Power Supplies - Showing 2233 - 2256 of 17940 Products
Refurbished: For X235 Server Power X235 49P2177 49P2178
- Model #: 726727725018
- Item #: 9SIVRWKKXA2600
- Return Policy: Nytke team Return Policy
Refurbished: Small 1U 270W Switching Power Supply FSP270LE
- Model #: 753525944457
- Item #: 9SIVB8UKAA5386
- Return Policy: Magicpower Return Policy
Refurbished: For R360 Server Power Supply DPS-730AB A 730W D37235-001
- Model #: 726727723540
- Item #: 9SIVRWKKXA2453
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for L/N250E-S0 R210II R220 V38RM CKMX0 6HTWP C627N Power Supply
- Model #: 792597710799
- Item #: 9SIVRWKKXD4381
- Return Policy: Nytke team Return Policy
Refurbished: For Switched Power Supply U1A-D10550-DRB-H 550W
- Model #: 722954731860
- Item #: 9SIVSY0KUS8881
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For FSP090-AAAN2 FSP090-DMAB2 FSP100-RDB FSP090-AABN2 24V Power ...
- Model #: 726727819410
- Item #: 9SIVRWKKXB1392
- Return Policy: Nytke team Return Policy
Refurbished: For 400/800 GB Linear Tape Open LTO3 SCSI Drives 23R4808
- Model #: 726727776270
- Item #: 9SIVRWKKXA7192
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for DPR4850-E-DGC communication power supply ESR-4856F Z 48V50A
- Model #: 716837094838
- Item #: 9SIVB8UKX62283
- Return Policy: Magicpower Return Policy
Refurbished: For S500 700 A711J E4200i E4600i E4800i E4920i Power Supply ADP-130BFB
- Model #: 726727733648
- Item #: 9SIVRWKKXA3824
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO HWS100A 12V 8.5A 100W For HWS100A-12 MEA ...
- Model #: 759950247729
- Item #: 9SIVSY0KUV2620
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: KHACHIMO Power Supply For FSP FLEX 1U K39 600W Power Supply ...
- Model #: 759950244612
- Item #: 9SIVB8UKDA9206
- Return Policy: Magicpower Return Policy
Refurbished: 5010 Series Switches 341-0295-06 550W N5K-PAC-550W
- Model #: 753525956092
- Item #: 9SIVB8UKAA8824
- Return Policy: Magicpower Return Policy
Refurbished: For RX300 S5/S6 Server Power Module DPS-800GB-3 A
- Model #: 752804574736
- Item #: 9SIVRWKKXB1882
- Return Policy: Nytke team Return Policy
Refurbished: AC240AS-01 H240AS-01 L240AS-00 3WN11 2TXYM Power Supply
- Model #: 722954722011
- Item #: 9SIVB8UKAA6829
- Return Policy: Magicpower Return Policy
Refurbished: For H180EBS AC180EBS L180EBS D180EBS-00 power supply 12th generation ...
- Model #: 726727729283
- Item #: 9SIVRWKKXA3097
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for DZY-48/50H DZY-48/50HI communication power module
- Model #: 716837095309
- Item #: 9SIVB8UKX62446
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For B200M4 Control Module UCS-IOM-2208XP UCS 2204XP 68-3718-06
- Model #: 716837096207
- Item #: 9SIVB8UKX62725
- Return Policy: Magicpower Return Policy
Refurbished: For DPS-550AB-23A switch 500W
- Model #: 752804577188
- Item #: 9SIVRWKKXB2157
- Return Policy: Nytke team Return Policy
Refurbished: For 6SL3203-0CD21-4AA0 4kw A5E00417563
- Model #: 726727722550
- Item #: 9SIVRWKKXA2202
- Return Policy: Nytke team Return Policy
Refurbished: R620 R720 750W power supply 5NF18 D750E-S1 S3
- Model #: 703454719992
- Item #: 9SIVB8UKAJ6444
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PowerEdge 1750 320W Switching Power Supply PS-2321-1 ...
- Model #: 744623315515
- Item #: 9SIVB8UKD46434
- Return Policy: Magicpower Return Policy
Refurbished: 200W Power Supply DMP200AI RD27843 S30124-X5167-X
- Model #: 703454715482
- Item #: 9SIVB8UKAJ5916
- 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: KHACHIMO MX104 DC 800W Power Supply PWR-MX104-DC-S-D 740-045932 ...
- Model #: 759950243554
- Item #: 9SIVB8UKDA9018
- 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.
