Buslink Buslink Media is dedicated to innovation and excellence in computer storage, input devices and other electronic peripherals. Buslink has been a leader in encrypted external hard drives. Buslink CipherShield series of 3.5" and 2.5" units have been deployed by leading corporate and government entities alike. Today. Buslink manufactures and markets secured and high-capacity USB 3.0 storage products like encrypted hard drives and flash drives. The technology used on these products range from RFID (Radio Frequency Identification) to biometric fingerprint identification.