Power Supplies - Showing 721 - 744 of 17942 Products
Dell 3WFNF Inspiron 540S/545S 250W 24-Pin Desktop Power Supply
- Brand: DELL
- Type: Desktop Power Supply
- Maximum Power: 250 W
- Fans: 1 Fan
- Weight: 5
- Model #: 3WFNF
- Item #: 9SIV1W87PX1378
- Return Policy: The Best Part Inc. Return Policy
CableMod RT-Series Pro ModMesh Sleeved Cable Kit for ASUS and Seasonic (Black/Red)
- Model #: LB07H1XHKWG
- Item #: 9SIVARYH6Z1077
- Return Policy: Nature Return Policy
MW Mean Well PB-300P-24 28.8V 10.5A Single Output Battery Charger
- Model #: LB0180VT1ZK
- Item #: 9SIVARYH701801
- Return Policy: Nature Return Policy
PSU for RX200S7 RX200S8 RX300S7 RX300S8 Module Power Supply DPS-450SB A MAX 450W
- Model #: SAB0C5FXFW5Q
- Item #: 9SIVARYK4Z0906
- Return Policy: Nature Return Policy
HP 593831-B21 750 W AT Common Slot Platinum Power Supply Kit
- Fans: 1
- Efficiency: 94%
- Input Voltage: 240 V AC
- Dimensions: 7.38" Height x 10.38" Width x 16.31" Depth
- Weight: 8 lbs.
- Parts: 30 DAYS WARRANTY
- Labor: 30 DAYS WARRANTY
- Model #: 593831-B21
- Item #: 9SIVT4DKW91172
- Return Policy: qinsihaoxue shop Return Policy
MEAN WELL LRS-350-12 DC Switching Power Supply 12V 29A 350W for CCTV, Computer ...
- Model #: LB07VTLJS18
- Item #: 9SIVARYH6W5901
- Return Policy: Nature Return Policy
Compaq 163555-001 Power Supply 90W Atx Ipaq
- Model #: 163555-001
- Item #: 9SIV1W87N60900
- Return Policy: The Best Part Inc. Return Policy
The620Guy Power Man IP-P300DF1-0 300 Watts 300W ATX12V Desktop Switching Power ...
- Model #: LB01JYRFKK4
- Item #: 9SIVARYH6Z3186
- Return Policy: Nature Return Policy
220W Power Supply Unit for HP Pavilion Slimline S5 S5-1xxx TouchSmart 310-1205la ...
- Model #: SAB07JYNMXJV
- Item #: 9SIVARYK4X0371
- Return Policy: Nature Return Policy
CableMod C-Series Pro ModFlex Sleeved 8-pin PCI-e Cable for Corsair RM Yellow ...
- Model #: LB08GJQKR9V
- Item #: 9SIVARYH6Z0437
- Return Policy: Nature Return Policy
N249M, FR597, WU123, T164M, RM110, CY826, C112T, D390T, F283T, G238T, V6V76, ...
- Model #: D255P-00
- Item #: 9SIV1736N22022
- Return Policy: Digitzy Return Policy
MW Mean Well SP-240-24 24V 10A 240W Single Output with PFC Function Power Supply
- Model #: LB017U45I2I
- Item #: 9SIVARYH6Z7803
- Return Policy: Nature Return Policy
HP DPS-1200FB 1200W HIGH EFFICIENCY POWER SUPPLY
- Parts: 30 days warranty
- Labor: 30 days warranty
- Model #: DPS-1200FB
- Item #: 9SIV1736N22751
- Return Policy: Digitzy Return Policy
CableMod RT-Series Pro ModFlex Sleeved Cable Kit for ASUS and Seasonic (Black + White)
- Model #: LB089KPPP1S
- Item #: 9SIVARYH6Z0451
- Return Policy: Nature Return Policy
Power Supply 600W 80+ Bronze Certified PSU (ARESGAME, AGW600)
- Model #: SAB0B1DPGBW8
- Item #: 9SIVARYK4W7158
- Return Policy: Nature Return Policy
280W Power Supply Replacement for Dell Optiplex GX520 GX620 740 745 755 210L 320 330/ ...
- Model #: SAB07V2P5S65
- Item #: 9SIVARYK4X0343
- Return Policy: Nature Return Policy
Switching Power Supply MS-50-5 Small Size Series 5V10A
- Model #: SAB0CDF6B1JR
- Item #: 9SIVARYK4X2392
- Return Policy: Nature Return Policy
12V (6A) A/C Power Supply to Dual Female D-Tap Outputs (8')
- Model #: LB08HR9Z9WH
- Item #: 9SIVARYH6Y2508
- Return Policy: Nature Return Policy
Rotolight spare Power Supply for use with NEO and NEO 2
- Model #: LB015MFPFZM
- Item #: 9SIVARYH6Y5482
- Return Policy: Nature Return Policy
SPI Power Supply ATX-450PN-B204 450W ATX2.2 (12V) Ball Bearing Fan 20? 2xSATA ...
- Model #: LB004JUXRJ8
- Item #: 9SIVARYH6Y2513
- Return Policy: Nature Return Policy
HP 240W Pro 6000 6005 6200 Elite 8000 8100 8200 SFF power supply 503375-001 ...
- Parts: Warranty: 180 days
- Labor: Warranty: 180 days
- Model #: 508151-001
- Item #: 9SIV1W87N60107
- Return Policy: The Best Part Inc. Return Policy
PFC Function Enclosed 312W 24V 13A SP-320-24 Meanwell AC-DC Single Output SP-320 MEAN ...
- Model #: LB07CQLY57J
- Item #: 9SIVARYH6Z2373
- Return Policy: Nature Return Policy
Enclosed Type 132W 3.3V 40A LRS-200-3.3 Meanwell AC-DC Single Output LRS-200 Series ...
- Model #: LB06X9689JG
- Item #: 9SIVARYH6Z3183
- Return Policy: Nature Return Policy
CableMod C-Series Pro ModMesh Sleeved 8-pin PCI-e Cable for Corsair RM Yellow ...
- Model #: LB08GJQN1TT
- Item #: 9SIVARYH6Z1811
- 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.
