Power Supplies - Showing 2017 - 2040 of 17931 Products
Refurbished: 1PCS for EFRP-553V3 power supply EFRP-2553B02 cage, another EFRP-553 ...
- Model #: 726099252228
- Item #: 9SIVRWKKXD1649
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for YKD-6300A FSP180-601U IP-P300F1-0 GW-EPS1610DA YKD-6450F ...
- Model #: 716837087472
- Item #: 9SIVB8UKX59592
- Return Policy: Magicpower Return Policy
Refurbished: PSU For POWERLD 24V2A 45W Power Supply GZM-H45S24
- Model #: 753525945027
- Item #: 9SIVB8UKA99605
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 078-000-086 2200W UPS
- Model #: 716837083597
- Item #: 9SIVB8UKX57592
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 200 220 560 580 530 240W Power Supply HK340-71FP PS-5241-04 ...
- Model #: 744623301921
- Item #: 9SIVB8UKCV8196
- Return Policy: Magicpower Return Policy
Refurbished: For t430 R530 Server 450W Power Supply 0H3DKF AC450E-S0
- Model #: 726727817546
- Item #: 9SIVRWKKXB0827
- Return Policy: Nytke team Return Policy
Refurbished: MSX6025 SX6036 300W Power Supply YM-11-1825 675170-001
- Model #: 753525944402
- Item #: 9SIVB8UKAA5371
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for AMS2500 AMS2000 2100 2300 Storage 3276079-A PPH1005
- Model #: 792597985067
- Item #: 9SIVB8UKX57204
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 1100W power supply YM-2112A YM-2112AAR
- Model #: 716837084969
- Item #: 9SIVB8UKX58403
- Return Policy: Magicpower Return Policy
Refurbished: For PSR650B-12A1/H LSIVM1AC650 YM-2651BHR 650W switching power ...
- Model #: 726727817041
- Item #: 9SIVRWKKXB0665
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 1U 560W Replace 450W Switching Power Supply RSD-3600UP
- Model #: 744623312989
- Item #: 9SIVB8UKD19614
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for MR482000MH-ZJ Communication Power Supply ZHR481800G | M ...
- Model #: 792597720835
- Item #: 9SIVRWKKXD7983
- Return Policy: Nytke team Return Policy
Refurbished: For 500W original power supply PS-8501-2 VB 80 8 + 8 graphics card
- Model #: 752804580089
- Item #: 9SIVRWKKXB2534
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for server power supply P2F-5400V P2H-5400V 400W
- Model #: 716837090748
- Item #: 9SIVB8UKX60836
- Return Policy: Magicpower Return Policy
Refurbished: For BTX-600SE 500W Dual Graphics Card 6+2P
- Model #: 703454719275
- Item #: 9SIVB8UKAJ6356
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For HiTek HF10-S-M-_FFFL Power Supply
- Model #: 753525933345
- Item #: 9SIVSY0KUU6040
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: MP4-1E-1L-1N-1N-4LF-00 600W
- Model #: 753525986914
- Item #: 9SIVB8UKAA8699
- Return Policy: Magicpower Return Policy
Refurbished: 60W Switching Power Supply U1A-H10060-DRB
- Model #: 753525942873
- Item #: 9SIVB8UKAA5175
- Return Policy: Magicpower Return Policy
Refurbished: For TD340 625W DPS-625AB B 03x4319 0B94155 power supply
- Model #: 752804574156
- Item #: 9SIVRWKKXB1803
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 400W 250W 300W 500W600W itx small chassis graphics card 8p power ...
- Model #: 716837088707
- Item #: 9SIVB8UKX60082
- Return Policy: Magicpower Return Policy
Refurbished: HK350-12PP Suitable for Jiayue 5060 Qi Tian M4650 TS150 250 10-pin Power ...
- Model #: 722954988301
- Item #: 9SIVB8UKAA6557
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for DS460S-3 DS460SDC-3 PWR-460DC-R PWR-500DC-F AC/DC Power ...
- Model #: 716837088059
- Item #: 9SIVB8UKX59834
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PowerEdge T410 580W For 662HR 0662HR
- Model #: 759950241307
- Item #: 9SIVB8UKDA0478
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO BTX 2010 2020 2030 6800 6000 4800 8000 250W Power Supply ...
- Model #: 744623301938
- Item #: 9SIVB8UKCV8200
- 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.
