Minitube Storage Cassettes are modular polycarbonate cassette systems for organised straw storage within liquid nitrogen tanks, particularly suited to veterinary semen banking and agricultural genetics where large numbers of straws per canister are required. They enable significantly higher storage density per tank than goblet-based systems in the CryoCan and CryoNest ranges. Non-spermicidal clinic condoms, liquefaction cups, and counting chambers complete the pre-analysis consumable range. CBS 0.5ml PETG Sperm Straws and the CBS Digitcool Controlled Rate Freezer support veterinary slow-cooling protocols across large semen dose batches.