The DTU-7004-1 is a 19-inch rack-mounted data transfer unit that supports up to four RMM-700X(C)-1 media cartridges. Recorded data on an RMM-700X(C)-1 cartridge in an nREC-7000-1 is recovered by placing the cartridge in the DTU-7004-1 and downloading the data using a Thunderbolt 3 interface.