TEAC Floppy Disk Drive FD235HF. Access time: 94 ms, Drive device speed: 300 RPM, Storage capacity: 1.44 MB. Interface: 34 PIN IDC. Mean time between failures (MTBF): 30000 h. Dimensions (WxDxH): 101.6 x 145 x 25.4 mm, Weight: 0.345 kg. Operating temperature range (T-T): 4 - 52 °C, Operating relative humidity range: 20 - 80 %