Specifications Memory capacity (formatted) 1.44 MB / 1.2 MB/720 KB Memory capacity (unformatted) 2.0/1.6/1.0 MB Encoding method MFM Data transfer rate 500 / 500/ 250 KB/s Track-track access time (min) 3 ms Average seek time (including setting time) 94 ms Average latency time 100 / 83.3 / 100 ms Track capacity 12.5 / 10.0 / 6.25 KB/TK Number of recording surfaces 2 Number of cylinders 80 Total number of tracks 160 Rotation speed 300 / 360 /300 RPM Track density 135 TPI Dimensions (W x H x D) 101.6 x 25.4 x 146 mm (excluding front panel) MTBF 80,000 hrs Weight 450 g
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