Power Supplies - Showing 2329 - 2352 of 17943 Products
Refurbished: 1PCS for EFRP-S407 Firewall Power Supply 400WFortiGate FG-600C 1000C
- Model #: 792597709281
- Item #: 9SIVRWKKXD3990
- Return Policy: Nytke team Return Policy
Refurbished: For ME412 M424 ME484 EMM SAS 2RY9V 02RY9V
- Model #: 726727821666
- Item #: 9SIVRWKKXB1633
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for DS850-3-401-01 DS850-3 850W server power supply
- Model #: 731029999463
- Item #: 9SIVRWKKXD1159
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO DC48V 400W Switching Power Supply DP1S-2400V-R
- Model #: 744623298030
- Item #: 9SIVB8UKCU6428
- Return Policy: Magicpower Return Policy
Refurbished: For DPS-1600EB B 1600W
- Model #: 752804577898
- Item #: 9SIVRWKKXB2281
- Return Policy: Nytke team Return Policy
Refurbished: For M1K-2A00V 1000W power supply
- Model #: 726727723373
- Item #: 9SIVRWKKXA2389
- Return Policy: Nytke team Return Policy
Refurbished: For DMX3 DMX4 350W 078-000-052
- Model #: 752804573562
- Item #: 9SIVRWKKXB1710
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO T3630 3640 300W Power Supply L300EGM-00 AC300EBM-00 ...
- Model #: 744623300306
- Item #: 9SIVB8UKCU6669
- Return Policy: Magicpower Return Policy
Refurbished: PowerEdge PE1550 Server Power Supply 11KVW DPS-202AB A 011KVW
- Model #: 722954725920
- Item #: 9SIVB8UKAA7247
- Return Policy: Magicpower Return Policy
Refurbished: DLP75-24-1 24VDC/3.1A 75W Switching Power Supply
- Type: ATX
- Model #: 703454923580
- Item #: 9SIVSY0KUT1690
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: HSTNS-PL05 Tape Drive Power Supply 136W 367404-001 406833-001
- Model #: 753525958096
- Item #: 9SIVB8UKAA9034
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO C20 C20X 725W Switching Power Supply FSP800-09LEN 54Y8842 ...
- Model #: 744623313221
- Item #: 9SIVB8UKD21725
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for R48-1800A Power Module 48V30A 1740W Communication Power ...
- Model #: 792597982035
- Item #: 9SIVB8UKX33141
- Return Policy: Magicpower Return Policy
Refurbished: For JA150KLA SONOSCAPE A5 Color Ultrasound B- Power Supply 17.5V 10A
- Model #: 722954722691
- Item #: 9SIVB8UKAA6943
- Return Policy: Magicpower Return Policy
Refurbished: For DL380G4 server power supply 367238-001 321632-001 600W
- Model #: 726727724981
- Item #: 9SIVRWKKXA2637
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO HF200W 36V5.6A Power Supply HF200W-SC-36
- Model #: 759950241055
- Item #: 9SIVB8UKDA0444
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for G10 800W 865436-101 865435-001 866793-001 865438-B21
- Model #: 716837083719
- Item #: 9SIVB8UKX57591
- Return Policy: Magicpower Return Policy
Refurbished: LFA50F-24-SN Original Disassembly Switching Power Supply 24V/2.1A
- Model #: 753525986693
- Item #: 9SIVB8UKAA8607
- Return Policy: Magicpower Return Policy
Refurbished: For Router NE40-2 NE40-4 MA5200G-2 MA5200G-4 DC NEPS800-D
- Model #: 722954726934
- Item #: 9SIVB8UKAA7353
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For NI01BCBB
- Model #: 759950247453
- Item #: 9SIVMNFKKS3952
- Return Policy: haoyuzeshang Return Policy
Refurbished: KHACHIMO 1U 300W Switching Power Supply FSP300-60WS1
- Model #: 744623302621
- Item #: 9SIVB8UKCV8286
- Return Policy: Magicpower Return Policy
Refurbished: ER50015/T 500-550V 7500W Charging Pile Module
- Model #: 753525986075
- Item #: 9SIVB8UKAA8508
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for SPR1CA800LGP 9PA8001501 SPR2CA800LGP-ANI Power Supply ...
- Model #: 792597710386
- Item #: 9SIVRWKKXD4271
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 200W 220V Switching Power Supply ATX-200SD
- Model #: 744623313788
- Item #: 9SIVB8UKD21770
- Return Policy: Magicpower 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.
