Power Supplies - Showing 1993 - 2016 of 17940 Products
Refurbished: 1Pcs for relay 24VDC 250A lithium battery contactor EVHB250A-24B
- Model #: 792597718368
- Item #: 9SIVRWKKXD7037
- Return Policy: Nytke team Return Policy
Refurbished: MBU60-201 For Motic industrial medical power module+12V3A+5V7A
- Model #: 724780778705
- Item #: 9SIVB8UKAA6617
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO GX520 GX620 5100C 5150C 220W Switching Power Supply ...
- Model #: 744623301020
- Item #: 9SIVB8UKCV8128
- Return Policy: Magicpower Return Policy
Refurbished: MAX POWER 500W Power Supply PS-4501-2 L84091
- Type: ATX
- Model #: 753525937749
- Item #: 9SIVSYTKUT3231
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: NS-5400-PWR-AC 150W Firewall Module Power Supply
- Model #: 753525948707
- Item #: 9SIVB8UKAA0034
- Return Policy: Magicpower Return Policy
Refurbished: For 341-0042-04 4500-e pwr-c45-1400acv AC aa24280
- Model #: 752804577355
- Item #: 9SIVRWKKXB2205
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 1U power supply FSP270-60LE 500W FLEX small chassis NAS desktop ...
- Model #: 716837089858
- Item #: 9SIVB8UKX60462
- Return Policy: Magicpower Return Policy
Refurbished: SC1425 Server Power Supply 450W 0C8979,0FD832 DPS-450HB B
- Model #: 722954726033
- Item #: 9SIVB8UKAA7243
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for M9099zS600M70z all-in-one power supply PS- 2151-01 PC9051 ...
- Model #: 716837096733
- Item #: 9SIVB8UKX62847
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for power supply GW-CRPS550N2C 550W RG-PA550l-F TCS81-100-P
- Model #: 716837093183
- Item #: 9SIVB8UKX61702
- Return Policy: Magicpower Return Policy
Refurbished: For 4 + 4-pin small chassis power supply D18-180P1A PCH019 PA-1181-3HB
- Model #: 726727729061
- Item #: 9SIVRWKKXA2849
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for DS-AC460E-F switching network, power supply
- Model #: 792597712083
- Item #: 9SIVRWKKXD4655
- Return Policy: Nytke team Return Policy
Refurbished: For 600 680 800G2 power supply PS-4281-1HA D14-280P1A PCE015 PCD019
- Model #: 726727731965
- Item #: 9SIVRWKKXA3404
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 750W Switching Power Supply DPS-750AB-31 A DPS-750AB-31A ...
- Model #: 744623304274
- Item #: 9SIVB8UKCW6179
- Return Policy: Magicpower Return Policy
Refurbished: 3250 7450 Power Supply H155EA-01 HU200EPA-00 NMCMW 09121N
- Model #: 722954722820
- Item #: 9SIVSY0KUR8160
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For S5600T S2200T Storage DC Power Supply HSP650-S12D 0227G004
- Model #: 726727816044
- Item #: 9SIVRWKKXB0439
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for 530s 531s BESTEC TFX0250D5W API14PC17 Power Supply
- Model #: 792597707201
- Item #: 9SIVRWKKXD3560
- Return Policy: Nytke team Return Policy
Refurbished: For PS6100 SP Controller PN: 07V250 E09M001 07V250 1pcs
- Model #: 726727730487
- Item #: 9SIVRWKKXA3270
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS For LTO6 HH FC Drive Module 35P1982 TS3100 TS3200 39U3428
- Model #: 716837096016
- Item #: 9SIVB8UKX62694
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for H1U-6150P H1U-6200P H1U-6250P industrial computer power supply
- Model #: 716837086239
- Item #: 9SIVB8UKX58909
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 280W Switching Power Supply PS-5281-7VR PS-5281-7 ...
- Model #: 744623305653
- Item #: 9SIVB8UKD01915
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 500X WS - C4 500X - 16/32/24 SFP + C4KX-PWR-750AC-R Power Supply
- Model #: 792597725595
- Item #: 9SIVRWKKXD9391
- Return Policy: Nytke team Return Policy
Refurbished: For DPS-500AB-9A E D switched switching power server
- Model #: 703454721506
- Item #: 9SIVB8UKAJ6608
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For 12V29A 350W Power Supply S8FS-C35012-400
- Model #: 759950246753
- Item #: 9SIVB8UKDA9439
- 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.
