Power Supplies - Showing 2281 - 2304 of 17939 Products
Refurbished: PWR SUPPLY, 85W, HP-P1457F3 REV.H04, DP/N 0008765D
- Model #: HP-P1457F3
- Item #: 9SIVSYTKUT3514
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: 1Pcs for R630 R640 Power Supply S26113-E504-V70 W700WC3
- Model #: 792597985920
- Item #: 9SIVB8UKX57407
- Return Policy: Magicpower Return Policy
Refurbished: CRPS 550W Switching Power Supply DPS-550AB-36 B DPS-550AB-36B
- Model #: 753525944389
- Item #: 9SIVB8UKAA5368
- Return Policy: Magicpower Return Policy
Refurbished: For 683241-001 682373-001 580W 3PAR M6710
- Model #: 726727820850
- Item #: 9SIVRWKKXB1513
- Return Policy: Nytke team Return Policy
Refurbished: Z PRO 9228 815W Switching Power Supply AP15FS20 API5FS20 39Y7272 ...
- Model #: 753525946130
- Item #: 9SIVB8UKA99697
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 550W Switching Power Supply CAA-550CT A
- Model #: 744623310268
- Item #: 9SIVB8UKD12070
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 650W Power Supply FSP650-80GLC FSP650-80GLN ...
- Model #: 744623304281
- Item #: 9SIVB8UKCW6184
- Return Policy: Magicpower Return Policy
Refurbished: For GW-T200SLB-TF built-in round port power supply
- Model #: 752804579915
- Item #: 9SIVRWKKXB2532
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO PSU For Netapp FAS2040 FAST2020 675W Switching Power Supply ...
- Model #: 726099222986
- Item #: 9SIVB8UKCU6300
- Return Policy: Magicpower Return Policy
Refurbished: PSL180-AD-H Switch Power Supply S5600-26C 52C S5624P 5648P
- Model #: 722954733574
- Item #: 9SIVB8UKAA5965
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for ETP4890-A2 Switching Power Supply 48V90A R4830G
- Model #: 716837094463
- Item #: 9SIVB8UKX62119
- Return Policy: Magicpower Return Policy
Refurbished: OptiPlex 580 760 780 960 980 Black 24Pin 235W Power Supply FR610 PW116 ...
- Model #: 753525935318
- Item #: 9SIVB8UKA99327
- Return Policy: Magicpower Return Policy
Refurbished: VLT80-4004 For EOS 70W Device Power Supply
- Model #: 753525949780
- Item #: 9SIVB8UKAA0139
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO ALPHASERVER ES40 ES45 720W Power Supply API-7650 ...
- Model #: 759950248603
- Item #: 9SIVB8UKDF9517
- 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: SD-3350U1U Industrial Control Server Computer Case 350W
- Model #: 703454718643
- Item #: 9SIVB8UKAJ6303
- Return Policy: Magicpower Return Policy
Refurbished: NEMIC-LAMBDA 5V5A 12V2.5A -12V0.5A 60W Power Supply ZT60-522
- Model #: 753525944822
- Item #: 9SIVB8UKA99571
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for GW-A150HV19 19V7.9A 150W power supply
- Model #: 792597714865
- Item #: 9SIVRWKKXD5863
- Return Policy: Nytke team Return Policy
Refurbished: For YM-5681H YM-2681H Server 700W Power Module
- Model #: 752804577027
- Item #: 9SIVRWKKXB2147
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO CPCIAC-3U-300W 900-4002-20 02090028-02 PS-4002
- Model #: 759950246326
- Item #: 9SIVB8UKDA9368
- Return Policy: Magicpower Return Policy
Refurbished: PWS-2K04A-1R Server Power Supply 2000W
- Type: ATX
- Model #: 703454923832
- Item #: 9SIVSYTKUT3513
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: For X1F2-60V X1F-60V Power Supply
- Model #: 726727731743
- Item #: 9SIVRWKKXA3424
- Return Policy: Nytke team Return Policy
Refurbished: For R8500 R5300 G3 PSM-AC-800W PPC33 A018 Server Power Supply
- Model #: 726727775297
- Item #: 9SIVRWKKXA4385
- 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
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.
