Power Supplies - Showing 2281 - 2304 of 17938 Products
Refurbished: For 5260 7460 All-in-One Power Supply 115W AC155EBA-00 APH002 ...
- Model #: 726727733488
- Item #: 9SIVRWKKXA3831
- Return Policy: Nytke team Return Policy
Refurbished: ML115 G1 G5 365W power supply PS-6361-4HF2 457694-001 460025-001
- Model #: 703454721223
- Item #: 9SIVB8UKAJ6597
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 033K6J SP-PCM02-HE580-AC SC2000 SC4020 580W power supply
- Model #: 792597711093
- Item #: 9SIVRWKKXD4366
- Return Policy: Nytke team Return Policy
Refurbished: P520 P52A 850W Switching Power Supply 7001087-Y000 97P2330 39J4951 ...
- Model #: 753525944396
- Item #: 9SIVB8UKAA5372
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for DZY-48/50HI (TTI) communication power supply
- Model #: 716837095446
- Item #: 9SIVB8UKX62453
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 3020 7020 9020 3620 1700 8Pin 400W Power Supply D400EM-00 ...
- Model #: 744623304878
- Item #: 9SIVB8UKCW6265
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for ATX3500-65PA industrial power supply ATX3000-68PD ...
- Model #: 716837097136
- Item #: 9SIVB8UKX62908
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 300W Power Supply DPSN-300DB-1 E 06HYWF S4810P-PWR-DC-R ...
- Model #: 759950248832
- Item #: 9SIVB8UKDF9556
- Return Policy: Magicpower Return Policy
Refurbished: PSM-15 Communication Power Supply Monitoring Module
- Model #: 722954725333
- Item #: 9SIVT8HKWF2850
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1Pcs for PCH018 PA-1181-7 510S M4000q M420 Chassis Power Supply
- Model #: 716837089971
- Item #: 9SIVB8UKX60595
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FSP250-55SFX FSP200-55SFX Power Supply 250W
- Model #: 792597726219
- Item #: 9SIVRWKKXD9609
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 7908N-R4 (B) Recorder 10 Pin Power Supply SFXA1151A HK250-48PP
- Model #: 716837089179
- Item #: 9SIVB8UKX60318
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for DPS-250AB-44B 250W flex power supply NAS
- Model #: 792597704262
- Item #: 9SIVRWKKXD2515
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for LED power supply NDC200HS5E control module MDK200H4.5A
- Model #: 792597714605
- Item #: 9SIVRWKKXD5847
- Return Policy: Nytke team Return Policy
Refurbished: AIR-PWR-4400-AC 341-0176-03 4400 Series WLAN Controller AC Power ...
- Model #: 753525954401
- Item #: 9SIVB8UKAA0230
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FSP400-60RGVBD FSP420-30RGGBD 420W power supply
- Model #: 716837084792
- Item #: 9SIVB8UKX58103
- Return Policy: Magicpower Return Policy
Refurbished: For SUN L40 L80 Power Supply ST002A400FSW 107903402 GM400W10CCV ...
- Model #: 722954724763
- Item #: 9SIVB8UKAA7127
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply EXQ125-48S05-R 100-24VAC
- Model #: 753525990218
- Item #: 9SIVB8UKAA7815
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO RD650 RD450 350 TS560 450W Switching Power Supply ...
- Model #: 744623303611
- Item #: 9SIVB8UKCW6107
- Return Policy: Magicpower Return Policy
Refurbished: 200 280G1 500 110 180W Power Supply 742317-001 751589-001 ...
- Model #: 753525935578
- Item #: 9SIVB8UKA99378
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For AMU02C
- Model #: 753525988680
- Item #: 9SIVB8UKAA7651
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO RD330 430 530 630 640 DC 800W Power Supply DPS-800AB-5 B ...
- Model #: 744623317533
- Item #: 9SIVB8UKD64656
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for Sun1200W Server Power AWF-2DC-1200W-S
- Model #: 792597984855
- Item #: 9SIVB8UKX57171
- Return Policy: Magicpower Return Policy
Refurbished: PS-5181-02 VG-ROHS TFX Desktop Power PS-5241-02/03
- Model #: 722954733505
- Item #: 9SIVB8UKAA5937
- 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.
