Power Supplies - Showing 2137 - 2160 of 17990 Products
Refurbished: LDC15F-1 Original Disassembly Industrial Medical Power Supplies 5V/2A
- Model #: 753525956368
- Item #: 9SIVRTNKX43554
- Return Policy: Jiamayanonly Return Policy
Refurbished: For MRG-3800V-R 800W ServerRedundant 1+1 Power Module
- Model #: 722954732133
- Item #: 9SIVB8UKAA5790
- Return Policy: Magicpower Return Policy
Refurbished: PAC75WA ECC500 V600R001C01 V600R001C00
- Model #: 753525932614
- Item #: 9SIVB8UKA99089
- Return Policy: Magicpower Return Policy
Refurbished: For ML530G1 ML570G1 Power Supply 144596-001 157793-001
- Model #: 726727725285
- Item #: 9SIVRWKKXA2522
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for U1A-D1600-G 1U Server Redundant Power Supply Module 1600W ...
- Model #: 792597723409
- Item #: 9SIVRWKKXD8781
- Return Policy: Nytke team Return Policy
Refurbished: T3420 T3620 T1700 T20 T30 Power 525W 8+4+8 Graphics Card
- Model #: 722954731112
- Item #: 9SIVB8UKAA5676
- Return Policy: Magicpower Return Policy
Refurbished: For 24-pin power supply PS-5241-03 HK340-71FP PS-5241-02 PC9053 240W
- Model #: 726727729818
- Item #: 9SIVRWKKXA3060
- Return Policy: Nytke team Return Policy
Refurbished: X226 Server Power 530W 39Y7277 39Y7278, DPS-530AB A
- Model #: 722954734717
- Item #: 9SIVB8UKAA6077
- Return Policy: Magicpower Return Policy
Refurbished: PWR-C49E-300AC-R PWR-C49-300AC V04 C4948E Switch Power Supply ...
- Model #: 753525958065
- Item #: 9SIVB8UKAA9022
- Return Policy: Magicpower Return Policy
Refurbished: 24V5A 12V3A 150W Power Supply HS150-DM-A
- Model #: 703454716533
- Item #: 9SIVB8UKAJ6084
- Return Policy: Magicpower Return Policy
Refurbished: PWR-MX80-AC YM-2651D 740-028288 MX80 Power module Router FSC003
- Model #: 724780779436
- Item #: 9SIVB8UKAA6759
- Return Policy: Magicpower Return Policy
Refurbished: ETP4830-A1 48V30A Embedded Telecom Power Supply ETP4830
- Model #: 724780181178
- Item #: 9SIVB8UKA98756
- Return Policy: Magicpower Return Policy
Refurbished: 700W Switching Power Supply DPS-770AB-1A DPS-770AB-1 A
- Model #: 753525941883
- Item #: 9SIVB8UKAA5032
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO COLDWATT 650W Switching Power Supply ...
- Model #: 744623314808
- Item #: 9SIVB8UKD21861
- Return Policy: Magicpower Return Policy
Refurbished: For 9010 2330 9020 All-in-One Power Supply L200EA-00 D200EA-00 0RYK84
- Model #: 752804576457
- Item #: 9SIVRWKKXB2088
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for R4850G G2 G6 N2 N6 Communication Power Supply ETP48-200 48V50A
- Model #: 716837095194
- Item #: 9SIVB8UKX62448
- Return Policy: Magicpower Return Policy
Refurbished: EPW30B-48A Communication Power Rectifier Module
- Model #: 753525957884
- Item #: 9SIVT8HKWF2806
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: R4850G2 G6 N2 N6 R4875G1 G5 Communication Power Supply Rectifier Module ...
- Model #: 722954726606
- Item #: 9SIVT8HKWF2605
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: For YM-2151E 150W Switch Server Power Supply
- Model #: YM-2151E
- Item #: 9SIVRWKKXB2607
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for PRM400 Device Power Supply
- Model #: 792597983377
- Item #: 9SIVB8UKX56878
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS 920W power supply for PWS-920P-SQ server
- Model #: 792597983858
- Item #: 9SIVB8UKX56968
- Return Policy: Magicpower Return Policy
Refurbished: Switching Power Supply API2HR22-000
- Model #: 753525937084
- Item #: 9SIVB8UKA99530
- Return Policy: Magicpower Return Policy
Refurbished: GW-T200SHA Host Computer Chassis Power Supply gw-tfx180
- Model #: 722954733345
- Item #: 9SIVB8UKAA5929
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 500W Power Supply FSP500-20TGBAA/B PA-1181-10AC 10AB ...
- Model #: 744623305943
- Item #: 9SIVB8UKD01935
- 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.
