Hi ,thinking of buying this
A604 Memory Expansion for the Amiga 600
Features
Expand your A600 to 2MB chip memory

Real-time clock with
optional coin battery
Dual 22-pin clockport header for adding selected clockport expansions to your A600

Expansion port for the new
Indivision ECS scandoubler/flickerfixer

Fits into trapdoor (under side of Amiga 600). Printed instructions included.
What does the clockport expansion 22pin header allow me to attach exactly,can any where on this unit could i run a cd player ,sorry about all the questions ,Brian
ps its not in stock at Amigakit yet