The HS-4/CL Maxwell 4mm Cleaning Cartridge is a high-quality product designed for DDS, DDS2, 3, and 4 data storage drives. Made by Maxell, a trusted brand in data storage solutions, this cleaner cartridge has a capacity of 40 cleanings, ensuring optimal performance for your drives. With its specific model number HS-4/CL, this product is a reliable choice for maintaining the cleanliness and functionality of your data storage devices. Made in Canada, this unit quantity of 1 cartridge is a valuable addition to any computer or networking setup.