Power Supplies - Showing 2161 - 2184 of 17941 Products
Refurbished: For M1Z-5500V Firewall Industrial Computer 2U Server Power Module 500W
- Model #: 722954728433
- Item #: 9SIVB8UKAA5440
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 500W Power Supply DPS-500HB A
- Model #: 759950244292
- Item #: 9SIVB8UKDA9110
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 15V 10A 150W For PBA150F PBA150F-15 PBA150F-15-N
- Model #: 759950248108
- Item #: 9SIVB8UKDF9467
- Return Policy: Magicpower Return Policy
Refurbished: For W700WC3 R630 R640 Power Supply 700W
- Model #: 726727818505
- Item #: 9SIVRWKKXB1212
- Return Policy: Nytke team Return Policy
Refurbished: X3250M3 351W Server Power Supply 49Y4661 49Y4663
- Model #: 722954736384
- Item #: 9SIVB8UKAA6248
- Return Policy: Magicpower Return Policy
Refurbished: P650B 650W ATX 12V 50-60Hz Active PFC Power Supply
- Model #: 724780183226
- Item #: 9SIVB8UKA98985
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for EVR200CI-2 Electric Vehicle Contactor 200A-12VDC Relay
- Model #: 792597722037
- Item #: 9SIVRWKKXD8279
- Return Policy: Nytke team Return Policy
Refurbished: For H3C S7502E S7503E-S PSR650-A Switch 661W Power Supply
- Model #: 722954730450
- Item #: 9SIVSY0KUT1418
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: Power Supply For LPT63-M +5/+15/-15V 60W LPT63
- Model #: 753525991796
- Item #: 9SIVB8UKAA8106
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For uMP4T-S2D-S2D-20-B-428 uMP4T-S2D-S2D-20 -B-428
- Model #: 753525991000
- Item #: 9SIVB8UKAA8031
- Return Policy: Magicpower Return Policy
Refurbished: PMC30E-2 Original Disassembly Switching Power Supply 5V+-15V 30W ...
- Model #: 724780777715
- Item #: 9SIVB8UKAA7593
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for PSR450-12A S6520X/S6800 450W Power Supply
- Model #: 792597727414
- Item #: 9SIVB8UKX32805
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for RG-PA60 RG-PA70I1 PA800IF RG-M5000E-AC60 Power Module
- Model #: 792597724970
- Item #: 9SIVRWKKXD9252
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 12V 13A 161W For DPSN-150BP M1R DPSN-150BP KF
- Model #: 759950242083
- Item #: 9SIVB8UKDA8784
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For CRPS 1300W Switching Power Supply PAC800D12-B1 ...
- Model #: 726099222603
- Item #: 9SIVB8UKCU6253
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 80plus Platinum CRPS 1300W Switching Power Supply ...
- Model #: 744623298337
- Item #: 9SIVB8UKCU6405
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 01AC403 01AC404 R0850-F0070-01 TDPS-800FB A 800W storage ...
- Model #: 716837098058
- Item #: 9SIVB8UKX63082
- Return Policy: Magicpower Return Policy
Refurbished: 1200W Power Supply C240 M3 UCSC-PSU2-1200 V02 341-0472-02 ...
- Model #: 753525986549
- Item #: 9SIVB8UKAA8598
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply 3.3V 5V +-12V DC Stabilized Power Module NTQ123
- Model #: 724780778538
- Item #: 9SIVB8UKAA6649
- Return Policy: Magicpower Return Policy
Refurbished: TotalStorage DS300 DS400 Controller Battery 13N1785
- Model #: 722954723773
- Item #: 9SIVB8UKAA7026
- Return Policy: Magicpower Return Policy
Refurbished: For FSP300-50FCB FSP350-50FCB FSP400-50FCB FSP300-731UJ Power ...
- Model #: 722954736322
- Item #: 9SIVB8UKAA6223
- Return Policy: Magicpower Return Policy
Refurbished: For S5500T S3900 0305G06K STL1SPCBA STL1CONT04 0302G279
- Model #: 726727816129
- Item #: 9SIVRWKKXB0683
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO AIO 130W Switching Power Supply GW-D19-130
- Model #: 744623310060
- Item #: 9SIVB8UKD12045
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO OptiPlex 390 790 990 3010 7010 9010 Power Supply D240ES-00 ...
- Model #: 744623299020
- Item #: 9SIVB8UKCU6586
- 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.
