Epson Endeavor 468C - Manual (Page 27)

4
Connecting the Keyboard
To connect the keyboard, hold the cable connector so the arrow
on the connector faces up. Insert it into the port marked K/B, as
shown below.
Caution
Although the connectors and ports for the keyboard and
mouse are physically identical, they cannot be used
interchangeably. Be sure to plug the keyboard connector into
the keyboard (K/B) port or you could damage your system.
1-8
Setting Up Your System