Power Supplies - Showing 2257 - 2280 of 17993 Products
Refurbished: For 3020 9020 SFF 315W H315ES-00 4FCWX
- Model #: 752804578635
- Item #: 9SIVRWKKXB2384
- Return Policy: Nytke team Return Policy
Refurbished: RD650 550 450 Server 550W Power Supply PS-2551-6L-LF 00HV185 00HV32
- Model #: 703454719725
- Item #: 9SIVB8UKAJ6437
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for P38995-B21 P39385-001 800W FS PLAT HT PLG
- Model #: 716837088233
- Item #: 9SIVB8UKX59811
- Return Policy: Magicpower Return Policy
Refurbished: For AVAYA 655A Power Supply G650 700470396 DPSN-500AB BF REV: 00
- Model #: 703454717462
- Item #: 9SIVB8UKAJ6162
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for APR48-3G communication power module 54V 37.5A
- Model #: 792597717729
- Item #: 9SIVRWKKXD7035
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 80plus Gold IPC 1U 500W Switching Power Supply SS-500L1U
- Model #: 744623312606
- Item #: 9SIVB8UKD19589
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO S5 220W Power Supply FH-ZD271MGR PS-6221-9 PS-6271-7 ...
- Model #: 744623301150
- Item #: 9SIVB8UKCV8135
- Return Policy: Magicpower Return Policy
Refurbished: EFRP-S753 Dawn A620R-G Server 750W Power Module
- Model #: 722954726118
- Item #: 9SIVB8UKAA7273
- Return Policy: Magicpower Return Policy
Refurbished: PSU For FSP 1300W Power Supply FSP1300-20FM
- Model #: 753525934762
- Item #: 9SIVB8UKA99256
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for Z2 G4 Power Supply 650W, DPS-650AB-30 L36049-003, L57253-003
- Model #: 716837084754
- Item #: 9SIVB8UKX58092
- Return Policy: Magicpower Return Policy
Refurbished: New Power Supply For DZY-48/15HIII 48V 15A
- Model #: 753525991970
- Item #: 9SIVB8UKAA8220
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Communication Power Supply For GYE BC1203
- Model #: 759950248313
- Item #: 9SIVB8UKDF9500
- Return Policy: Magicpower Return Policy
Refurbished: 580 760 780 960 980 255W Power Supply L255P-01 F255E-01 D255P-00 ...
- Model #: 753525935783
- Item #: 9SIVB8UKA99361
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO RH2285 V2 V3 800W Switching Power Supply TPS800-12D
- Model #: 744623312392
- Item #: 9SIVB8UKD19552
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for YM-5501A REV: A B Storage, Power Supply 500W Module CP-1234R2 ...
- Model #: 792597711321
- Item #: 9SIVRWKKXD4554
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for B013450001 PSM-SRA10E-Z-R (ROHS) power supply
- Model #: 792597710348
- Item #: 9SIVRWKKXD4259
- Return Policy: Nytke team Return Policy
Refurbished: GPR4850D 53.5V 2900W Communication Power Rectifier Module
- Model #: 753525948660
- Item #: 9SIVT8HKWF3049
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1Pcs for DPS-220TB PUD220M power supply
- Model #: 716837082910
- Item #: 9SIVB8UKX57475
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For N2Power 160W Power Supply XL160-3
- Model #: 759950243134
- Item #: 9SIVB8UKDA8961
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For ETON ET856A
- Model #: 759950241871
- Item #: 9SIVB8UKDA8749
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO AT P8P9 200W Switching Power Supply ACE-925A-RS ACE-925A
- Model #: 744623298771
- Item #: 9SIVB8UKCU6487
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 450W COUGAR CM POWER 550W For HEC-450TE HEC-450TE-2WX ...
- Model #: 759950243097
- Item #: 9SIVB8UKDA8945
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 98Y2304 98Y3065 98Y3064 98Y4517 98Y4516 98Y4518 P
- Model #: 792597713431
- Item #: 9SIVRWKKXD4904
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for IFRP-532NFE IFRP-532NF Power Supply 9273ECPSU
- Model #: 726099252150
- Item #: 9SIVRWKKXD1627
- Return Policy: Nytke team 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.
