The PEGATRON IPSHB-AT (HP Altis-U) Motherboard is used in the HP AIO 20-R & HP AIO 23-R Models. There is a bunch of these motherboards for sale on Ebay, a really the only proper way to install these is into one of the AIO casing as Motherboards HP Nano AIX15 isn't ATX compliant. Drivers are for Windows 10. 16 GB of RAM can be used with the installation of the 64bit version of Windows 10.