My last email was unclear...I have a few RK06 Data Cartridges and an Alignment Cart Available. Contact me privately if you have an RK06 drive and you're looking for carts. They look like RL02's maybe a hair thinner. I paid a small amt, and I am looking to be reimbursed for the cost. I have no RK06 drive. RK06 cartridges are NOT compatible with RK07's according to the manual. If you're in the Landenberg, PA area stop by, At some point I will publish a list of other DEC items I have in clean organized storage. Bill