MDF-DU700ZHA-PA Configuration for 3″ Boxes UFD-433, CUFT-443, UFD-443-S September 22, 2025 Maximum Rack Capacity per Freezer: 24 regular racks: (12) UFD-433 (12) UFD-443-S Maximum Boxes per Rack: UFD-433 = (12) boxes UFD-443-S= (16) boxes Maximum Boxes per Freezer: 336 boxes