Power Supplies - Showing 1249 - 1272 of 18753 Products
Segotep GM850 Power Supply 850W, PCIe 5.0 & ATX 3.0 Full Modular 80 Plus Gold Certified ...
- Model #: SAB08F1NFSG4
- Item #: 9SIVARYK4W7067
- Return Policy: Nature Return Policy
MW Mean Well PM-20-3.3 3.3V 4.5A 14W Green Open Frame Single Output Switching Power ...
- Model #: LB0739HFKC2
- Item #: 9SIVARYH702106
- Return Policy: Nature Return Policy
CableMod RT-Series Pro ModFlex Sleeved 8-pin PCI-e Cable for ASUS and Seasonic (Black + ...
- Model #: LB08GJQRS85
- Item #: 9SIVARYH6Z1057
- Return Policy: Nature Return Policy
SilverStone Technology 1000 Watt Fully Modular 80 Plus Platinum Power Supply Ultra ...
- Model #: LB091SW6G5B
- Item #: 9SIVARYH6Y0363
- Return Policy: Nature Return Policy
Altronix ALTV2416ULX Power Supply 16 Fuse 24Vac @ 7A
- Model #: LB0006ZKVU8
- Item #: 9SIVARYH6Y9833
- Return Policy: Nature Return Policy
240W ThinkStation E31 PSU
- Model #: 54y8901
- Item #: 9SIV1W8AWG2739
- Return Policy: The Best Part Inc. Return Policy
Inwin Development IPS350CQ20H HASWELL Ready 350w ATX PSU Cases IP-S350CQ2-0 H
- Model #: LB00MHYLPOM
- Item #: 9SIVARYH6Z8308
- Return Policy: Nature Return Policy
PELCO WCS1-4 Camera Power Supply 4Amp 1 Output
- Model #: LB0041X33VU
- Item #: 9SIVARYH6Z5759
- Return Policy: Nature Return Policy
CableMod C-Series Pro ModFlex Sleeved 8-pin PCI-e Cable for Corsair RM Yellow ...
- Model #: LB08GJPY44D
- Item #: 9SIVARYH6Z1815
- Return Policy: Nature Return Policy
HP 405060-001 Genuine Power Supply - 250 Watt 24 Pin Atx, Non-Pfc For
- Model #: 405060-001
- Item #: 9SIV1W87N60598
- Return Policy: The Best Part Inc. Return Policy
Qlogic 100W Open Frame Power Supply Unit
- Model #: MPB125-S300
- Item #: 9SIV1W87N60697
- Return Policy: The Best Part Inc. Return Policy
N300V5-C G-Energy Best Price 5V 60A 300W Power Supply N300V5.0-C
- Model #: SAB0B7L3K94H
- Item #: 9SIVARYK4X0443
- Return Policy: Nature Return Policy
Altronix AL168CB Power Supply,Outputs 8,Amps 6
- Model #: LB003Y00MDS
- Item #: 9SIVARYH6Y8888
- Return Policy: Nature Return Policy
HP 540W AC Power Supply
- Model #: 188407-001
- Item #: 9SIV1W8G9Z3639
- Return Policy: The Best Part Inc. Return Policy
TP-Link TL-FC111A-20 | 10/100 Mbps WDM SFP to RJ45 Fiber Media Converter | Fiber to ...
- Model #: LB09Q7XMK1H
- Item #: 9SIVARYH6Y1118
- Return Policy: Nature Return Policy
Dell Wu133 Dell 305 Watt Power Supply For Optiplex 760 960 Mt
- Model #: WU133
- Item #: 9SIV1W87N60126
- Return Policy: The Best Part Inc. Return Policy
HP 412211-001 700W Hot-Plug Power Supply Proliant DL360 G5 DL365 G1 Servers
- Model #: LB00DUGGRE4
- Item #: 9SIVARYH6Z8174
- Return Policy: Nature Return Policy
HP 796349-001 ProDesk 600 G2 200W 4-Pin 12v Power Supply
- Fans: 1 Fan
- Weight: 4
- Model #: 796349-001
- Item #: 9SIV1W8AWG2338
- Return Policy: The Best Part Inc. Return Policy
Altronix Proprietary Power Supply AL125ULX
- Model #: SAB003XZV7B0
- Item #: 9SIVARYK4W8801
- Return Policy: Nature Return Policy
HPE 511778-001 Proprietary Power Supply
- Model #: 511778-001
- Item #: 9SIV1736N22125
- Return Policy: Digitzy Return Policy
PCB Type Security 100.05W 13.8V CH1,4.75A;CH2,2.5A PSC-100A Meanwell AC-DC ...
- Model #: LB0180Y8L94
- Item #: 9SIVARYH6Z3980
- Return Policy: Nature Return Policy
Xp Power Ves300Ps48 Power Supply, Ac-Dc, Desktop, 300W, 48V@6.25A, 90-264V In, ...
- Model #: LB09JBJJ9P3
- Item #: 9SIVARYH702828
- Return Policy: Nature Return Policy
IBM 24R2567 Power Supply - 225 Watt For Thinkcentre Series PC's
- Model #: 24R2567
- Item #: 9SIV1W87N60966
- Return Policy: The Best Part Inc. Return Policy
L-Com Poe Injector with Integral Power Supply - PS4820-POE-1
- Model #: LB00GONJKX0
- Item #: 9SIVARYH6Y9277
- 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.
