Power Supplies - Showing 793 - 816 of 11996 Products
403778-001 HP Power Supply 240 Watt For Evo Dc7700 Sff Models
- Model #: 403778-001
- Item #: 9SIV1W87N60850
- Return Policy: The Best Part Inc. Return Policy
Garmin 0101252700 GXM 53 Power and Audio Module, Black, Small
- Model #: LB071KVQ1CT
- Item #: 9SIVARYH6Y3091
- Return Policy: Nature Return Policy
240W Watt Desktop Power Supply Unit PSU for Dell Optiplex 390 790 990 960 7010 9010 3010 ...
- Model #: SAB07JR7SNLP
- Item #: 9SIVARYK4X1658
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Mean Well 12V Switching Power Supply 350W 12V 29A LRS-350
- Model #: LB07DKG9D27
- Item #: 9SIVARYH6Y9841
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HSTNS-PF01 HPE 500W Non-HOT Plug Power Supply
- Model #: HSTNS-PF01New
- Item #: 9SIVSYTKUT2632
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
CableMod RT-Series Pro ModFlex Sleeved 8-pin PCI-e Cable for ASUS and Seasonic (Black + ...
- Model #: LB08GJR93N7
- Item #: 9SIVARYH6Z0443
- Return Policy: Nature Return Policy
Enclosed Type 35W NET-35C Meanwell AC-DC Triple Output NET-35 Series MEAN WELL ...
- Model #: LB07CQQ16MZ
- Item #: 9SIVARYH6Z9448
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240W PC Power Supply, H240EM-00 L240AM-00 B240NM-00 Desktop Chassis Modular Power ...
- Model #: SAB0CDL13S6Q
- Item #: 9SIVARYK4X1857
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Mini-Box picoPSU-90, world's tiniest 12V DC-DC ATX power supply unit (even smaller than ...
- Model #: LB005TWE3ZM
- Item #: 9SIVARYH6Z7814
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TRENDnet 480W, 48V DC, 10A AC to DC DIN-Rail Power Supply with PFC Function, TI-S48048
- Model #: LB07KZBV27B
- Item #: 9SIVARYH6X8105
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MW Mean Well PSP-600-48 48V 12.5A 600W with PFC and Parallel Function Power Supply
- Model #: LB071FL51QX
- Item #: 9SIVARYH702816
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Whatsminer P21E Miner Power Supply PSU for M32 M10s, M20s, M21s M30s BTC Mining
- Model #: KB0BFFC4H34
- Item #: 9SIVARYKD56218
- Return Policy: Nature Return Policy
LINEAR PIP24VDCRU PIP: Switch Mode Plug-in-Power Supply 24
- Model #: LB005IZZQUQ
- Item #: 9SIVARYH6Z4249
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Zeus GAMDIAS RGB Gaming PC Power Supply 650W 80 Plus Gold Certified 650 Watt PSU for ...
- Model #: LB07WCT24GH
- Item #: 9SIVARYH6X5090
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EnGenius 480W Open Frame Power Module
- Model #: LB08VJ7P5D4
- Item #: 9SIVARYH6Z4610
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280W Power Supply Replacement for Dell Optiplex GX520 GX620 740 745 755 210L 320 330/ ...
- Model #: SAB07V2P5S65
- Item #: 9SIVARYK4X0343
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Power Supply for Optiplex GX Series Models With M
- Weight: 4
- Model #: FR607
- Item #: 9SIV1W8CYE1538
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Switching Power Supply MS-50-5 Small Size Series 5V10A
- Model #: SAB0CDF6B1JR
- Item #: 9SIVARYK4X2392
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1 Pc of TPS658620ZQZR Integrated Circuits Battery Management Power Supply 120BGA ...
- Model #: LB09N3JDGS7
- Item #: 9SIVARYH703571
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220W Power Supply Unit for HP Pavilion Slimline S5 S5-1xxx TouchSmart 310-1205la ...
- Model #: SAB07JYNMXJV
- Item #: 9SIVARYK4X0371
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CableMod C-Series Pro ModMesh Sleeved Cable Kit for Corsair RM Yellow Label/AXi/HXi ...
- Model #: LB0799BH95P
- Item #: 9SIVARYH6Z1808
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POINWER H240AS-01 H240AS-00 L240AS-00 2TXYM 3WN11 240W Optiplex 7010 SFF Power ...
- Model #: SAB07C7CVM4M
- Item #: 9SIVARYK4W7228
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Logisys New PC Power Supply Upgrade for Compaq Presario SR5703WM (NC783AA) ...
- Model #: SAB007M5TWRS
- Item #: 9SIVARYK4W9372
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CableMod C-Series Pro ModMesh Sleeved 8-pin PCI-e Cable for Corsair RM Yellow ...
- Model #: LB08GJQMDFB
- Item #: 9SIVARYH6Z1054
- 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.
