Power Supplies - Showing 1921 - 1944 of 17946 Products
Refurbished: For GX110 GX200 Power Supply PS-5201-8D2 824KH 0009228C 200W
- Model #: 726727723915
- Item #: 9SIVRWKKXA2494
- Return Policy: Nytke team Return Policy
Refurbished: For DPS-250AB-24 B FLEX Cash Register POS Machine NAS Small 1U Desktop ...
- Model #: 722954727344
- Item #: 9SIVB8UKAA7419
- Return Policy: Magicpower Return Policy
Refurbished: DPR48/15-D-DGC ESR-48/15A 53.5V 15A Communication Power Module
- Model #: 753525949872
- Item #: 9SIVT8HKWF2816
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: KHACHIMO 300W Power Supply DPSN-300DB-1 E 06HYWF S4810P-PWR-DC-R ...
- Model #: 759950248832
- Item #: 9SIVB8UKDF9556
- Return Policy: Magicpower Return Policy
Refurbished: PSB250Q-J3 For CWT 250W Switching Power Supply
- Model #: 753525954265
- Item #: 9SIVB8UKAA0219
- Return Policy: Magicpower Return Policy
Refurbished: NEPS600-D 02270017 Power Supply Quidway netEngine40-2 NE40
- Model #: 703454718285
- Item #: 9SIVSY0KUT7087
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: MHG2-6300P 300W Color Doppler Power Supply
- Type: ATX
- Model #: 703454921715
- Item #: 9SIVSY0KUU5237
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For P920 Power Supply 1400W DPS-1400EB A 5P51D76997 5P50V031
- Model #: 752804580157
- Item #: 9SIVRWKKXB2540
- Return Policy: Nytke team Return Policy
Refurbished: For 10P300 310 P320 330 power supply HK280-72PP PCJ007 FSP500-20TGBAB
- Model #: 726727729573
- Item #: 9SIVRWKKXA2973
- Return Policy: Nytke team Return Policy
Refurbished: For DL980 G7 Power Backplane AM426-60001 AM426-69001 490594-001
- Model #: 726727815511
- Item #: 9SIVRWKKXB0430
- Return Policy: Nytke team Return Policy
Refurbished: N9K-C9372PX-E Series Switches 650W N9K-PAC-650W
- Model #: 753525985221
- Item #: 9SIVB8UKAA9185
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO RD650 RD450 350 TS560 450W Switching Power Supply ...
- Model #: 744623303611
- Item #: 9SIVB8UKCW6107
- Return Policy: Magicpower Return Policy
Refurbished: For Power Supply CA05951-8730
- Model #: 726727816648
- Item #: 9SIVRWKKXB0816
- Return Policy: Nytke team Return Policy
Refurbished: S13-800P1AB 1U Server Power Supply 800W Dual 8-pin
- Model #: 722954726873
- Item #: 9SIVB8UKAA7379
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 121W Switching Power Supply ACE-121A
- Model #: 744623303116
- Item #: 9SIVB8UKCW6048
- Return Policy: Magicpower Return Policy
Refurbished: ARN1-4400F 397W Industrial Control Equipment Power Supply
- Model #: 753525948615
- Item #: 9SIVB8UKAA0044
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for ATX3500-65PA industrial power supply ATX3000-68PD ...
- Model #: 716837097136
- Item #: 9SIVB8UKX62908
- Return Policy: Magicpower Return Policy
Refurbished: For NetApp FAS270 Power Supply, GF270 FAS250 PN: X511A-R5 114-00012
- Model #: 752804573180
- Item #: 9SIVRWKKXB1649
- Return Policy: Nytke team Return Policy
Refurbished: 5V 24V Power Supply For LEB225F-0524
- Model #: 753525989168
- Item #: 9SIVB8UKAA7747
- Return Policy: Magicpower Return Policy
Refurbished: For Boko 5100 6500 Machine Power Supply ALM2B 7001485-J000
- Model #: 722954722608
- Item #: 9SIVB8UKAA6912
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 18-75V 5V15A Power Supply E36SR05015NRFA
- Model #: 759950246586
- Item #: 9SIVB8UKDA9415
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for CA05950-1475 A18HR-4/5FAUPT-FJ2
- Model #: 792597985197
- Item #: 9SIVB8UKX57256
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO RD330 430 530 630 640 DC 800W Power Supply DPS-800AB-5 B ...
- Model #: 744623317533
- Item #: 9SIVB8UKD64656
- Return Policy: Magicpower Return Policy
Refurbished: R48-3000e3 3000W High Efficiency Communication Power Module
- Model #: 753525986976
- Item #: 9SIVT8HKWF3042
- Return Policy: YunYunKeJiShiZhuangDian 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.
