Power Supplies - Showing 2281 - 2304 of 17940 Products
Refurbished: X445 X440 Server Power 74P4354 74P4353 DPS-1200DB A
- Model #: 722954734618
- Item #: 9SIVB8UKAA6087
- Return Policy: Magicpower Return Policy
Refurbished: R300 Server Power Supply D400P-00 DPS-400YB A JY924
- Model #: 722954736674
- Item #: 9SIVB8UKAA6265
- Return Policy: Magicpower Return Policy
Refurbished: RP2620 RP3440 Power Supply 0950-4119 0950-4621 A6874A DPS-650AB A
- Model #: 722954726095
- Item #: 9SIVB8UKAA7266
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for R620 R720 R520 1100W DC Power Supply E1100D-S0 5G4WK Y1MGX
- Model #: 726099252709
- Item #: 9SIVRWKKXD1783
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for YM-2461A 460W Hard Disk Cabinet Power Supply YM-2461AAR
- Model #: 716837090779
- Item #: 9SIVB8UKX60848
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for DPS-300AB 24 industrial computer power supply
- Model #: 716837092650
- Item #: 9SIVB8UKX61533
- Return Policy: Magicpower Return Policy
Refurbished: For U1A-F10300-DRB 300W Module Power Supply
- Model #: 726727731460
- Item #: 9SIVRWKKXA3358
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO PE1430 Precision 490 690 SC1430 24P+20P 750W Switching Power ...
- Model #: 744623317649
- Item #: 9SIVB8UKD64650
- Return Policy: Magicpower Return Policy
Refurbished: 450W Power Supply DPS-450UB A 856-851445-001-C
- Model #: 753525942866
- Item #: 9SIVB8UKAA5171
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for MN-P550-4123 550W 1U server power supply
- Model #: 716837091547
- Item #: 9SIVB8UKX61130
- Return Policy: Magicpower Return Policy
Refurbished: For EN3MCACB HSP960-D1205A S5300V3 5500V3 960W Power Supply
- Model #: 752804573111
- Item #: 9SIVRWKKXB1642
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for 078-000-052 350W UPS
- Model #: 716837083528
- Item #: 9SIVB8UKX57610
- Return Policy: Magicpower Return Policy
Refurbished: For R650 R670 power supply S26113-E526-V70 S1K02A001 1000w
- Model #: 752804573432
- Item #: 9SIVRWKKXB1729
- Return Policy: Nytke team Return Policy
Refurbished: R6515/R7515/R6525//R7525 Server Power 2400W M63JN
- Model #: 722954730665
- Item #: 9SIVB8UKAA5649
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 300WTFX Power Supply MPT-303AP Vostro 220S Series
- Model #: 716837092674
- Item #: 9SIVB8UKX61549
- Return Policy: Magicpower Return Policy
Refurbished: Switching Power Supply ESR-4830D D
- Model #: 722954723483
- Item #: 9SIVB8UKAA7011
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for G115D 6SL3520-3XE41-5AF0 Inverter
- Model #: 792597719044
- Item #: 9SIVRWKKXD7339
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for GL350HATKA-35009 Automotive Relay 12-32VDC
- Model #: 792597717477
- Item #: 9SIVRWKKXD6849
- Return Policy: Nytke team Return Policy
Refurbished: ML370G3/G2 Server Power PS-5551-2 216068-002 230993-001
- Model #: 722954734861
- Item #: 9SIVB8UKAA6076
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO R510 910 T710 750W Power Supply 7001531-J000 7001531-J100 ...
- Model #: 744623302102
- Item #: 9SIVB8UKCV8222
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 2000W Power Supply D2000E-S2 DPS-2000EB-2A XYK93 0960VR
- Model #: 792597705405
- Item #: 9SIVRWKKXD2760
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for PWS-665-PQ Server Power Supply 665W
- Model #: 792597715756
- Item #: 9SIVRWKKXD6376
- Return Policy: Nytke team Return Policy
Refurbished: For Server Power Supply R1IA2871A 875W
- Model #: 722954724695
- Item #: 9SIVB8UKAA7146
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U A4M K35 K39 K49 M41 T34 450W Switching Power Supply ...
- Model #: 744623302560
- Item #: 9SIVB8UKCV8262
- 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.
