Power Supplies - Showing 2377 - 2400 of 18293 Products
Refurbished: DL380G3 DC Power 400W 274,401-001 251,942-002 DD-3401-1C1
- Model #: 722954734588
- Item #: 9SIVB8UKAA6075
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for S7703 S7706/7712 W2PSA0800 Switching Power Supply
- Model #: 792597724857
- Item #: 9SIVRWKKXD9225
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for ST-250UAE/UAG-05E 250W 1U Industrial Computer Firewall Soft ...
- Model #: 792597717170
- Item #: 9SIVRWKKXD6860
- Return Policy: Nytke team Return Policy
Refurbished: For Cash Register HK200 HK300 Power Supply GW-FLX1205 Dual 12V Rated ...
- Model #: 726727728842
- Item #: 9SIVRWKKXA2939
- Return Policy: Nytke team Return Policy
Refurbished: 1150W Switching Power Supply HRS1150-9000
- Model #: 753525936858
- Item #: 9SIVB8UKA99479
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for monitoring power supply DPS-200PB-208A video recorder host power ...
- Model #: 716837089216
- Item #: 9SIVB8UKX60287
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO WS-C4948E-F DC 300W Power Supply PWR-C49-300DC-F ...
- Model #: 759950245978
- Item #: 9SIVB8UKDA9370
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for HK280-72PP PCE025 FSP180-20TGBAB TFX 10-pin small power ...
- Model #: 792597706402
- Item #: 9SIVRWKKXD3256
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 300-1666-02 01 300-1906 300-1583 B1500 Power Supply EPAP-420 ...
- Model #: 716837085126
- Item #: 9SIVB8UKX58430
- Return Policy: Magicpower Return Policy
Refurbished: 510S-07ICB Power Supply AIO 700-24AGRPCH018 PA-1181-7 180W
- Model #: 722954987526
- Item #: 9SIVB8UKAA6486
- Return Policy: Magicpower Return Policy
Refurbished: For GW-ERP2U700 (90 +) 730W Modular Server Power Supply
- Model #: 726727722420
- Item #: 9SIVRWKKXA2287
- Return Policy: Nytke team Return Policy
Refurbished: Communication Power Module R4850N1
- Model #: 703454718797
- Item #: 9SIVB8UKAJ6316
- Return Policy: Magicpower Return Policy
Refurbished: For GW-EPS2U850 Rated 850W Dual 8P
- Model #: 752804577829
- Item #: 9SIVRWKKXB2267
- Return Policy: Nytke team Return Policy
Refurbished: server communication power module PS-2461-7H 460W
- Model #: 722954988400
- Item #: 9SIVT8HKWF2835
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: KHACHIMO 24V2.2A 50W Power Supply CFS50-24
- Model #: 759950243622
- Item #: 9SIVB8UKDA9046
- Return Policy: Magicpower Return Policy
Refurbished: PCA1000F-48 1000W INPUT 100-240VAC 50-60Hz 12.0A OUTPUT 48V 22A ...
- Model #: 753525934410
- Item #: 9SIVB8UKA99259
- Return Policy: Magicpower Return Policy
Refurbished: For HITACHI SAS Cabinet RS-1220 Disk Cabinet Power Supply ...
- Model #: 722954728198
- Item #: 9SIVB8UKAA7506
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for PCSA-300P-X2S Power Supply
- Model #: 716837085447
- Item #: 9SIVB8UKX58667
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for CRPS800C 800W server power supply
- Model #: 716837084853
- Item #: 9SIVB8UKX58409
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO T7920 1400W Power Supply H1400EF-00 2CTMC 02CTMC
- Model #: 759950243721
- Item #: 9SIVB8UKDA9037
- Return Policy: Magicpower Return Policy
Refurbished: PELCO VCD5000 400W Power Supply EFAP-402
- Model #: 753525945898
- Item #: 9SIVB8UKA99694
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 250W Power Supply F250AD-00 L250AD-00 HU250AD-00 ...
- Model #: 726099221880
- Item #: 9SIVB8UKCU6157
- Return Policy: Magicpower Return Policy
Refurbished: BCH 8852 2880W Power Supply 39Y7350 39Y7349 AA23920L 39Y7364
- Model #: 722954736681
- Item #: 9SIVB8UKAA6268
- Return Policy: Magicpower Return Policy
Refurbished: Extreme 1100W Switching Power Supply PSSF112102A 800563-00-07
- Model #: 753525945904
- Item #: 9SIVB8UKA99698
- 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.
