Power Supplies - Showing 2161 - 2184 of 17947 Products
Refurbished: 800W Switching Power Supply PWS-804P-1R
- Model #: 753525944280
- Item #: 9SIVSYTKUS9813
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: GEN9 735040-001 735051-401 754382-001 720480-B21 HSTNS-PF46 800W
- Model #: 724780181406
- Item #: 9SIVB8UKA98792
- Return Policy: Magicpower Return Policy
Refurbished: Waterproof Power Supply For EUM-200S105DG 200W
- Model #: 753525990706
- Item #: 9SIVB8UKAA7915
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for server power supply 520W PWS-521-1H
- Model #: 792597984626
- Item #: 9SIVB8UKX57175
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 750W server power supply PS-2751-1F-LF PS-2751-2F-LF
- Model #: 792597706754
- Item #: 9SIVRWKKXD3442
- Return Policy: Nytke team Return Policy
Refurbished: For FSP700-50AUE FSP750-50ABA FSP600-50AUE FSP500-50AUE Power ...
- Model #: 726727820621
- Item #: 9SIVRWKKXB1447
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for DPS-250AB-89L power supply 96PS-A250WFXB
- Model #: 716837096917
- Item #: 9SIVB8UKX62823
- Return Policy: Magicpower Return Policy
Refurbished: 150W LED Control Device Street Light Drive Power Supply 96-214V0.7A
- Model #: 722954721649
- Item #: 9SIVB8UKAA6823
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for W5010/Ln Medical Power Supply DPS-600AB-11 A ...
- Model #: 792597985319
- Item #: 9SIVB8UKX57261
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for communication power supply R24-2200 24V/75A 220 to 48 power ...
- Model #: 792597717637
- Item #: 9SIVRWKKXD6889
- Return Policy: Nytke team Return Policy
Refurbished: SP-480-12 12V 40A 480W For MW Switching Power Supply
- Model #: 724780182601
- Item #: 9SIVB8UKA98930
- Return Policy: Magicpower Return Policy
Refurbished: For 3Y redundant power supply 420W YM-7421F CP-1356R2
- Model #: 703454723036
- Item #: 9SIVB8UKAJ6785
- Return Policy: Magicpower Return Policy
Refurbished: Switching Power Supply S8FS-C20048 For 200W 48V AC100240V
- Model #: 753525990461
- Item #: 9SIVB8UKAA7917
- Return Policy: Magicpower Return Policy
Refurbished: ML350G6 511776-001 461318-001 591675-001 Power Backplane
- Model #: 722954730580
- Item #: 9SIVB8UKAA5663
- Return Policy: Magicpower Return Policy
Refurbished: For LSUM1AC2500 Power Module H3C S10504 S10508 S10512 Switch
- Model #: 722954721274
- Item #: 9SIVTFFKXZ7536
- Return Policy: Zienroylein Return Policy
Refurbished: KHACHIMO CWA2-1000-10-TY01 1U 1000W CPSU-0240 power module
- Model #: 745635673631
- Item #: 9SIVB8UKD64799
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for CRPSHD550D2 280V server power supply 550W
- Model #: 716837084235
- Item #: 9SIVB8UKX57706
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply for U1A-Q11200-DRBB 1200W Work Good
- Model #: 703454924969
- Item #: 9SIVB8UKA98701
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 250W power supply with -5V power supply FSP250-70PFU 610L 610H ...
- Model #: 792597705351
- Item #: 9SIVRWKKXD2737
- Return Policy: Nytke team Return Policy
Refurbished: 15000W 270V 55A Power Supply Module For R240-15K
- Model #: 753525990768
- Item #: 9SIVB8UKAA7938
- Return Policy: Magicpower Return Policy
Refurbished: New Power Supply 5V60A 300W Power Supply CLW300-5-L
- Model #: 722954989193
- Item #: 9SIVB8UKAJ5565
- Return Policy: Magicpower Return Policy
Refurbished: For C2100 Server Power Supply PS-2751-5Q 750W 12V 60A
- Model #: 726727821598
- Item #: 9SIVRWKKXB1584
- Return Policy: Nytke team 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: 60V6.7A 400W Power Supply CL-A1-400-60
- Model #: 703454715239
- Item #: 9SIVB8UKAJ5906
- 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.
