Got these drives with a F2 lot I bought. Have sold most of the lot.  Can't verify the reliability of these units so this is why they are being sold for parts as is.  The listing is for both drives.  The battery compartments are clear of battery leakage and corrosion.  All latches, switches and dials seem to work as intended. I just don't see how to attach them to the remaining cameras I have. If you know how to operate or repair if necessary...then this is a deal.  

Thanks for Looking