Power Supplies - Showing 865 - 888 of 12000 Products
Velleman LABPS3005SMU - DC LAB Switching Mode Power Supply 0-30 VDC / 0-5 A Max with LCD ...
- Model #: LB01M0EIJXS
- Item #: 9SIVARYH6Y6282
- Return Policy: Nature Return Policy
Computer Parts, Durable PC Power Supply Computer Accessories with Clear for PC(British Flag ...
- Model #: LB09CTLHP15
- Item #: 9SIVARYH700559
- Return Policy: Nature Return Policy
MW Mean Well HLG-185H-36A 36V 5.2A 185W Single Output LED Switching Power Supply
- Model #: LB017U2SWAU
- Item #: 9SIVARYH6Y9465
- 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
CableMod C-Series Pro ModMesh Sleeved Cable Kit for Corsair RM Yellow Label/AXi/HXi ...
- Model #: LB0799BH95P
- Item #: 9SIVARYH6Z1808
- Return Policy: Nature Return Policy
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
Compaq 163555-001 Power Supply 90W Atx Ipaq
- Model #: 163555-001
- Item #: 9SIV1W87N60900
- Return Policy: The Best Part Inc. Return Policy
Power One Internal AC Power Supply Catalyst Module Mfr P/N SP644 Power Supplies
- Model #: SP644
- Item #: 9SIV1W87N60599
- Return Policy: The Best Part Inc. Return Policy
In Win AJ Series IP-P300AJ2-0 300W ATX12V Ver 2.2 AC Power Supply
- Fans: 1
- Model #: IP-P300AJ2-0
- Item #: 9SIV1W8KBE2780
- Return Policy: The Best Part Inc. Return Policy
Power Supply (225W, Dmo, Worldwide)Thinkcentre M55 * Si *
- Model #: 41N3432
- Item #: 9SIV1W8G9Z8754
- Return Policy: The Best Part Inc. 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 #: 9SIVSYTKUT8626
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
DC 12V 5A Switching Power Supply. Good for Water Pump or LED Light
- Model #: LB00EISHWJC
- Item #: 9SIVARYH6Z8965
- 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
HP 613763-001
- Model #: 613763-001
- Item #: 9SIV1W87N60312
- Return Policy: The Best Part Inc. 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
280W Power Supply Replacement for Dell Optiplex GX520 GX620 740 745 755 210L 320 330/ ...
- Model #: SAB07V2P5S65
- Item #: 9SIVARYK4X0343
- 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
Power Supply 600W 80+ Bronze Certified PSU (ARESGAME, AGW600)
- Model #: SAB0B1DPGBW8
- Item #: 9SIVARYK4W7158
- 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
XK376 Dell 305W Power SupplyOptiplex GX, Dimension Tower
- Model #: XK376
- Item #: 9SIV1W87N63661
- Return Policy: The Best Part Inc. 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
CableMod C-Series Pro ModFlex Sleeved 8-pin PCI-e Cable for Corsair RM Yellow ...
- Model #: LB08GJQKR9V
- Item #: 9SIVARYH6Z0437
- Return Policy: Nature Return Policy
DC Power Supply, 24VDC, 3.1A, 50/60Hz
- Model #: LB00DWIODVY
- Item #: 9SIVARYH703805
- 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
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.
