Power Supplies - Showing 2329 - 2352 of 18360 Products
Refurbished: KHACHIMO 280W Switching Power Supply PS-5281-02VA ...
- Model #: 744623312231
- Item #: 9SIVB8UKD19675
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for R4850G6 R4850G2 Communication Power Module 48V50A 3000W
- Model #: 716837094937
- Item #: 9SIVB8UKX62274
- Return Policy: Magicpower Return Policy
Refurbished: PDC-2200WC Switch Power Module 2200W
- Model #: 753525957730
- Item #: 9SIVB8UKAA9037
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for switching power supply POE-U400S53.5 53.5V7.5A
- Model #: 792597984176
- Item #: 9SIVB8UKX57091
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for SS-400ES 400W industrial computer, power supply, dual 8P
- Model #: 792597716593
- Item #: 9SIVRWKKXD6540
- Return Policy: Nytke team Return Policy
Refurbished: PWR-C5-1KWAC C9200 Series Power Supply
- Model #: 753525947168
- Item #: 9SIVB8UKA99859
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 550 405 G2 400G3 300W Power Supply D11-300N1A PCB230 ...
- Model #: 744623302898
- Item #: 9SIVB8UKCW6054
- Return Policy: Magicpower Return Policy
Refurbished: For 1485W DH1485E SC3020 SC7020 SC5020 Power Supply MXCJ5
- Model #: 726099253829
- Item #: 9SIVRWKKXD1969
- Return Policy: Nytke team Return Policy
Refurbished: For Power Supply CA05951-8730
- Model #: 726727816648
- Item #: 9SIVRWKKXB0816
- Return Policy: Nytke team Return Policy
Refurbished: For Power8 S824 00RR363 00RR365 7001691-J002 900W Power Supply
- Model #: 726727817782
- Item #: 9SIVRWKKXB1165
- Return Policy: Nytke team Return Policy
Refurbished: for DPS-800AB-1 A S26113-E574-V53 800W
- Model #: 753525956603
- Item #: 9SIVB8UKAA8886
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 600W extreme 10913 EPS-600LS 130348-00 power supply
- Model #: 792597710959
- Item #: 9SIVRWKKXD4388
- Return Policy: Nytke team Return Policy
Refurbished: For H3C PSR450-12A S6520X/S6800 Switch 450w AC Power Supply
- Model #: 722954732003
- Item #: 9SIVSY0KUT7037
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1pcs for ACDB220-63-12B
- Model #: 716837094524
- Item #: 9SIVB8UKX62253
- Return Policy: Magicpower Return Policy
Refurbished: PSB250Q-J3 For CWT 250W Switching Power Supply
- Model #: 753525954265
- Item #: 9SIVB8UKAA0219
- Return Policy: Magicpower Return Policy
Refurbished: New Switching Power Supply MEGMEET 4.5V50A 260W Switching Power Supply ...
- Model #: 722954989018
- Item #: 9SIVB8UKAJ5591
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 0F308V DPS-1100CB-2A power supply N3024P/N3048P
- Model #: 792597708215
- Item #: 9SIVRWKKXD3825
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for RG-PA800I-F RG-S6510 Switch Power Supply CSU800AP-3-300
- Model #: 716837084396
- Item #: 9SIVB8UKX58095
- Return Policy: Magicpower Return Policy
Refurbished: DL160G5 Server Power 650W DPS-650MB A 457626-001 446635-001
- Model #: 722954734755
- Item #: 9SIVB8UKAA6046
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 1u power supply ACE-A618A-RS-R11
- Model #: 792597714407
- Item #: 9SIVRWKKXD5866
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for SPS5871 CRS-16-DC-PEM-B CRS DC Power Module 341-0331-03
- Model #: 792597708468
- Item #: 9SIVRWKKXD3847
- Return Policy: Nytke team Return Policy
Refurbished: For SUN Netra 240/440 Mini DC Power Supply 300-1567 300-1845
- Model #: 722954724633
- Item #: 9SIVB8UKAA7123
- Return Policy: Magicpower Return Policy
Refurbished: For P1S-5220V FSP250-60PLC FSP400-60UAP FSP200-60PLC Power Supply
- Model #: 726727820140
- Item #: 9SIVRWKKXB1436
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for LED driver power supply EUV-200S042ST-FT01, 200W 42VDC
- Model #: 792597721986
- Item #: 9SIVRWKKXD8166
- Return Policy: Nytke team 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.
