Power Supplies - Showing 1921 - 1944 of 17939 Products
Refurbished: PJA600F-24 600W Switching Power Supply Input AC100-240V 50-60Hz 7.5A ...
- Model #: 724780183264
- Item #: 9SIVB8UKA98953
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for FSP180-50PLA cash register POS machine power supply 1U
- Model #: 792597704224
- Item #: 9SIVRWKKXD2509
- Return Policy: Nytke team Return Policy
Refurbished: R230 Server Power Supply D250E-S0 AC250E-S0 9J6JG P59VM 250W
- Model #: 726727734041
- Item #: 9SIVRWKKXA3833
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for P2G-6460P 2u power supply
- Model #: 716837092476
- Item #: 9SIVB8UKX61391
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Poweredge R430 R330 Power Supply 04HPKX 4HPKX
- Model #: 759950244582
- Item #: 9SIVB8UKDA9194
- Return Policy: Magicpower Return Policy
Refurbished: For 4U Redundant Power Supply FSP350-60MRB (S) FSP500-60MRB (S) ...
- Model #: 726727819205
- Item #: 9SIVRWKKXB1314
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for HK400-74PP FSP300-10TGBAA6 pin small chassis power supply PA- ...
- Model #: 716837096344
- Item #: 9SIVB8UKX62731
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 24 pins GW-T200SHA TFX02-200W TK630-v050
- Model #: 716837089407
- Item #: 9SIVB8UKX60315
- Return Policy: Magicpower Return Policy
Refurbished: For FSP1400-50DRS/20DRM/FSP1200-20ERM/96PSRM-A550WCRP
- Model #: 703454721353
- Item #: 9SIVB8UKAJ6599
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For P38995-B21 P39385-001 HPE 800W FS PLAT HT PLG
- Model #: 726099253089
- Item #: 9SIVRWKKXD1862
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO H3C MSR3600 3660 3640 5600 300W Switching Power Supply ...
- Model #: 744623314761
- Item #: 9SIVSY0KUU0241
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: CSU520Y Communication Power Monitoring Module
- Model #: 753525987195
- Item #: 9SIVT8HKWF3072
- Return Policy: YunYunKeJiShiZhuangDian 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: X306 300W Switching Power Supply API3FS26 26K4106 23K4874
- Model #: 753525943467
- Item #: 9SIVB8UKAA5290
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for DPS-230LB A PB pc7041 PC7066 Fujitsu API4PC49 DPS-250AB-19
- Model #: 792597716746
- Item #: 9SIVRWKKXD6580
- Return Policy: Nytke team Return Policy
Refurbished: For 341-0441-01 UCSB-PSU-2500ACPL AHF-2DC-2500W-PE Power Supply ...
- Model #: 726727776065
- Item #: 9SIVRWKKXA5049
- Return Policy: Nytke team Return Policy
Refurbished: 2130W Power Supply H66158-011 PSSF222201A H66158-010 H66158-009
- Model #: 753525934847
- Item #: 9SIVSY0KUU5208
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: Industrial SS-500L1U Power Supply
- Model #: 703454718896
- Item #: 9SIVB8UKAJ6308
- Return Policy: Magicpower Return Policy
Refurbished: For MSL LTO-5 3000 SAS BL540A 603881-001
- Model #: 726727816945
- Item #: 9SIVRWKKXB0651
- Return Policy: Nytke team Return Policy
Refurbished: For PMP120-13-2 FSP120-1ADE11 FSP350-60GNV FSP360-20UCBB Power ...
- Model #: 726727819687
- Item #: 9SIVRWKKXB1405
- Return Policy: Nytke team Return Policy
Refurbished: Communication Power Module PAC-2200WA
- Model #: 722954723421
- Item #: 9SIVT8HKWF3062
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: Communication Power Module PWR150D
- Model #: 703454718018
- Item #: 9SIVB8UKAJ6234
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For FSP 200W Power Supply FSP200-50SHNCA
- Model #: 744623317588
- Item #: 9SIVB8UKD64625
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 200W Switching Power Supply UPF200-AA
- Model #: 744623315782
- Item #: 9SIVB8UKD46444
- 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.
