #: 753525944242
- Item #: 9SIVB8UKAA5355
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For 3Y 595W Switching Power Supply YM-3591D
- Model #: 744623314334
- Item #: 9SIVB8UKD21815
- Return Policy: Magicpower Return Policy
Refurbished: For ETN CR48 Communication Power Supply CR48-3G
- Model #: 703454721322
- Item #: 9SIVB8UKAJ6586
- Return Policy: Magicpower Return Policy
Refurbished: 071-000-460 7000958-Y000 CX3-80 1200W HJ751
- Model #: 724780182762
- Item #: 9SIVB8UKA98897
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 250W Switching Power Supply EFA-250
- Model #: 726099223150
- Item #: 9SIVB8UKCU6319
- Return Policy: Magicpower Return Policy
Refurbished: OptiPlex XE2 3020 7020 9020 T1700 315W Power Supply H315ES-00 ...
- Model #: 753525934779
- Item #: 9SIVB8UKA99260
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO DPS-750AB-4A HSTNS-PD31 666375-101 674275-B21 ...
- Model #: 745635673624
- Item #: 9SIVB8UKD64795
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 2600W Power Supply SRX5600-PWR-2520-AC DCJ26002-02P
- Model #: 759950244469
- Item #: 9SIVB8UKDA9193
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO HWS100A 12V 8.5A 100W For HWS100A-12 MEA ...
- Model #: 759950247729
- Item #: 9SIVSY0KUV2620
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 40W Switching Power Supply MDS-040APS15 B MDS-040APS18 B ...
- Model #: 753525935479
- Item #: 9SIVB8UKA99384
- Return Policy: Magicpower Return Policy
Refurbished: 341-0176-03 Power Supply Used On AIR-WLC4402 WLC4404 Series Switches
- Model #: 753525984460
- Item #: 9SIVB8UKAA9125
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for ATX-1260GA1 600W industrial control server, computer power supply
- Model #: 792597716685
- Item #: 9SIVRWKKXD6704
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO TS3310 Tape Library Dedicated LTO3 4GB UDS3 FC 8-00407-01 ...
- Model #: 745635673730
- Item #: 9SIVB8UKD64793
- 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.
