************************************************************
                         Miniscribe Disk Drive Specifications
                                        For
                                    Model: 3180S
             ************************************************************

             FORM FACTOR                           5.25 inch HH
             INTERFACE                                     SCSI
             DATA ENCODING METHOD                       2,7 RLL
             DATA TRANSFER RATE (MByte/Sec)
                SUSTAINED                                  1.25
                BURST                                       4.0

             DISK DRIVE CHARACTERISTICS
                HEADS                                         7
                CYLINDERS                                  1255
                SECTORS/TRACK (512 Byte Sectors)             36
                UNFORMATTED BYTES/TRACK                  20,832
                RADIAL TRACK DENSITY (TPI)                1,135
                ROTATIONAL SPEED (RPM)                    3,600
                UNFORMATTED CAPACITY (Million of Bytes)   183.0
                FORMATTED CAPACITY (Millions of Bytes)    160.0
                FORMATTED CAP. (MB = 1,048,576 Bytes)     152.6

             ACCESS TIMES (mSec)*
                SINGLE TRACK                                3.5
                AVERAGE OF ALL POSSIBLE SEEKS                17
                ONE-THIRD STROKE                             18
                MAXIMUM                                      35
             *(INCLUDES SETTLING)

             POWER REQUIREMENTS
                DISSIPATION (Watts)
                   TYPICAL                                 15.0
                   MAXIMUM                                 18.5
                CURRENT (Amps)
                   +5 V DC (+ or - 5%)                      0.6
                   +12 V DC (+ or - 5%)                     1.1
                   MAXIMUM STARTUP CURRENT                  2.5

             PHYSICAL DIMENSIONS
                HEIGHT (in)                               1.625
                WIDTH (in)                                 5.75
                DEPTH (in)                                    8
                WEIGHT (lbs)                                3.2

             OPERATIVE ENVIRONMENTAL LIMITS
                MINIMUM TEMPERATURE (Centigrade)             10
                MAXIMUM TEMPERATURE (Centigrade)             50
                THERMAL GRADIENT (Degrees C/Hour)            10

             RELIABILITY
                MTBF (Hours)                             35,000
                MTTR (Minutes)                               30
                COMPONENT DESIGN LIFE (Years)                 5