To fill this freezer you would need…
Maximum Rack Capacity per Freezer: 16 racks for Microtube boxes
Maximum Microtube Boxes per Rack: 25 boxes
Maximum Microtubes Boxes per Freezer: 400 boxes
Internal Dimensions: 23″W X 51.5″H X 19.3″L 58.4 X 130.8 X 49CM