Epson MR Series Technical Reference Manual page 28

Cable B (without a touch panel and an MSR)
Cable C (with a touch panel, without an MSR)
.
AC Adapter (OI-MR01)
* Applies only to models with a touch panel.
** Applies only to models with an MSR.
1-8 Features and Overview
DC plug
Power LED
AC inlet
Display
connector
DC plug
Serial port
connector
DC plug
Display
connecter
Rev. I