Power Supplies - Showing 1249 - 1272 of 17997 Products
Switching Power Supply MS-50-5 Small Size Series 5V10A
- Model #: SAB0CDF6B1JR
- Item #: 9SIVARYK4X2392
- 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
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
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
MW Mean Well PB-300P-24 28.8V 10.5A Single Output Battery Charger
- Model #: LB0180VT1ZK
- Item #: 9SIVARYH701801
- Return Policy: Nature 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
IBM System x 550W High Efficiency Platinum AC Power Supply 94Y6668
- Model #: LB007MCILHS
- Item #: 9SIVARYH6Z8383
- 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
Power Supply (225W, Dmo, Worldwide)Thinkcentre M55 * Si *
- Model #: 41N3432
- Item #: 9SIV1W8G9Z8754
- Return Policy: The Best Part Inc. 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
CableMod C-Series Pro ModMesh Sleeved Cable Kit for Corsair RM Yellow Label/AXi/HXi ...
- Model #: LB0799BH95P
- Item #: 9SIVARYH6Z1808
- Return Policy: Nature Return Policy
PSU for ML110 G7 350W Power Supply 629051-001 644744-001 S10-350P1A
- Model #: SAB09M8PSLYK
- Item #: 9SIVARYK4Z1170
- Return Policy: Nature Return Policy
LED Driver 75.6W 42V 1.8A CEN-75-42 Meanwell AC-DC Switching PS CEN-75 Series MEAN WELL ...
- Model #: LB07CK1J8SN
- Item #: 9SIVARYH6Z8569
- Return Policy: Nature Return Policy
HP 613762-001 PS-4241-9HB Proprietry Power Supply
- Weight: 0.88
- Model #: 613762-001
- Item #: 9SIV1W87PX3344
- Return Policy: The Best Part Inc. Return Policy
PSU for 180W SFF Power Supply PS-4181-7 DPS-180AB-20 A PCE019 793073-001 ...
- Model #: SAB0C5FPBHWT
- Item #: 9SIVARYK4Z1032
- Return Policy: Nature Return Policy
Modular Medical Adapter 21.6W 12V 1.8A PM-20-12 Meanwell AC-DC SMPS PM-20 Series ...
- Model #: LB0180W8AUG
- Item #: 9SIVARYH702534
- Return Policy: Nature Return Policy
Enermax Cyberbron 500W Power Supply, 80 PLUS Bronze, Non-Modular PSU, Silent Fan, Black ...
- Model #: LB08K1ZBYPZ
- Item #: 9SIVARYH6W8645
- Return Policy: Nature Return Policy
[PowerNex] Mean Well PT-6503 3.3V 5V 12V 1A 6A 61.8W Triple Output with 3.3V output ...
- Model #: LB005T6IW7S
- Item #: 9SIVARYH703780
- Return Policy: Nature Return Policy
Desktop Industrial Adapter 102W 12V 8.5A GST120A12-R7B Meanwell AC-DC SMPS ...
- Model #: LB07CQL23M2
- Item #: 9SIVARYH702532
- Return Policy: Nature Return Policy
Power One Power Supply
- Model #: SPM3A2M4
- Item #: 9SIVSY0KWU2184
- Return Policy: LiAnMengYuShangDian Return Policy
2600W Mining Power Supply Support 8 GPUs GPU Mining Rig, ETH Miner, Active PFC, PC 2000W ...
- Model #: SAB0B3R5TBTG
- Item #: 9SIVARYK4X0338
- Return Policy: Nature Return Policy
SilverStone Technology ET500-B Silverstone 80 Plus Bronze 500W ATX Switching Power ...
- Model #: LB08DLC2H9Z
- Item #: 9SIVARYH6Z0448
- 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.
