The 300W Power Supply

Due to the compact and unique design, a normal ATX power supply won't fit. In Win has included a very small 300W unit instead. This may not sound like a lot, but should be more than sufficient for any home theater PC setup. I have placed the unit on top of a standard ATX PSU, to give you an idea about the overall size.


A 60 mm fan cools the power supply during operation. Considering the overall weight of the unit as a hint for quality, this unit seems to be of high-quality. While this may not be a scientific way to judge a power supply, the weight comes from large cooling fins and many components inside the unit. In fact the In Win PSU is heavier than the depicted larger brother. The specifications of the unit further underline the quality. It is rated for a 300W output, not input. Many cheap OEM PSUs are labeled according to their maximum input instead. Another great feature are the dual rails with 16A each. I have not seen any other 300W unit with two rails. The 80 Plus sticker should clear out any remaining doubts about the unit. In Win has chosen an excellent unit for the Matrix chassis.


We usually give you a little graph here about the length of the cables, but considering that this is not a standard PSU and there are very few cables, I have taken images instead. As you can see each cable has a SATA and Molex power connector, while one also has a small floppy power plug as well. This may not seem like much, but is more than enough to power everything in the chassis, even if you fill all the drive bays. Considering the power of the PSU, you may be inclinded to stuff a sperate graphic card inside the case. You will be forced to use adapters and splitters in such a scenario.