"盒式数据存储器" can be translated as "cartridge data storage device" or simply "cartridge data storage" in English, depending on the specific context and level of detail required.
"Cartridge" refers to the physical container or housing that holds the data storage medium (such as a magnetic tape, flash memory, etc.).
"Data storage device" or "data storage" clearly indicates the function of storing data.
In some cases, if the context is clear and the term is being used in a technical or specialized field, a more specific or abbreviated form might be acceptable, but "cartridge data storage device" provides a clear and unambiguous translation.