Power Supplies - Showing 745 - 768 of 11996 Products
LED Driver 60W 12V 5A HLG-80H-12A Meanwell AC-DC SMPS HLG-80H Series MEAN WELL ...
- Model #: LB07CQNJVBJ
- Item #: 9SIVARYH6Y7335
- Return Policy: Nature Return Policy
LED Driver 60W 5V 12A LPV-100-5 Meanwell AC-DC SMPS LPV-100 Series MEAN WELL C.V Power ...
- Model #: LB07C5CPS1K
- Item #: 9SIVARYH702541
- Return Policy: Nature Return Policy
Logisys New PC Power Supply Upgrade for Compaq Presario SR5703WM (NC783AA) ...
- Model #: SAB007M5TWRS
- Item #: 9SIVARYK4W9372
- Return Policy: Nature Return Policy
Zeus GAMDIAS RGB Gaming PC Power Supply 650W 80 Plus Gold Certified 650 Watt PSU for ...
- Model #: LB07WCT24GH
- Item #: 9SIVARYH6X5090
- Return Policy: Nature Return Policy
Mpw2801 Pcps0939 Power Supply Board
- Model #: mpw2801
- Item #: 9SIV1W8AWG0609
- Return Policy: The Best Part Inc. Return Policy
Compaq - EVO D500/D510 POWER SUPPLY - 243894-001
- Model #: LB00457A61C
- Item #: 9SIVARYH703633
- Return Policy: Nature Return Policy
CableMod C-Series Pro ModFlex Sleeved Cable Kit for Corsair RM Yellow Label/AXi/HXi (Black ...
- Model #: LB089KQN25C
- Item #: 9SIVARYH6Z1038
- Return Policy: Nature Return Policy
[PowerNex] Mean Well RSP-150-13.5 13.5V 11.2A 151.2W Single Output with PFC Function ...
- Model #: LB017U3IMSQ
- Item #: 9SIVARYH6Y5038
- Return Policy: Nature Return Policy
BUCIER 20 Pack LM2596 DC-DC Buck Converter Step Down Variable Volt Regulator Input ...
- Model #: B882
- Item #: 9SIV81TKMN1171
- Return Policy: Electronics store Return Policy
Mean Well Original TP-150B Triple Output with PFC Function Power Supply +/-12V 5V 0.6A 5.5A ...
- Model #: LB07MDPWKQW
- Item #: 9SIVARYH702820
- Return Policy: Nature Return Policy
Power Supply Module 120 Volt A.C. input 12V Output - Third Party
- Model #: 0957-2228
- Item #: 9SIV1W87N60225
- Return Policy: The Best Part Inc. Return Policy
MW Mean Well LPF-60-42 42V 1.43A 60W Single Output LED Switching Power Supply
- Model #: LB072JDFDZR
- Item #: 9SIVARYH6Y3075
- Return Policy: Nature Return Policy
Airgoo Addressable RGB PSU Cable, 24 Pin ATX Cable Extension Kit, with Diffused Lighting, ...
- Model #: LB09QK1KYYG
- Item #: 9SIVARYH6Y2533
- Return Policy: Nature Return Policy
SEASONIC SSP-300SFB 300W 80 PLUS Bronze SFX 12 V v.2.31 Power Supply w/ Active PFC F3 / ...
- Model #: LB06XW7F39M
- Item #: 9SIVARYH6Y5052
- Return Policy: Nature Return Policy
Dell Optiplex 780 USFF Computer Power Supply K350R PS-3181-9DA 180W
- Model #: K350R
- Item #: 9SIV1736N22160
- Return Policy: Digitzy Return Policy
Disassemble PSU for 10-pin TFX Power Supply FSP180-20TGBAA FSP180-20TGBAB MAX ...
- Model #: SAB0C5F9B35T
- Item #: 9SIVARYK4Z0645
- Return Policy: Nature Return Policy
BOSCH SECURITY VIDEO UPA-1220-60 AC Adapter (1A, 60Hz) for CCTV Systems
- Model #: LB003XZXI6C
- Item #: 9SIVARYH6Z7342
- Return Policy: Nature Return Policy
Compaq 386594-001 6.4Gb Ide Fuj
- Model #: 386594-001
- Item #: 9SIV1W87N60693
- Return Policy: The Best Part Inc. Return Policy
220W Watt L220AS-00 Desktop Power Supply Unit PSU Compatible with Dell Inspiron 3647 ...
- Model #: SAB0784D3ZNN
- Item #: 9SIVARYK4X0696
- Return Policy: Nature Return Policy
Dc Power Supply, Plastic, 10 to 12Vdc, 30W
- Model #: SAB003A6FM8G
- Item #: 9SIVARYK4W8369
- Return Policy: Nature Return Policy
Morex 60W Power Supply Kit: 20-pin ATX DC-DC Board with 60W AC-DC Adapter
- Model #: LB00ZE4TXDC
- Item #: 9SIVARYH6Y6303
- Return Policy: Nature Return Policy
PWS-2K03P-1R Power Supply 2000W Module W/ PFC
- Model #: TGM2-PWS-2K03P-1R
- Item #: 9SIVB99KMX0978
- Return Policy: Compiston Store Return Policy
CableMod C-Series Pro ModFlex Sleeved Cable Kit for Corsair RM Yellow Label/AXi/HXi (Black ...
- Model #: LB089KQ2N43
- Item #: 9SIVARYH6Z1031
- Return Policy: Nature Return Policy
Switching Power Supply LED PSU 250w - 500w AC110/220v 50 60 Hz DC 12v 24v 36v 48v 60v for ...
- Model #: SAB0CDR37PXP
- Item #: 9SIVARYK4X2972
- Return Policy: Nature 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.
