This is an OEM board, not a retail one. It uses non-standard power connectors and a custom form factor.
You want to overclock, need modern I/O (USB-C/3.2), or hate tinkering with non-standard parts. acer ironman-sk motherboard specs
For a laptop of its era, having both a 2.5-inch SATA drive bay and a dedicated M.2 slot is fantastic. It allows users to run a fast SSD for the operating system while keeping a massive, cheap hard drive for bulk storage. Decent RAM Ceiling: This is an OEM board, not a retail one
Note : Some sub-variants may have 4GB or 8GB of soldered "onboard" memory plus one open slot. This is an OEM board