Power Supplies - Showing 2257 - 2280 of 17990 Products
Refurbished: R430 R440 450W D450E-S0 Cold Power Supply With Cable Power Supply P34M3
- Model #: 722954737770
- Item #: 9SIVB8UKAA6412
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for RKW03-70R 3.3V 70A Switching Power Supply 1.6-4.3v
- Model #: 792597720194
- Item #: 9SIVRWKKXD7840
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 1U 150W LWP-F315 Power Supply LWP-F315 LWP320 LWP330 ...
- Model #: 744623311456
- Item #: 9SIVB8UKD12235
- Return Policy: Magicpower Return Policy
Refurbished: For HPSANSWITCH2/32311244-001 DCJ3002-01P Fiber Cabinet Power ...
- Model #: 726727722246
- Item #: 9SIVRWKKXA2222
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for T5600 T3600 NVC7F D635EF-00 1K45H DPS-635AB A Power Supply
- Model #: 792597711703
- Item #: 9SIVRWKKXD4667
- Return Policy: Nytke team Return Policy
Refurbished: PAC-350WB-L Power Module 350W Supports AR22/32/6280/6300 Routing ...
- Model #: 722954732423
- Item #: 9SIVB8UKAA5851
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For NETAPP FAS2050 855W Switching Power Supply YM-3901A ...
- Model #: 744623314884
- Item #: 9SIVB8UKD21896
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for X3550 server power supply 7001134-Y000 7001134-Y002 39Y7189 ...
- Model #: 792597709052
- Item #: 9SIVRWKKXD3940
- Return Policy: Nytke team Return Policy
Refurbished: For P1S-2300V-R Redundant Power Supply Module P1S2-5300V4V 300W
- Model #: 726727774801
- Item #: 9SIVRWKKXA4188
- Return Policy: Nytke team Return Policy
Refurbished: Communication Power Supply S31PT3E0203S
- Model #: 722954726712
- Item #: 9SIVB8UKAA7362
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for SX500-LG 500W SFX-L Power Supply
- Model #: 792597717040
- Item #: 9SIVRWKKXD6696
- Return Policy: Nytke team Return Policy
Refurbished: DS1200-3 DS1200-3-02 1200W Server Redundant Power Supply
- Model #: 722954730108
- Item #: 9SIVB8UKAA5619
- Return Policy: Magicpower Return Policy
Refurbished: PBA1500F-48 Original Disassembly Miniaturized High Power Thin Power ...
- Model #: 753525957068
- Item #: 9SIVB8UKAA8921
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for SS-350HT DSJ200P ACE-716T ACE-716C FSP250-50FRB API4PC01 ...
- Model #: 716837087014
- Item #: 9SIVB8UKX59353
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for FSP350-60GHS 350W POE Recorder, Medical, Power Supply
- Model #: 792597715732
- Item #: 9SIVRWKKXD6391
- Return Policy: Nytke team Return Policy
Refurbished: For G10 800W 865436-101 865435-001 866793-001 865438-B21
- Model #: 726727817751
- Item #: 9SIVRWKKXB1298
- Return Policy: Nytke team Return Policy
Refurbished: For GW-ERP2U550B-2H 2U550W Redundant GW-ERP1U550B Power Module
- Model #: 726727819434
- Item #: 9SIVRWKKXB1371
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply PMMK450S-24-E
- Model #: 753525992175
- Item #: 9SIVB8UKAA8223
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO SGD003 Industrial Power Supply P/N: SGD-003-1N0G S/N: ...
- Model #: 745635673396
- Item #: 9SIVB8UKD64752
- Return Policy: Magicpower Return Policy
Refurbished: For FSP065-REBN2 FSP065-10AABA FSP065-REBN2-R FSP065-10AADA Power ...
- Model #: 726727819380
- Item #: 9SIVRWKKXB1440
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 24V 25W For LPS25
- Model #: 759950239526
- Item #: 9SIVB8UKDA0286
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For FSP 1U -5V 300W Switching Power Supply FSP300-601UD
- Model #: 744623303222
- Item #: 9SIVB8UKCW6043
- Return Policy: Magicpower Return Policy
Refurbished: FSP300-60GLC 300W 4U ATX Industrial Power Supply
- Model #: 753525947694
- Item #: 9SIVB8UKA99927
- Return Policy: Magicpower Return Policy
Refurbished: PLA30F-24 30W INPUT AC100-240V 50-60Hz 0.7A OUTPUT 24V 1.3A AC/DC ...
- Model #: 724780182472
- Item #: 9SIVB8UKA98925
- 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.
