Power Supplies - Showing 961 - 984 of 11993 Products
[PowerNex] Mean Well QP-320D 5V +/-12V 24V 2A 3A 10A 20A 316W Quad Output with PFC ...
- Model #: LB017U4CHB8
- Item #: 9SIVARYH6Z7532
- Return Policy: Nature Return Policy
Seasonic FOCUS Plus 550 Platinum SSR-550PX 550W 80+ Platinum ATX12V & EPS12V Full ...
- Model #: LB074N8YBK9
- Item #: 9SIVARYH6X9425
- Return Policy: Nature Return Policy
New Genuine 320W KDM Power Supply
- Model #: LB004I4TDL6
- Item #: 9SIVARYH702361
- Return Policy: Nature Return Policy
Valcom Wall Rack or Wall Mount 600 mA Power Supply
- Model #: LB00ILCVNV4
- Item #: 9SIVARYH6Z4259
- Return Policy: Nature Return Policy
RAIDMAX Vortex 500W ATX 12V v2.3 / EPS 12V SLI Ready Crossfire Ready 80 Plus Bronze ...
- Model #: LB0849K4PJX
- Item #: 9SIVARYH6Y3108
- Return Policy: Nature Return Policy
Coolmax V-400 Atx V2.03 400w Power Supply
- Model #: LB00DMM0OPO
- Item #: 9SIVARYH6Y6771
- Return Policy: Nature Return Policy
APC Rack Mount PDU, Basic 100V-120V/15A, (14) Outlets, 0U Vertical Rackmount (AP9567)
- Model #: LB000096QRP
- Item #: 9SIVARYH6Z2911
- Return Policy: Nature Return Policy
723595-101 HP 500W PLATINUM HOT-PLUG PS KIT
- Model #: 723595-101New
- Item #: 9SIV173KEJ8385
- Return Policy: Digitzy Return Policy
Altronix Phenolic or Fiberglass Power Supply 6/12/24VDC @ 4A - SMP5
- Model #: LB008RZGTHI
- Item #: 9SIVARYH6Y9462
- Return Policy: Nature Return Policy
IBM System x3550 Type 7978 670W Red PSU Part # 39Y7189
- Model #: LB002XHLOMG
- Item #: 9SIVARYH6Z7819
- Return Policy: Nature Return Policy
MW Mean Well HLG-240H-54B 54V 4.45A 240W Single Output LED Switching Power Supply
- Model #: LB071FGZQ23
- Item #: 9SIVARYH6Y9846
- Return Policy: Nature Return Policy
MEAN WELL MW LRS-350-36 36V 9.7A 350W Single Output Switching Power Supply
- Model #: LB071HSNP83
- Item #: 9SIVARYH6Y3124
- Return Policy: Nature Return Policy
Enclosed Type 52.8W 24V 2.2A RS-50-24 Meanwell AC-DC Single Output RS-50 Series MEAN ...
- Model #: LB01N5NG1OT
- Item #: 9SIVARYH702362
- Return Policy: Nature Return Policy
EZDIY-FAB Premium PSU Replacement Soft Nylon Sleeved Cables Kit for Corsair Type 4 RM ...
- Model #: LB099RWS1Q8
- Item #: 9SIVARYH6Z8740
- Return Policy: Nature Return Policy
Interchangeable Industrial Adapter 24W 15V 1.6A GE24I15-P1J Meanwell AC-DC SMPS ...
- Model #: LB07CJQF6ZF
- Item #: 9SIVARYH6Z9263
- Return Policy: Nature Return Policy
PWS-1K43F-1R 1400W High-Efficiency Digital P. Supply
- Model #: TGM2-PWS-1K43F-1R
- Item #: 9SIVB99KMX1175
- Return Policy: Compiston Store Return Policy
Enermax Revolution DF 850W - 80 PLUS Gold Certified PSU, Full-Modular Power Supply, ...
- Model #: LB07P7XLVJG
- Item #: 9SIVARYH6W9881
- Return Policy: Nature Return Policy
TP-Link TL-FC311B-20 | Gigabit WDM SFP to RJ45 Fiber Media Converter | Fiber to Ethernet ...
- Model #: LB09NB6B62G
- Item #: 9SIVARYH6Y1141
- Return Policy: Nature Return Policy
TRENDnet 120 W Single Output Industrial DIN-Rail Power Supply, Extreme -25 to 70 °C (-13 to ...
- Model #: LB01707FQBI
- Item #: 9SIVARYH6X8077
- Return Policy: Nature Return Policy
Seasonic FOCUS PX-750, 750W 80+ Platinum Full-Modular, Fan Control in Fanless, Silent, ...
- Model #: LB07W4PLZWH
- Item #: 9SIVARYH6W4825
- Return Policy: Nature Return Policy
IBM System x 900W High Efficiency Platinum AC Power Supply 94Y6667
- Model #: LB007RHUTZU
- Item #: 9SIVARYH6Y4460
- Return Policy: Nature Return Policy
Alimentation ATX Xilence Performance A+ III - 550W
- Model #: LB082F2RYF5
- Item #: 9SIVARYH6Z7527
- Return Policy: Nature Return Policy
BUCIER LM2596 LM2596S DC-DC Buck Converter - Voltage Adjustable 4.0-40V to 1.25-37V ...
- Model #: B851
- Item #: 9SIV81TKMN1209
- Return Policy: Electronics store Return Policy
Mean Well USA SD-350D-12 Power Supply; DC-DC; 12V@29.2A; 72-144V In; Enclosed; ...
- Model #: LB00DEFVK5C
- Item #: 9SIVARYH6Z8955
- 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.
