Power Supplies - Showing 2377 - 2400 of 18220 Products
Refurbished: 450W Power Supply FSP450-20PGBAG HK340-71FP PC9059 H250AD-00 ...
- Model #: 753525942422
- Item #: 9SIVB8UKAA5142
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 800W Switching Power Supply LL1U800APFC
- Model #: 744623311777
- Item #: 9SIVB8UKD19662
- Return Policy: Magicpower Return Policy
Refurbished: PSU For ADVANTECH IPC 300W Switching Power Supply DPS-300AB-47 F ...
- Model #: 753525936759
- Item #: 9SIVB8UKA99492
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO For FSP 520W Switching Power Supply SPR1C520
- Model #: 744623315645
- Item #: 9SIVB8UKD46438
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply High Quality Fast Ship
- Model #: 753525947069
- Item #: 9SIVSY0KUS0325
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1Pcs for EOE12030002 380-1571-01 454342-001 Tape Library Power Supply
- Model #: 716837084686
- Item #: 9SIVB8UKX58064
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For NETAPP E2700 725W Switching Power Supply ...
- Model #: 744623298764
- Item #: 9SIVB8UKCU6484
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for DPS-550AB-42 640-107107 Power switch power supply
- Model #: 792597704453
- Item #: 9SIVRWKKXD2532
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 620 755 945 320 3100 235W Power Supply H235PD-00 H235PD-01 ...
- Model #: 744623312330
- Item #: 9SIVB8UKD19574
- Return Policy: Magicpower Return Policy
Refurbished: For SWS600L-24 DC Power Supply 600W 24V Output
- Model #: 752804578475
- Item #: 9SIVRWKKXB2339
- Return Policy: Nytke team Return Policy
Refurbished: PS-2551-9L 550W Original Server Power Supply V03101F000000000 ...
- Model #: 753525986921
- Item #: 9SIVB8UKAA8703
- 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: For 24744-06 NETAPP LSI E7900 TDPS-525AB A Power Supply 525W ...
- Model #: 726727815597
- Item #: 9SIVRWKKXB0202
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO -5V DC24V 250W Switching Power Supply YKD-6250DC24
- Model #: 744623305790
- Item #: 9SIVB8UKD01926
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for MSP300- 4.6/4 300W display 4.2V/4.6V60ALED power supply
- Model #: 792597724208
- Item #: 9SIVRWKKXD9095
- Return Policy: Nytke team Return Policy
Refurbished: For GW-CRPS800N2 Server Power Supply 800W 240V 1pcs
- Model #: 726727817157
- Item #: 9SIVRWKKXB0976
- Return Policy: Nytke team Return Policy
Refurbished: PC PSU For FSP 600W 750W Power Supply FSP600-40MRA(M) YM-2751E
- Model #: 753525935882
- Item #: 9SIVB8UKA99401
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO DL160G6 DL165G6 500W Power Supply HSTNS-PF01 506077-001 ...
- Model #: 726099221439
- Item #: 9SIVB8UKCU6124
- Return Policy: Magicpower Return Policy
Refurbished: ST-300WHT 300W AT Industrial Computer Power Supply ST-230WHF
- Model #: 722954721984
- Item #: 9SIVB8UKAA6865
- Return Policy: Magicpower Return Policy
Refurbished: TRIO-PS/1AC/12DC/10-2866488 2866488
- Model #: 753525949735
- Item #: 9SIVB8UKAA0168
- Return Policy: Magicpower Return Policy
Refurbished: New Switching Power Supply Board For DELTA DCS-3950 12V2.5A 30W Adapter ...
- Model #: 722954989117
- Item #: 9SIVB8UKAJ5580
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs For R4815N1 R4815N Communication Power Supply
- Model #: 716837098652
- Item #: 9SIVB8UKZ24999
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO For FSP 1U CPU8P*2 500W Switching Power Supply FSP500-601UE
- Model #: 744623311128
- Item #: 9SIVB8UKD12166
- Return Policy: Magicpower Return Policy
Refurbished: 470W Power Supply PCSA-470P-X2S PCSA-470P-E2J1
- Model #: 753525941814
- Item #: 9SIVB8UKAA5004
- 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.
