A:Answer The motherboard is an HP Moria 3. Despite what HP support says in their other answers, there is only space for one SSD. The first thing I did was clone the 256 GD drive and replace with a Sabrent 1 TB SSD. The 256 GD drive that was included was a Western Digital drive. I am unsure what speed it would is, I thought all SSD's are the same read/write speed. I believe the 1TB storage drive was a Western Digital as well, but I swapped that out for two 4TB drive as well.
All cooling is by case fans, no liquid cooling is included.
Mouse is a standard HP optical mouse, no frills there. I am still using an 8 button gaming mouse I bought a couple years ago, so I didn't even open the bag for it.
Other than the upgrades storage space that I felt were necessary, I am otherwise pleased with the PC so far.