Power Supplies - Showing 2281 - 2304 of 17940 Products
Refurbished: KHACHIMO 500W Switching Power Supply MRS-6500P-R B011670002
- Model #: 744623310565
- Item #: 9SIVB8UKD12092
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for A840R-G-10 YM-2102B YM-2102BBR Server Redundant Power ...
- Model #: 792597710447
- Item #: 9SIVRWKKXD4274
- Return Policy: Nytke team Return Policy
Refurbished: LEA50F-5 Original Disassembly Switching Power Supply 5V/10A
- Model #: 753525955897
- Item #: 9SIVB8UKAA8793
- Return Policy: Magicpower Return Policy
Refurbished: For DPS-1400EB A 54Y8978 1400W P920 Server Power Supply
- Model #: 752804579229
- Item #: 9SIVRWKKXB2410
- Return Policy: Nytke team Return Policy
Refurbished: 48V 2000W Power Supply Module For CSU520Z
- Model #: 753525989502
- Item #: 9SIVB8UKAA7780
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for M930T T4900K desktop 10-pin power supply 400W 500W 600W with ...
- Model #: 792597982134
- Item #: 9SIVB8UKX56670
- Return Policy: Magicpower Return Policy
Refurbished: FSP 650W Switching Power Supply FSP650-50KPN
- Model #: 753525935561
- Item #: 9SIVB8UKA99374
- Return Policy: Magicpower Return Policy
Refurbished: For E450 Power Supply FSP180-10TGBAA PA-1181-10AC 180W 550W 6+4+8P
- Model #: 703454720738
- Item #: 9SIVB8UKAJ6546
- Return Policy: Magicpower Return Policy
Refurbished: Communication Power Module PAC-2200WA
- Model #: 722954723421
- Item #: 9SIVT8HKWF3062
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: For ACE-A160A ACE-A160-R11 ACE-A160-R10 ACE-4860AP ACE-4860AP-RS
- Model #: 726727819069
- Item #: 9SIVRWKKXB1299
- Return Policy: Nytke team Return Policy
Refurbished: Optipex 7000 500W Power Supply DYW3N HU500EPS-00
- Type: ATX
- Model #: 703454736487
- Item #: 9SIVSY0KUT9948
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: KHACHIMO PowerEdge 1550 240W Switching Power Supply DPS-202AB A ...
- Model #: 744623305028
- Item #: 9SIVB8UKD01861
- Return Policy: Magicpower Return Policy
Refurbished: SH SB-3163FA 300W Power Supply SH-3202-P
- Model #: 753525942750
- Item #: 9SIVB8UKAA5180
- Return Policy: Magicpower Return Policy
Refurbished: For POWER-ONE Power Supply For MAP110-3000P
- Model #: 753525989793
- Item #: 9SIVB8UKAA7753
- Return Policy: Magicpower Return Policy
Refurbished: S5735-S48S4X S5731 Switch 150W Power Module PAC150S12-R
- Model #: 722954721496
- Item #: 9SIVB8UKAA6770
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 780 790 990 7010 9010 180W Power Supply L180EU-00 F180EU-00 ...
- Model #: 744623315829
- Item #: 9SIVB8UKD46460
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO -48V 3200W Power Supply R48-3200
- Model #: 759950247767
- Item #: 9SIVB8UKDF9430
- Return Policy: Magicpower Return Policy
Refurbished: For FLEX-1500 FLEX-2000 Yiheng 200W Small 1U Power Supply
- Model #: 726727729047
- Item #: 9SIVRWKKXA2861
- Return Policy: Nytke team Return Policy
Refurbished: V3268 3660 3668 3050 7050 6Pin 240W Power Supply H240ES-02 HU240AS-02 ...
- Model #: 753525935295
- Item #: 9SIVB8UKA99318
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS PWR-C1-350WAC For Switch Power Supply 3850 341-0562-01 AA26270
- Model #: 753525934137
- Item #: 9SIVB8UKA99200
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 80plus Sliver FLEX Small 1U 220W Switching Power Supply ...
- Model #: 744623312569
- Item #: 9SIVB8UKD19572
- Return Policy: Magicpower Return Policy
Refurbished: DC 1100W Switching Power Supply DS1100SDC-3 740-066938
- Model #: 753525936537
- Item #: 9SIVB8UKA99498
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO XPS 8100 8500 8700 Power Supply HU460AD-01 DPS-460DB-2A ...
- Model #: 744623299938
- Item #: 9SIVB8UKCU6663
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 5070 7070 5080 7060 3050 3650 6Pin 500W Power Supply ...
- Model #: 744623308807
- Item #: 9SIVB8UKD06380
- 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.
