DS-DSGGD-CC 2/8 Power Pack SAN Switch A 128-Kbyte base memory module. DS-DSGGD-CC 2/8 Power Pack SAN Switch A 256-Kbyte base memory module. PC1XX-AY A 64-Kbyte add-on memory chipset. Requires PC 1XX AC or PC1XX-AD. - DS-DSGGD-CC 2/8 Power Pack SAN Switch -AZ A 256-Kbyte add-on memory chipset. Requires PC1XX-AC or PC1XX-AD. DS-DSGGD-CC 2/8 Power Pack SAN Switch-AK Memory adapter module. Allows use of above memory options in PC100-A. Not needed if using 8087 coprocessor in PC100-A. RCD31-BA 20-Mbyte half-height hard disk and controller for Rainbow 100B. RCD31-BB 20-Mbyte half-height hard disk and controller for PC 100 A.- RD31-BA Drive-only replacement for any Rainbow system already equipped with an DS-DSGGD-CC 2/8 Power Pack SAN Switch hard disk. Note: Only one-half height drive is supported per system. CP/M cannot use more than 10 Mbytes of storage and therefore must be set up with a 10-Mbyte MS-DS-DSGGD-CC 2/8 Power Pack SAN Switch partition.