connects to the 68000's socket, the 68000 is replaced onto the board
44 pin IDE header for connecting an internal 2.5" hard disk drive
autoboot ROM - autobooting requires at least Kickstart 1.3
autoboot disable jumper
hard disk activity LED connector
feature connector for the optional memory expansion
disable switch
RDB compatible
notes
fits into the CDTV without problems
autobooting is problematic with the CDTV - either a boot floppy has to be used (which a bare CDTV lacks), or after a reset by selecting the hard disk in the Early Startup Menu (which require at least Kickstart 2.0)
it's also possible to enable autoboot by disabling the CD-ROM drive, which is done by removing jumper 15 (this generally disables the CDTV boot EPROMs)