Power Supplies - Showing 2017 - 2040 of 17938 Products
Refurbished: POWER-ONE UTstarcom CPCI 250W Power Supply CPD 250-4530
- Model #: 703454716663
- Item #: 9SIVB8UKAJ6105
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply ENHANCE 20Pin 200W Power Supply ENP-2120A
- Model #: 722954988981
- Item #: 9SIVB8UKAJ5579
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO DC 100W Power Supply PSC100-D-1
- Model #: 759950248405
- Item #: 9SIVB8UKDF9490
- Return Policy: Magicpower Return Policy
Refurbished: Communication Power Module HRS1150-Q000
- Model #: 722954726576
- Item #: 9SIVT8HKWF3229
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: R48-2000A3 48V30A/1740W high-efficiency Power Supply Rectifier Module
- Model #: 722954732966
- Item #: 9SIVB8UKAA5917
- Return Policy: Magicpower Return Policy
Refurbished: Power 95882-02/04/06 HS-PSU-850-AC-INT DS850-3-002
- Model #: 722954731150
- Item #: 9SIVB8UKAA5693
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 1300W CRPS Power Supply PSSF132202A H79286-010 ...
- Model #: 792597983964
- Item #: 9SIVB8UKX56966
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for English REG1K0135A2 150-1000V-0-133A-40KW charging pile ...
- Model #: 792597718238
- Item #: 9SIVRWKKXD7175
- Return Policy: Nytke team Return Policy
Refurbished: T5810 T7810 T7910 Workstation Power Supply H1300EF-02 T31JM V5K16
- Model #: 724780181888
- Item #: 9SIVSY0KUT2575
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: Power Supply for SH PR1100-P 1100W
- Model #: 724780182090
- Item #: 9SIVB8UKA98874
- Return Policy: Magicpower Return Policy
Refurbished: For X5726A 114-00148 01PG678 NETAPP FAS2650/2750 912W Power Supply
- Model #: 752804572398
- Item #: 9SIVRWKKXA2135
- Return Policy: Nytke team Return Policy
Refurbished: For Z600 Power Supply 482513-003 508548-001 DPS-725AB
- Model #: 726099251344
- Item #: 9SIVRWKKXD1366
- Return Policy: Nytke team Return Policy
Refurbished: For AUP-X-250 SPI3001UH AUP-X-300B RP- 2005-00 FSP350-50GMN Power ...
- Model #: 726727819564
- Item #: 9SIVRWKKXB1335
- Return Policy: Nytke team Return Policy
Refurbished: For ZM750-XG 750W Power Supply GLOROCK
- Model #: 703454718827
- Item #: 9SIVB8UKAJ6331
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO E1020T 1020 1021 1026 250W Power Supply HK350-55BP S1 ...
- Model #: 744623300689
- Item #: 9SIVB8UKCU6772
- Return Policy: Magicpower Return Policy
Refurbished: Powervault 136T 65W Power Supply 3E540 3-02778-01 96-5333-04
- Model #: 703454714522
- Item #: 9SIVB8UKAB4460
- Return Policy: Magicpower Return Policy
Refurbished: PWS-341P-1H PWS-563-1H PWS-605P-1H 1U Power Supply
- Model #: 722954721236
- Item #: 9SIVSYTKUT1193
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: KHACHIMO 1U 280W Power Supply DPS-280AB-4 B DPS-280AB-4 A ...
- Model #: 745635674881
- Item #: 9SIVB8UKDA0196
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for Switching Power Module UMP04S-S2Q-S2U-S2L-00
- Model #: 792597722297
- Item #: 9SIVRWKKXD8429
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for X306M Power Supply API4FS40-030L 24R2674 39Y7295
- Model #: 716837090502
- Item #: 9SIVB8UKX60839
- Return Policy: Magicpower Return Policy
Refurbished: For 0231A6NC PSR450-12A1 YM-2451NA01R
- Model #: 752804578680
- Item #: 9SIVRWKKXB2405
- Return Policy: Nytke team Return Policy
Refurbished: 220V 20Pin Power Supply MATX-145SE-HB MATX-145SE LM-2156 P3 ...
- Model #: 753525944785
- Item #: 9SIVB8UKAA5410
- Return Policy: Magicpower Return Policy
Refurbished: 341-0338 400W ASR1001-PWR-AC Server Power Supply
- Model #: 753525985122
- Item #: 9SIVB8UKAA9195
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for SYPM10K16H Power Module
- Model #: 792597719822
- Item #: 9SIVRWKKXD7626
- Return Policy: Nytke team 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.
