Power Supplies - Showing 2329 - 2352 of 17941 Products
Refurbished: DD102M380-1M2 Communication Power Supply
- Model #: 753525984309
- Item #: 9SIVB8UKAA9065
- Return Policy: Magicpower Return Policy
Refurbished: For Power Supply CLW300-24-L 2412.5A 12V 25A 300W
- Model #: 753525992021
- Item #: 9SIVB8UKAA8240
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs power supply for AD301M12-1M1
- Model #: 716837090854
- Item #: 9SIVB8UKX60828
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for PSR1200-12A 0231A8KP 9PA12A1501 Server Power 1200W
- Model #: 792597724819
- Item #: 9SIVRWKKXD9212
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO CRPS 500W Switching Power Supply DPS-500WB-1 A ...
- Model #: 744623302799
- Item #: 9SIVB8UKCV8275
- Return Policy: Magicpower Return Policy
Refurbished: For 400W Industrial Computer Desktop Computer 500W
- Model #: 722954732560
- Item #: 9SIVSY0KUS2393
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1PCS for 7040 5040 3650sff small chassis host AC240EM-00 B240AM-01 power ...
- Model #: 792597706020
- Item #: 9SIVRWKKXD2918
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for PWS-721P-1R Server Redundant Power Supply 720W
- Model #: 716837090663
- Item #: 9SIVB8UKX60850
- Return Policy: Magicpower Return Policy
Refurbished: S8FS-G01515C AC/DC CONVERTER 15V 15W Switching Power Supply
- Model #: 753525948592
- Item #: 9SIVB8UKAA0036
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for W480 Power Supply DPS-500QB A S26113-E538-V50-02
- Model #: 792597985951
- Item #: 9SIVB8UKX57370
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 80plus Platinum Quanta D51PC-1U D52T-1U 700W Switching ...
- Model #: 744623308616
- Item #: 9SIVB8UKD06399
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for HWS1500-36/BT switching power supply 100-240V
- Model #: 792597715312
- Item #: 9SIVRWKKXD6262
- Return Policy: Nytke team Return Policy
Refurbished: MSA2000 YM-2751B CP-1391R2 481320-001 712.8W
- Model #: 753525987478
- Item #: 9SIVB8UKAA8726
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO H3050 M4500 M92P M82 M78 M73 M93 E73 M83 M91 M4550 TFX ...
- Model #: 745635675024
- Item #: 9SIVB8UKDA0203
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for SMU02B SMU02B1 SMU02C switching power supply monitoring
- Model #: 716837093374
- Item #: 9SIVB8UKX61681
- Return Policy: Magicpower Return Policy
Refurbished: For PSR300-12A PSR300-12A2H Power Supply PSR300-12A1 LSWM5AC300 ...
- Model #: 752804574354
- Item #: 9SIVRWKKXB1841
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for 02JH721 DH2000 DH4000 912W power supply
- Model #: 792597708864
- Item #: 9SIVRWKKXD3836
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO POWER/TYCO 5V2A 10W Power Supply LC010A
- Model #: 759950242465
- Item #: 9SIVB8UKDA8848
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for F5 8950/6900 FNP850-S151G PWR-0148
- Model #: 792597710317
- Item #: 9SIVRWKKXD4266
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for C240 M4 Power Supply DPST-1400AB A UCSC-PSU2-1400W ...
- Model #: 716837097358
- Item #: 9SIVB8UKX62950
- Return Policy: Magicpower Return Policy
Refurbished: For DPS-750AB-30 B server power supply 800W
- Model #: 726727817836
- Item #: 9SIVRWKKXB1195
- Return Policy: Nytke team Return Policy
Refurbished: For MXJ96 DCJ17001-01P PWR-MX960-AC
- Model #: 722954722981
- Item #: 9SIVB8UKAA6961
- Return Policy: Magicpower Return Policy
Refurbished: For 24V 60A Power Supply For SMPS1002H-l SMPS1002H-1
- Model #: 753525990690
- Item #: 9SIVB8UKAA7911
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For FSP 1U 250W Switching Power Supply FSP250-60WS1
- Model #: 744623313825
- Item #: 9SIVB8UKD21786
- 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.
