Tested: works! Comes with provenance see YouTube video!
Comes in three boxes: One has the monitor, second has the computer with software, cables and manuals, and the third has the keyboard.
The Epson QX-10 is a microcomputer running CP/M or TPM-III (CP/M-80 compatible) which was introduced in 1983. It was based on a Zilog Z80 microprocessor, running at 4 MHz, provided up to 256 KB of RAM organized in four switchable banks, and included a separate graphics processor chip (µPD7220) manufactured by NEC to provide advanced graphics capabilities.
The machine had internal extension slots, which could be used for extra serial ports, network cards or third party extensions