Disk Drives DL380 G4 redundant PSU DL380 G4 redundant PSU rackmountable disk drive. Prerequisite: Any SDI controller and a cabinet for mounting. DL380 G4 redundant PSU -AA/AD RA81 AA/AD with KDA50 controller. - DL380 G4 redundant PSU disk drive mounted in a H9642 AP/AR cabinet. - Prerequisite: Any SDI controller. DL380 G4 redundant PSU -CA/CD RA81-CA/CD with KDA50 controller. RA81-EA/ED Three RA81 disk drives mounted in a 3 HI cabinet. - Prerequisite: Any SDI controller. RA81-FA/FD One RA81 disk drive with a 4 HI cabinet. - Prerequisite: Any SDI controller. DL380 G4 redundant PSU-HA/HD RA81 rackmountable disk drive without cable. Primarily used an MicroPDP 11/83 system building blocks. - Prerequisite: Any SDI controller and a cabinet for mounting and appropriate BC26V-XX cable. DL380 G4 redundant PSU JA/JD - Four RA81 disk drives mounted in a 4-HI cabinet. Prerequisite: Any SDI controller. DL380 G4 redundant PSU-UA RA81 reconfiguration kit. Required for remounting RA81s originally configured in 3 HI H9642 cabinet. Not required for - RA81-AA. Additional Controllers DL380 G4 redundant PSU A - DSA UNIBUS controller for 1-4 SDI drives. DL380 G4 redundant PSU DSA Q-bus disk controller for 1-4 SDI drives. Prerequisite: UNIBUS or Q bus system and 1 4 SDI drives - -