Power Supplies - Showing 2377 - 2400 of 18339 Products
Refurbished: HRS300-9000 HRS300-9000B Efficiency Communication Power Module
- Model #: 753525957105
- Item #: 9SIVT8HKWF2618
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: For X235 Server Power X235 49P2177 49P2178
- Model #: 726727725018
- Item #: 9SIVRWKKXA2600
- Return Policy: Nytke team Return Policy
Refurbished: For 8-pin large power supply 290W desktop power supply P2W4R HYV3H KGF74 ...
- Model #: 752804572695
- Item #: 9SIVRWKKXA2137
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO M82 4550 E31 H3050 Q77 14Pin 180W Power Supply HK280-71FP ...
- Model #: 744623313535
- Item #: 9SIVB8UKD21747
- Return Policy: Magicpower Return Policy
Refurbished: 510S PA-1261-7 Small Case Power Supply 260W 6+4 Pin
- Model #: 722954727351
- Item #: 9SIVSYTKUT4636
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: DPS-300AB-101C industrial power supply 8632N 8832N
- Model #: 703454721995
- Item #: 9SIVB8UKAJ6673
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FSP750-30ANB 10P power supply, 750W
- Model #: 716837092353
- Item #: 9SIVB8UKX61392
- Return Policy: Magicpower Return Policy
Refurbished: 2930M 3810M 1050W Switching Power Supply JL087A DPS-1050EB A ...
- Model #: 753525944754
- Item #: 9SIVB8UKAA5400
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 150W Power Adapter LDP-150M214 LDP-150R054
- Model #: 759950248962
- Item #: 9SIVB8UKDF9561
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 450W Switching Power Supply FLX450-50HUA FSP350-70LQ
- Model #: 744623313764
- Item #: 9SIVB8UKD21762
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for P1S-2300V-R server power supply 300W
- Model #: 792597728213
- Item #: 9SIVB8UKX32940
- Return Policy: Magicpower Return Policy
Refurbished: 39Y7378 39Y7377 DPS-835AB A X3400 X3500 X3650 Server Power
- Model #: 722954734922
- Item #: 9SIVB8UKAA6097
- Return Policy: Magicpower Return Policy
Refurbished: 0C1297 PE2600 PowerEdge 2600 Server Power 7000679-0000 730W
- Model #: 722954734601
- Item #: 9SIVB8UKAA6082
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO AT P8P9 250W Switching Power Supply BPS-2504-4TU
- Model #: 744623304380
- Item #: 9SIVB8UKCW6224
- 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 DVR NVR 20Pin IDE*4 250W Switching Power Supply ...
- Model #: 744623313719
- Item #: 9SIVB8UKD21780
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for VF-D320-D512A-CFSAC/DC CONVERTER 5V 12V 320W
- Model #: 792597720514
- Item #: 9SIVRWKKXD7833
- Return Policy: Nytke team Return Policy
Refurbished: SRW-100-2002 For IPD Industrial Medical Equipment Power Supply ...
- Model #: 753525955316
- Item #: 9SIVB8UKAA0302
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For NFS110-7602PW1 Tested Well
- Model #: 753525989786
- Item #: 9SIVB8UKAA7796
- Return Policy: Magicpower Return Policy
Refurbished: S20 S30 workstation power 04105-FJY CommScope FS8003 625W 41A9759 ...
- Model #: 703454721193
- Item #: 9SIVB8UKAJ6585
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for RCB600 12V 24V 48V Medical Power Supply
- Model #: 792597727834
- Item #: 9SIVB8UKX32829
- Return Policy: Magicpower Return Policy
Refurbished: For 480 400 498 600 800 G1 G2 G3 Power Supply DPS-300AB-72 B
- Model #: 726727729238
- Item #: 9SIVRWKKXA3065
- Return Policy: Nytke team Return Policy
Refurbished: For 6505 ALM2M 23-0000092-02 switching power supply
- Model #: 752804573753
- Item #: 9SIVRWKKXB1715
- Return Policy: Nytke team Return Policy
Refurbished: For A128 Tape Library Power Supply 3-02742-03 M2357-YE PS2357-YE
- Model #: 722954724145
- Item #: 9SIVB8UKAA7077
- 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.
