
Power Supplies
Rosewill's line of Power Supplies offer a wide range of options for building or improving your gaming PC.

PMG850 850 Watt Power Supply
Fully Modular Design
Allows for better cable management to create a neat computer case. Reduce dust build-up and improve airflow by using only the cables your build requires.
80 Plus Gold Certified
Delivers 90% or more efficiency under typical load conditions. Prevents the waste of power and unnecessary additional heat.
ATX Compatibility
ATX 12V V2.3 ready, Crossfire ready, and SLI ready. Supports EPS 12V 2.92 and is also backward-compatible with ATX 12V 2.01.
Highlights:
- Active Power Factor Correction
- Over Voltage Protection
- Over Current Protection
- Short Circuit Protection
- Over Power Protection
- Over Temperature Protection

Ultra Quiet Fan
135mm fan designed to produce low noise while expanding your the lifespan of your power supply.

Maximum Protection
Power Supply features various protections, including Over-Voltage, Short-circuit, Over-Current, Over-Temperature, and Over-Power Protections.

Connectors Included
Includes various connectors, including 20+4 Motherboard PIN, 4+4 CPU PIN, 6+2 PIN PCI-E, SATA, 4 PIN Molex, and 4 PIN Floppy.
![]() PMG550 |
![]() PMG650 |
![]() PMG750 |
![]() This Item |
![]() PMG1050 |
![]() PMG1200 |
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20+4 Motherboard PIN Connector | 1 | 1 | 1 | 1 | 1 | 1 |
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4+4 CPU PIN Connector | 1 | 1 | 1 | 2 | 2 | 2 |
6+2 PIN PCI-E Connector | 2 | 4 | 4 | 4 | 8 | 8 |
SATA Connector | 6 | 8 | 8 | 6 | 8 | 8 |
4 PIN Molex Connector | 3 | 4 | 4 | 3 | 3 | 3 |
4 PIN Floppy Connector | 1 | 1 | 1 | 1 | 1 | 1 |

About Rosewill
Rosewill Inc. was established in 2004, as a go-to resource for PC components and accessories. Over time, it has expanded its product line to include consumer electronics, home appliances, and more. For nearly two decades, Rosewill has remained dedicated to providing its customers with high-quality, reliable products to help accomplish everyday tasks.
Pros: Modual as in my opinion every decent power supply should be, main 20+4pin atx power is sleeved and also modular. Quiet, very efficient, 62.5amps on 12v rail, arrived with 5x 6" zipties, required screws, ac cable, and a simple short installation folded page. -- No waste here, no badges, no stickers, no excess marketing material. The cables are long enough to reach all your components in most cases and to my surprise included a floppy power connector! 5 year warranty is always nice.
Cons: Only the primary ATX cable is sleeved, this is common for almost all power supplies and a fair disappointment. The cables will be too short to reach in larger cases and especially if you are the type who wants to tuck your cables away. Capacitors are of moderate quality, Teapo. 135mm fan is a non standard size which makes replacement should it fail more difficult.
Overall Review: While I'm somewhat impressed by this power supply I might make the small price jump to a premium brand. I installed this into a machine that is powered on 24 hours a day and draws a fairly steady 290w from the wall, we will see how long it holds up, it may surprise me but I fear with the capacitors it may not last long out of warranty. In fairness this is approximately 40k hours of use which far exceeds the average use hours in a 5 year period. Further note, Rosewill parts have continued to get better over the years, they've earned a respectable name in the industry.. I'm not sure who manufactures this unit but I've certainly seen far worse.