Brand: AMC
The AMC AV81HTc-DD (pronounced "AMC AV Eight One Hightech compact Double Density") was a 5.25-inch double-density floppy disk drive released by American Memory Technology (AMC) in the mid-1980s. It was designed to be a direct competitor to the popular IBM 3750 and 1765 drives, and offered higher storage capacity and faster transfer speeds than the single-density drives available at the time. This drive used the MFM encoding scheme, which allowed for the storage of 360,000 bytes (720,000 characters) on each disk at a transfer rate of approximately 300 kilobits per second. It was compatible with the majority of commonly used operating systems of the time, and was a popular choice for business and scientific applications.