Power Supplies - Showing 2377 - 2400 of 18348 Products
Refurbished: 2100W Power Supply PWR-2KW-DC-V2 DHF-2DC-2100W-V 341-0400-02 ...
- Model #: 753525942040
- Item #: 9SIVB8UKAA5093
- Return Policy: Magicpower Return Policy
Refurbished: PS-5181-8 VS2 180W Desktop Computer Power Supply
- Model #: 722954733611
- Item #: 9SIVB8UKAA5933
- Return Policy: Magicpower Return Policy
Refurbished: For 2U BP3600U2 3600W power supply 3080 3090 8 card graphics card ...
- Model #: 752804578604
- Item #: 9SIVRWKKXB2343
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Contact Uninterruptible Power Supply 2320270 ...
- Model #: 759950240621
- Item #: 9SIVB8UKDA0378
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 360 380 G7 750W Power Supply DPS-750UB B HSTNS-PD22B ...
- Model #: 744623316451
- Item #: 9SIVB8UKD46515
- Return Policy: Magicpower Return Policy
Refurbished: For 14th generation 13th generation 12th generation 500W power supply ...
- Model #: 752804580294
- Item #: 9SIVRWKKXB2552
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for W03100G U1A-Q11200-DRBB AS2150G2 AS5300G2 AS5500 G2 ...
- Model #: 792597704958
- Item #: 9SIVRWKKXD2639
- Return Policy: Nytke team Return Policy
Refurbished: LWT50H-5FF Industrial Control Medical Equipment Power Supply
- Model #: 724780183004
- Item #: 9SIVB8UKA98943
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for R1A-FH0400 U1A-F10400-DRB 400W 1+1 server redundant power ...
- Model #: 792597722785
- Item #: 9SIVRWKKXD8630
- Return Policy: Nytke team Return Policy
Refurbished: SB5800-08A Fiber Switch Power Supply SBPSFAN2FB 31741-06 Power Module
- Model #: 703454717400
- Item #: 9SIVB8UKAJ6138
- Return Policy: Magicpower Return Policy
Refurbished: For 3900 3901 3991 3990 3660 500W Power Supply XE4 XPS8950 12th ...
- Model #: 726727729979
- Item #: 9SIVRWKKXA3181
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 1U 800W Switching Power Supply LL1U800APFC
- Model #: 744623311982
- Item #: 9SIVB8UKD19648
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for STLZ01CFBB 0235G6RF 1800+ 2023 S2200T S2600T
- Model #: 716837083207
- Item #: 9SIVB8UKX57493
- Return Policy: Magicpower Return Policy
Refurbished: For sgi power supply AHW5DC252W REV: 03 ECD13050001
- Model #: 752804577201
- Item #: 9SIVRWKKXB2143
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO HWS100A 12V 8.5A 100W For HWS100A-12 MEA ...
- Model #: 759950247729
- Item #: 9SIVSY0KUV2620
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: CPR-4011-4M1 For Compuware Power Supply 400W
- Model #: 753525934090
- Item #: 9SIVB8UKA99235
- Return Policy: Magicpower Return Policy
Refurbished: R510 R910 Z1100P-00 7001515-J100 Server Power Supply 1100W
- Model #: 722954727153
- Item #: 9SIVB8UKAA7390
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for P720 P520 900W Server Power Supply DPS-900EB A 54Y8979
- Model #: 726099251856
- Item #: 9SIVRWKKXD1621
- Return Policy: Nytke team Return Policy
Refurbished: 2200W Power Supply 876932-001 876933-301 876935-B21 HSTNS-PR64
- Model #: 753525943108
- Item #: 9SIVB8UKAA5253
- Return Policy: Magicpower Return Policy
Refurbished: For SUN SPARC T5220 Server Power Supply 750W A227 300-2232-01 ...
- Model #: 722954725630
- Item #: 9SIVB8UKAA7225
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for L290EM-00 HU290EM-00 H290AM-00 AC290AM-00 Power Supply
- Model #: 792597727988
- Item #: 9SIVB8UKX32942
- Return Policy: Magicpower Return Policy
Refurbished: For 6SL3203-0CD21-4AA0 4kw A5E00417563
- Model #: 726727722550
- Item #: 9SIVRWKKXA2202
- Return Policy: Nytke team Return Policy
Refurbished: 350W Power Supply EFAP-352
- Model #: 753525943542
- Item #: 9SIVB8UKAA5276
- Return Policy: Magicpower Return Policy
Refurbished: New For 48V 50A Power Supply For RM4850 SMR3004D SMR3004ak1 SMR3004A ...
- Model #: 753525991246
- Item #: 9SIVB8UKAA8032
- 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.
