Power Supplies - Showing 1993 - 2016 of 18294 Products
Refurbished: PWR SUPPLY, 175W, HP-U176WF3 REV.A, 274427-001
- Model #: HP-U176WF3
- Item #: 9SIV1ZS7W54099
- Return Policy: DreamHardware Return Policy
Refurbished: PWR SUPPLY 550W, SUN 300-1757-02, ASTEC DS550-3 REV 05
- Model #: 300-1757-02-1
- Item #: 9SIV1ZS7W58355
- Return Policy: DreamHardware Return Policy
Refurbished: Emacs Mrn1-6230F Emacs 230 Watt Power Supply
- Model #: MRN1-6230F
- Item #: 9SIV2GE9XZ4871
- Return Policy: TechSavers Return Policy
Refurbished: PWR SUPPLY, 450W, DELL DPS-450DB C REV.01, CN-05P115 REV.A01
- Model #: DPS-450DB-1
- Item #: 9SIV1ZS7W54153
- Return Policy: DreamHardware Return Policy
Refurbished: Eaton ePDU (Metered Input)- Vertical (0U) - Metered - IEC 560P9 - IEC 60320 ...
- Model #: EMI370-04
- Item #: 9SIV02W8BF6046
- Return Policy: Tech For Less Return Policy
Refurbished: PWR SUPPLY, 360W, CN-02P222-48010-33H-0B2B REV L03
- Model #: 02P222
- Item #: 9SIV1ZS7W62345
- Return Policy: DreamHardware Return Policy
Refurbished: DPS-60 POWER CONVERTER W/FAN (TA300DC) SUN 125W, 3001407-06
- Model #: DPS-60
- Item #: 9SIV1ZS7W53783
- Return Policy: DreamHardware Return Policy
Refurbished: PA3467U-1ACA - AC/DC ADAPTER SADP-65KB A
- Model #: SADP-65KB
- Item #: 9SIV1ZS7W56821
- Return Policy: DreamHardware Return Policy
Refurbished: PWR SUPPLY, 450W, DELL DPS-450DB C REV.02
- Model #: DPS-450DBC-2
- Item #: 9SIV1ZS7W54569
- Return Policy: DreamHardware Return Policy
Refurbished: SUN FDK 300-1260-03 PEX690-31 REV.AB 300W PWR SUPPLY
- Model #: 300-1260-03
- Item #: 9SIV1ZS7W64676
- Return Policy: DreamHardware Return Policy
Refurbished: PS, 256W, AA20540 REV.04; Manufact.P/N 0950-2873
- Model #: 0950-2873-1
- Item #: 9SIV1ZS7W59290
- Return Policy: DreamHardware Return Policy
Refurbished: Factory Sealed Renew HPE Aruba X382 54VDC 2750W AC Power Supply (JL372A)
- Model #: JL372AR
- Item #: 9SIV2GPJSS6980
- Return Policy: ITS Distribution Return Policy
Refurbished: PWR SUPPLY DPS-85NB A REV.00, FIC P/N: 71-50344-00
- Model #: DPS-85NBA-1
- Item #: 9SIV1ZS7W55442
- Return Policy: DreamHardware Return Policy
Refurbished: PWR SUPPLY, 100W, REV.00, IBM P/N 24P6881, FRU NO:24P6883
- Model #: DPS-185DBA
- Item #: 9SIV1ZS7W54045
- Return Policy: DreamHardware Return Policy
Refurbished: EC EN-8254942 HPC-250-101 REV.C 250W PWR SUPPLY
- Model #: EN-8254942-2
- Item #: 9SIV1ZS7W61535
- Return Policy: DreamHardware Return Policy
Refurbished: PS, 144.6W/100W, DPS-145PB-80 A REV.00, 56.04145.1P1
- Model #: DPS-145PB-80A
- Item #: 9SIV1ZS7W60906
- Return Policy: DreamHardware Return Policy
Refurbished: CPQ 375W PS, REV B03, DS20 PFC 1 SQU,ACBEL API-8767-01,DATE B0033
- Model #: API-8767-01-2
- Item #: 9SIV1ZS7W54962
- Return Policy: DreamHardware Return Policy
Refurbished: SUN FDK 300-1301-03 PEX705-30 REV.AC 195W/ 148W PWR SUPPLY
- Model #: PEX705-30
- Item #: 9SIV1ZS7W61786
- Return Policy: DreamHardware Return Policy
Refurbished: RPS-350 B REV.S4, MATE W/ PS DPS-350AB A, P/N:TA737180-004, CAGE ONLY
- Model #: RPS-350A
- Item #: 9SIV1ZS7W61718
- Return Policy: DreamHardware Return Policy
Refurbished: PWR SUPPLY, 220W, PDP-121P, 277910-001, CPS-199RP2 REV.A
- Model #: CPS-199RP2
- Item #: 9SIV1ZS7W53161
- Return Policy: DreamHardware Return Policy
Refurbished: PWR SUPPLY 250W TFX0250D5W REV.X4, DELL 0YX301 REV.A00
- Model #: TFX0250D5W
- Item #: 9SIV1ZS7W56542
- Return Policy: DreamHardware Return Policy
Refurbished: Compaq PS 325W Power Supply, 480082-001, 402151-001, REV:03
- Model #: PS-7331-1C-2
- Item #: 9SIV1ZS7W55333
- Return Policy: DreamHardware Return Policy
Refurbished: PS, 90W, PS-5111-6C1, P/N 216922-002, SPARE No: 218980-001
- Model #: 218980-001
- Item #: 9SIV1ZS7W59164
- Return Policy: DreamHardware Return Policy
Refurbished: PWR SUPPLY, 200W, PS 2013,PS-5201-4T1,334112-001,334169-001
- Model #: PS-5201-4T1
- Item #: 9SIV1ZS7W57137
- Return Policy: DreamHardware 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.
