Power Supplies - Showing 1969 - 1992 of 17989 Products
Refurbished: 1Pcs for PS-2551-7L server power supply 12V, 45A, 550W redundant power ...
- Model #: 792597721009
- Item #: 9SIVRWKKXD7968
- Return Policy: Nytke team Return Policy
Refurbished: For 3P Pacific Power Products KPP250-7A 250W Power Supply
- Model #: 726727722482
- Item #: 9SIVRWKKXA2253
- Return Policy: Nytke team Return Policy
Refurbished: infortrend Power Supply 9273CPSU-0010 460W IFRP-462
- Model #: 724780778439
- Item #: 9SIVB8UKAA6654
- Return Policy: Magicpower Return Policy
Refurbished: P500 P510 P700 P710 650W 54Y8908 PS-3651-1L-LF
- Model #: 753525932799
- Item #: 9SIVB8UKA99064
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO NV-175 175W Power Supply NV1-4G5TTH-F
- Model #: 759950246371
- Item #: 9SIVB8UKDA9389
- Return Policy: Magicpower Return Policy
Refurbished: For Z440 700W Power Supply 719795-004 858854-001 DPS-700AB
- Model #: 752804574675
- Item #: 9SIVRWKKXB1873
- Return Policy: Nytke team Return Policy
Refurbished: EVGA SuperNOVA 1000 G+, 80 Plus Gold 1000W, Fully Modular, FDB Fan, 10 Year ...
- Model #: 120-GP-1000-X1
- Item #: 9SIVMRNKWU0041
- Return Policy: dnajknwd Return Policy
Refurbished: 1pcs for P5 P7 P8 Workstation 1000W 1400W Power Supply 5P50V03207 ...
- Model #: 716837083672
- Item #: 9SIVB8UKX57575
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Monitoring Module Power Supply EPMU01
- Model #: 759950243929
- Item #: 9SIVB8UKDA9098
- Return Policy: Magicpower Return Policy
Refurbished: Powerleader 1U 600W Switching Power Supply U1A-C20600-D
- Model #: 753525941258
- Item #: 9SIVB8UKAA4979
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for PA-2521-1H switching power supply PSL520-AD
- Model #: 792597715022
- Item #: 9SIVRWKKXD6038
- 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: ETP4830 ETP4830-A1 Power Supply 48V 30A
- Model #: 753525948578
- Item #: 9SIVB8UKAA0028
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Switching Power Supply For TYCO 300-1852 V215 V245 V445 X4200 ...
- Model #: 759950241680
- Item #: 9SIVB8UKDA8721
- Return Policy: Magicpower Return Policy
Refurbished: For 500W D500EPM-00 3669 5080 3690 38813688 8940 5070MT Power Supply
- Model #: 726727729078
- Item #: 9SIVRWKKXA2862
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 3010 7010 9010 790 390 SFF Power Supply H240AS-00 AC240AS-00
- Model #: 792597728145
- Item #: 9SIVB8UKX32960
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for NF5460M4 NF8480 M4 Server DC FSP800-20ERM-LR 48V Power Supply
- Model #: 716837085720
- Item #: 9SIVB8UKX58626
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 3080 5080 7080 XE3 3890 3690 3881 Power supply 500W H500EPM-00
- Model #: 716837089131
- Item #: 9SIVB8UKX60302
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for CPR-1221-1M2LF 1200W server power supply CPR-1221-1M21
- Model #: 792597722969
- Item #: 9SIVRWKKXD8628
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO AC220V Only Switching Power Supply FM-AT48
- Model #: 744623316970
- Item #: 9SIVB8UKD64479
- Return Policy: Magicpower Return Policy
Refurbished: 400W Power Supply ACE-841AP
- Model #: 753525942057
- Item #: 9SIVB8UKAA5097
- 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 800W MP6-2Q-1E-4EE-NNN-0N 73-560-6076
- Model #: 759950245039
- Item #: 9SIVB8UKDA9240
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for PUI108E-2Z 100W
- Model #: 792597724048
- Item #: 9SIVRWKKXD8922
- Return Policy: Nytke team 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.
