Power Supplies - Showing 1969 - 1992 of 17940 Products
Refurbished: KHACHIMO R8R7 850W Power Supply D850EF-00 D850EF-01 NJVDN ...
- Model #: 744623307244
- Item #: 9SIVB8UKD06365
- Return Policy: Magicpower Return Policy
Refurbished: DS1200-3 DS1200-3-002 1200W Server Power Supply
- Model #: 703454720677
- Item #: 9SIVB8UKAJ6529
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for S1M-5350P 350W Disk Hard Disk Cabinet Power Supply S1M-5350P
- Model #: 792597711000
- Item #: 9SIVRWKKXD4371
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for network power supply DS850-3 power module 3.3V
- Model #: 792597727049
- Item #: 9SIVB8UKX32605
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO R510 G6 1U 600W Switching Power Supply EFAP-601 36001025
- Model #: 744623302133
- Item #: 9SIVB8UKCV8234
- Return Policy: Magicpower Return Policy
Refurbished: For ASTEC Power Supply For LPS254-CF
- Model #: 753525991444
- Item #: 9SIVB8UKAA8108
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for SPAFFIV-04G PWR-0199-04/03 For F5 Big-IP 10000 Power Supply
- Model #: 792597726394
- Item #: 9SIVRWKKXD9618
- Return Policy: Nytke team Return Policy
Refurbished: SFX-0540H2 industrial computer small power supply 400W
- Model #: 703454722978
- Item #: 9SIVB8UKAJ6768
- Return Policy: Magicpower Return Policy
Refurbished: 2100W Power Supply PWR-2KW-DC-V2 DHF-2DC-2100W-V 341-0400-02 ...
- Model #: 753525941845
- Item #: 9SIVB8UKAA5015
- Return Policy: Magicpower Return Policy
Refurbished: For P5 570 7888 power supply 39J2779 97P5676
- Model #: 726727730593
- Item #: 9SIVRWKKXA3258
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for FSP460-60PFG Power Supply FSP400-60GLC
- Model #: 716837096672
- Item #: 9SIVB8UKX62822
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for P720 server power supply 12V130A 1725W 00E7187 7001490-J000
- Model #: 792597706136
- Item #: 9SIVRWKKXD2933
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for M1Y-2302G 300W machine power supply M1Y2-5300G2H
- Model #: 731029999562
- Item #: 9SIVRWKKXD1323
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for PH400 rainproof power supply PZ400-12 12V30A PZ400-24 power ...
- Model #: 792597984060
- Item #: 9SIVB8UKX57002
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for TMPC-700 ACE-815T-RS YM-5411B Power Supply
- Model #: 716837087663
- Item #: 9SIVB8UKX59618
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for XPS8930 850W 1000W Power Supply Aurora R5 R6 R7 R8 R9
- Model #: 792597726998
- Item #: 9SIVB8UKX32585
- Return Policy: Magicpower Return Policy
Refurbished: Power Abelcom PWS-801-1R 800W x2 Redundant Power Supply (1+1)
- Model #: 722954988240
- Item #: 9SIVB8UKAA6532
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for V7000 G2 Storage Power Supply 31P1848 TDPS-1200BB A 00RY003 ...
- Model #: 792597984480
- Item #: 9SIVB8UKX57074
- Return Policy: Magicpower Return Policy
Refurbished: PowerEdge 6850 1470W Power Supply SP574 SP574-Y01A PS-2142-1D DU764 ...
- Model #: 753525941333
- Item #: 9SIVB8UKAA4964
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO X3100 M4 M5 350W Power Supply DPS-350AB-16 B ...
- Model #: 744623303895
- Item #: 9SIVB8UKCW6169
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Z200 320W Switching Power Supply DPS-320KB-1 A DPS-320KB-1A ...
- Model #: 744623314938
- Item #: 9SIVB8UKD21914
- Return Policy: Magicpower Return Policy
Refurbished: For NEPS2000-A5 Power Supply NEPS2000-A For LSBM3Power S8512 S850
- Model #: 722954733536
- Item #: 9SIVB8UKAA5950
- Return Policy: Magicpower Return Policy
Refurbished: 700W Switching Power Supply PWS-702A-1R
- Model #: 722954737893
- Item #: 9SIVSYTKUT6301
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: Server Power Supply for DL380 G4 406393-501 321632-501 367238-001 ...
- Model #: 753525984965
- Item #: 9SIVB8UKAA9178
- 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.
