Power Supplies - Showing 1177 - 1200 of 11999 Products
Dell P9550 Dell 280 Watt Power Supply For Optiplex 330 740 745 755 Dimension C521-P9550
- Weight: 4
- Model #: P9550
- Item #: 9SIV1736N22468
- Return Policy: Digitzy Return Policy
MAINGEAR Ignition Fully Modular Gaming Power Supply, 80-Plus Platinum Rated PSU (1200 ...
- Model #: LB089T8J5CZ
- Item #: 9SIVARYH6X9411
- Return Policy: Nature Return Policy
SparkFun Breadboard Power Supply Stick - 5V/3.3V
- Model #: LB07WPFXN58
- Item #: 9SIVARYH6Y7351
- Return Policy: Nature Return Policy
MW Mean Well HLG-80H-12 12V 5A 60W Single Output LED Switching Power Supply
- Model #: LB01814JCE6
- Item #: 9SIVARYH6Z4104
- Return Policy: Nature Return Policy
Power Supply high P Bipolar no Flicker Isolation Certified Constant Current ...
- Model #: SAB0C7TXZS8G
- Item #: 9SIVARYK4X2975
- Return Policy: Nature Return Policy
Gateway 6500457 Gateway 200 Watt Atx Power Supply
- Model #: 6500457
- Item #: 9SIV1W8G9Y3111
- Return Policy: The Best Part Inc. Return Policy
DellOptiplex GX1, GXa, GX110 200 Watt Power Supply - Genuine NPS-200
- Model #: NPS-200PB-73M
- Item #: 9SIV1W87N60385
- Return Policy: The Best Part Inc. Return Policy
MW Mean Well EPP-300-12 12V 25A 300W Single Output with PFC Function Power Supply
- Model #: LB00FRBZPFM
- Item #: 9SIVARYH6Y9840
- Return Policy: Nature Return Policy
HP 437797-001 240 Watt Power Supply For Dc7800Sff
- Model #: 437797-001
- Item #: 9SIV1W87N60224
- Return Policy: The Best Part Inc. Return Policy
Samlex SEC-1212 Desktop Switching Power Supply Input: 120 VAC, Output: 13.8 VDC, 10 ...
- Model #: LB0002D6KOK
- Item #: 9SIVARYH6X7405
- Return Policy: Nature Return Policy
Industrial Open Frame 300W 24V 12.5A EPP-300-24 Meanwell AC-DC EPP-300 MEAN WELL ...
- Model #: LB07C54B256
- Item #: 9SIVARYH6Z8386
- Return Policy: Nature Return Policy
TDK LAMBDA DSP10-5 AC-DC Conv, DIN Rail, 1 O/P, 7.5W, 1.5A, 5V
- Model #: LB005S3UIW4
- Item #: 9SIVARYH6Z9252
- Return Policy: Nature Return Policy
39Y7189-06 Ibm 670Watt Redundant Power Supply For Xseries X3550 P/N:
- Model #: LB00HJL9J2I
- Item #: 9SIVARYH703806
- Return Policy: Nature Return Policy
PSU for ProDesk 600G3 800G3 SFF Power Supply 901765-001 PA-1181-3HV DPS-180AB-26 A ...
- Model #: SAB0C5FMK22M
- Item #: 9SIVARYK4Z1096
- Return Policy: Nature Return Policy
Lenovo Api2Pc23 Lenovo 200 Watt Atx Power Supply For Thinkcentre A50 S50
- Model #: API2PC23
- Item #: 9SIV1W8AWG2736
- Return Policy: The Best Part Inc. Return Policy
Uneec 650W 80+ Plus Gold Certified Gaming Power Supply PSU Silent Fan 33dbm Maximum ...
- Model #: LB08KG2K6DJ
- Item #: 9SIVARYH6X7421
- Return Policy: Nature Return Policy
PWS-1K27A-1R Power Supply 1000W/1200W
- Model #: TGM2-PWS-1K27A-1R
- Item #: 9SIVB99KMX1381
- Return Policy: Compiston Store Return Policy
CableMod C-Series Pro ModMesh Sleeved Cable Kit for Corsair RM Black Label/RMi/RMX ...
- Model #: LB0799FTF2T
- Item #: 9SIVARYH6Z0439
- Return Policy: Nature Return Policy
[PowerNex] Mean Well HRP-600-3.3 3.3V 120A 396W Single Output with PFC Function Power ...
- Model #: LB01H335AVA
- Item #: 9SIVARYH6Z2938
- Return Policy: Nature Return Policy
AC to DC Power Supply Single Output 12 Volt 13 Amp 156 Watt
- Model #: LB005T6NAXE
- Item #: 9SIVARYH703817
- Return Policy: Nature Return Policy
Dell CRHDP Inspiron One 2330 Optiplex 9010 AIO Computer Power Supply 200W
- Model #: CRHDP
- Item #: 9SIV1W8E0K1153
- Return Policy: The Best Part Inc. Return Policy
HP 365W Redundant Power Supply Power Supply
- Model #: 532092-B21
- Item #: 9SIVSYTKUV1229
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
PWS-2K21A-BR Power Supply 2U 2200W 80 Plus Titanium L
- Model #: TGM2-PWS-2K21A-BR
- Item #: 9SIVB99KMX0885
- Return Policy: Compiston Store Return Policy
Enermax Revolution DF 750W - 80 Plus Gold Certified PSU, Full-Modular Power Supply, ...
- Model #: LB07P6SJJN6
- Item #: 9SIVARYH6W9846
- 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.
