Power Supplies - Showing 2353 - 2376 of 18332 Products
Refurbished: For TSR1600 Switch Communication Module Power Supply RECTIFIER
- Model #: 722954723575
- Item #: 9SIVT8HKWF3240
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: RX2540M1 1200W Power Supply S26113-E616-V50 DPS-1200AB-2 A ...
- Model #: 753525942477
- Item #: 9SIVB8UKAA5162
- Return Policy: Magicpower Return Policy
Refurbished: For MKAC-96-248000M 24v8A 8000MA
- Model #: 722954721410
- Item #: 9SIVB8UKAA6784
- Return Policy: Magicpower Return Policy
Refurbished: For A141 R48-4000E 48V 4000W Power Supply
- Model #: 722954727801
- Item #: 9SIVB8UKAA7453
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 01AC366 V5000 G2 V5030 V5020 V5010 Battery 01AC365
- Model #: 726099252839
- Item #: 9SIVRWKKXD1810
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 3010 7010 9010 790 390 SFF Power Supply H240AS-00 AC240AS-00
- Model #: 716837089797
- Item #: 9SIVB8UKX60490
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO DC 720W Power Supply PSR720-12D
- Model #: 759950247590
- Item #: 9SIVB8UKDF9414
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for T3-2 T4-2 T5-2 Power Supply 7048278 7048276 300-2344 300-2159
- Model #: 726099252327
- Item #: 9SIVRWKKXD1630
- Return Policy: Nytke team Return Policy
Refurbished: VAREL Power Supply For ZXMP S200 PWCR
- Model #: 753525988833
- Item #: 9SIVB8UKAA7665
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for PCA227 PCA222 633195-001 633196-001 sff small chassis power ...
- Model #: 792597707355
- Item #: 9SIVRWKKXD3571
- Return Policy: Nytke team Return Policy
Refurbished: 220V 20Pin Power Supply MATX-145SE-HB MATX-145SE LM-2156 P3 ...
- Model #: 753525944785
- Item #: 9SIVB8UKAA5410
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply Used On WS-C3850 Series Switches 341-0563-01 A0 440W ...
- Model #: 753525985337
- Item #: 9SIVB8UKAA9184
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 250W Switching Power Supply ENP-7025D ENP 7025D
- Model #: 744623317502
- Item #: 9SIVB8UKD64644
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO X4270 N4288 VD650 E450 6Pin 400W Power Supply PA-2251-2AB ...
- Model #: 744623304717
- Item #: 9SIVB8UKCW6213
- Return Policy: Magicpower Return Policy
Refurbished: power supply A-300AF-4.5 electronic advertising door head full-color ...
- Model #: 703454722343
- Item #: 9SIVB8UKAJ6708
- Return Policy: Magicpower Return Policy
Refurbished: Tiandong Wall Mounted Power Supply AD4810+
- Model #: 722954723551
- Item #: 9SIVB8UKAA6993
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for HK280-23PP PA- 2181-1 PCE027/028 M6201C10 Pin Desktop Power ...
- Model #: 716837096641
- Item #: 9SIVB8UKX62809
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for power supply MTW-5660V 660W industrial computer power module
- Model #: 726099252624
- Item #: 9SIVRWKKXD1793
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 400 480 G4 600 680 G3 800 880 G3 4Pin 310W Power Supply ...
- Model #: 744623303000
- Item #: 9SIVB8UKCW6049
- Return Policy: Magicpower Return Policy
Refurbished: R840 R940 R740XD 2000W Switching Power Supply DPS-2000EB A D2000E-S0 ...
- Model #: 753525935622
- Item #: 9SIVB8UKA99398
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for ZXDU58 B121 (V2.0) -CSU communication power supply, monitoring ...
- Model #: 792597717880
- Item #: 9SIVRWKKXD7014
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO XPS 9000 435 475W Switching Power Supply VP-09500073-000 ...
- Model #: 744623316161
- Item #: 9SIVB8UKD46453
- Return Policy: Magicpower Return Policy
Refurbished: 300W AC3-TCCB-00 AC3-OHRM-00 AC3-FWCB-00 AC3-OHWM-00 ...
- Model #: 753525947458
- Item #: 9SIVB8UKA99881
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for TPS800-12D DC/DC Power Supply 38-72VDC to 12V 65A DC Power ...
- Model #: 792597720293
- Item #: 9SIVRWKKXD7808
- 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.
