Power Supplies - Showing 1921 - 1944 of 17942 Products
Refurbished: 1PCS for DPS-800NB D S26113-E574-V52 Server Power Supply 800W
- Model #: 731029999975
- Item #: 9SIVRWKKXD1329
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for FSP400-70MP 400W ATX server IPC power supply
- Model #: 731029999784
- Item #: 9SIVRWKKXD1327
- Return Policy: Nytke team Return Policy
Refurbished: 500W Power Supply PS-4501-2 L84091-001
- Model #: 753525937336
- Item #: 9SIVSYTKUT4148
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: For Z440 700W Power Supply 719795-004 858854-001 DPS-700AB
- Model #: 752804574675
- Item #: 9SIVRWKKXB1873
- Return Policy: Nytke team Return Policy
Refurbished: For R750S T650 R550 R7525 Power Supply D1100D-S0 WPJC6 K3KJC
- Model #: 726099253409
- Item #: 9SIVRWKKXD1959
- Return Policy: Nytke team Return Policy
Refurbished: For PSL125-A 12.2V10.25A switching power module
- Model #: 752804576846
- Item #: 9SIVRWKKXB2139
- Return Policy: Nytke team Return Policy
Refurbished: PowerEdge 6850 1470W Power Supply SP574 SP574-Y01A PS-2142-1D DU764 ...
- Model #: 753525941333
- Item #: 9SIVB8UKAA4964
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs power supply for XR11 XR12 XR4000R XR4000Z 4F3WN C6T8M VKY5X
- Model #: 716837093251
- Item #: 9SIVB8UKX61683
- Return Policy: Magicpower Return Policy
Refurbished: DS1200-3 DS1200-3-002 1200W Server Power Supply
- Model #: 703454720677
- Item #: 9SIVB8UKAJ6529
- Return Policy: Magicpower Return Policy
Refurbished: Power Abelcom PWS-801-1R 800W x2 Redundant Power Supply (1+1)
- Model #: 722954988240
- Item #: 9SIVB8UKAA6532
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for MP400-24 24V Power Board
- Model #: 792597704385
- Item #: 9SIVRWKKXD2519
- Return Policy: Nytke team Return Policy
Refurbished: M6412A 4G Fiber Controller AG638-60410 AG638-04500 461494-005
- Model #: 722954736414
- Item #: 9SIVB8UKAA6261
- Return Policy: Magicpower Return Policy
Refurbished: Nexus7000 3000W Power Supply N7K-AC-3KW 700-010646-0000 ...
- Model #: 703454716205
- Item #: 9SIVB8UKAJ6046
- Return Policy: Magicpower Return Policy
Refurbished: PJA600F-24 600W INPUT AC100-240V 50-60Hz 7.5A OUTPUT 24V 25A ...
- Model #: 753525948868
- Item #: 9SIVB8UKAA0050
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 200 220 560 580 530 240W Power Supply HK340-71FP PS-5241-04 ...
- Model #: 744623301921
- Item #: 9SIVB8UKCV8196
- Return Policy: Magicpower Return Policy
Refurbished: Communication Power Supply GEPS4845F-15220EP
- Model #: 703454717851
- Item #: 9SIVB8UKAJ6230
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply 400W Switching Power Supply P2H-5400V
- Model #: 744623303987
- Item #: 9SIVB8UKCW6160
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for S7700/S9700 switch 2200W AC power module W2PSA2230
- Model #: 792597720552
- Item #: 9SIVRWKKXD7848
- Return Policy: Nytke team Return Policy
Refurbished: Server Power Supply FSP100-1E02 (PSC100-A)
- Model #: 722954726408
- Item #: 9SIVB8UKAA7289
- Return Policy: Magicpower Return Policy
Refurbished: For MD1200 MD3200 Server Power Supply 600W 06N7YJ JD7W3 H600E-S0
- Model #: 726727816761
- Item #: 9SIVRWKKXB0820
- Return Policy: Nytke team Return Policy
Refurbished: SPIII-2003-PB Computer Host Desktop Power Supply 200W
- Model #: 722954727146
- Item #: 9SIVSY0KUR7858
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: KHACHIMO G8 1200W Switching Power Supply HSTNS-PL30 643933-001 ...
- Model #: 744623316468
- Item #: 9SIVB8UKD46519
- Return Policy: Magicpower Return Policy
Refurbished: Server Pro G5500 Server Power Supply MC2200B4-3-5R-02 2200W
- Model #: 722954729379
- Item #: 9SIVB8UKAA5524
- Return Policy: Magicpower Return Policy
Refurbished: 7989 P510 P51A P510Q 700W Power Supply 7000967-Y000 39J4710 97P5834 ...
- Model #: 753525943016
- Item #: 9SIVB8UKAA5267
- 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.
