Power Supplies - Showing 2281 - 2304 of 17940 Products
Refurbished: KHACHIMO 500W Switching Power Supply FSH091
- Model #: 744623310558
- Item #: 9SIVB8UKD12088
- Return Policy: Magicpower Return Policy
Refurbished: For 44V3086 44V7309 00FW755 74Y7338 5628 P6 570 Power Supply
- Model #: 726727821512
- Item #: 9SIVRWKKXB1585
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 380 gen10 500W Power Supply HSTNS-PL40-1 865408-b21 ...
- Model #: 744623307602
- Item #: 9SIVB8UKD06455
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 45D1442 9119-FHA POWER6 MDA-EZ
- Model #: 759950247682
- Item #: 9SIVB8UKDF9443
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO GW-6000 (80+) desktop power supply
- Model #: 745635673990
- Item #: 9SIVB8UKD64798
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for Video recorder 8632N 8664N 8616N power supply DPS-250AB-101B
- Model #: 716837096429
- Item #: 9SIVB8UKX62717
- Return Policy: Magicpower Return Policy
Refurbished: For ATX350-50HTX 1U Power Supply 350W With 8P Graphics Card Power Supply
- Model #: 703454720486
- Item #: 9SIVB8UKAJ6502
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for switching power supply POE-U400S53.5 53.5V7.5A
- Model #: 792597984176
- Item #: 9SIVB8UKX57091
- Return Policy: Magicpower Return Policy
Refurbished: For RCB600 12V 24V 48V power supply
- Model #: 792597702602
- Item #: 9SIVRWKKXD2058
- Return Policy: Nytke team Return Policy
Refurbished: For 5609 52B4 45D5062 45D5063 GX Dual-port 12X
- Model #: 726727775860
- Item #: 9SIVRWKKXA5058
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for ESR-48/56BC Communication Power Module DPR48/50-G-DGC ...
- Model #: 792597720361
- Item #: 9SIVRWKKXD7659
- Return Policy: Nytke team Return Policy
Refurbished: API5SG06 071-000-438 071-000-504 071-000-563 071-000-533 ...
- Model #: 753525986983
- Item #: 9SIVB8UKAA8678
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 500W Switching Power Supply DPS-500AB-22 T DPS-500AB-22T
- Model #: 744623317106
- Item #: 9SIVB8UKD64483
- Return Policy: Magicpower Return Policy
Refurbished: 2U 500W HK600-12UEPP2U Server Dual CPU 8-pin
- Model #: 722954732331
- Item #: 9SIVB8UKAA5824
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO S5 3330 220W Power Supply PCA222 PS-6221-7 PCA322 PCA227 ...
- Model #: 744623299341
- Item #: 9SIVB8UKCU6571
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For GW-CRPS3200TS5 54V output 3200W server power supply
- Model #: 792597703869
- Item #: 9SIVRWKKXD2306
- Return Policy: Nytke team Return Policy
Refurbished: ARN1-4400F 397W Industrial Control Equipment Power Supply
- Model #: 753525948615
- Item #: 9SIVB8UKAA0044
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 3668 3050 7050 Power Supply L240ES-00 AC240AM-01 B240AM-02 ...
- Model #: 792597982455
- Item #: 9SIVB8UKX56656
- Return Policy: Magicpower Return Policy
Refurbished: ASR1002 Series Switches 341-0383-04 A0 470W ASR1002-24VPWR-DC
- Model #: 753525957402
- Item #: 9SIVB8UKAA8955
- Return Policy: Magicpower 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: 1PCS for S2600BP LGA3647 pin server main board PBA J36547-350
- Model #: 792597983803
- Item #: 9SIVB8UKX56995
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for H3050 Small Chassis 14 Pins Power Supply PS-4241-02 HK340-72FP ...
- Model #: 716837089452
- Item #: 9SIVB8UKX60333
- Return Policy: Magicpower Return Policy
Refurbished: New Power Supply MAGIC POWER TECHNOLOGY 150W Power Supply MPI-815H
- Model #: 722954989766
- Item #: 9SIVB8UKAJ5656
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 800 600 480 280 G3 G4 4Pin 180W Power Supply PA-1181-6HA ...
- Model #: 744623299419
- Item #: 9SIVB8UKCU6598
- 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.
