This device runs an operating system which is known to emulate various devices with EOPs. See the DOS and MSX pages.

Within the listed videos are some good quotes, outlining the lightweight RAM, expansion slots, difficulty in accessing the underlying DOS install, info about Linux and other such supported OSes. Still available to purchase as new, also.

https://chef-tab.com/products/ipadsx

https://www.youtube.com/watch?v=BdSJgoP2a88

https://www.youtube.com/watch?v=8fSdLKx5HlU

http://app.selectelectronics.com/downloads/SEC%20Product%20Manual.pdf