************************************************************
                         Miniscribe Disk Drive Specifications
                                        For
                                    Model: 9380E
             ************************************************************

             FORM FACTOR                           5.25 inch FH
             INTERFACE                              10 MHz ESDI
             DATA ENCODING METHOD                       2,7 RLL
             DATA TRANSFER RATE (Mbit/Sec)                 10.0

             DISK DRIVE CHARACTERISTICS
                HEADS                                        15
                CYLINDERS                                  1224
                SECTORS/TRACK (512 Byte Sectors)    34,35 or 36
                WRITE PRECOMPENSATION CYLINDER            NA***
                REDUCED WRITE CURRENT CYLINDER            NA***
                MINIMUM STEP PULSE RATE                   NA***
                UNFORMATTED BYTES/TRACK                  20,832
                RADIAL TRACK DENSITY (TPI)                1,100
                ROTATIONAL SPEED (RPM)                    3,600
                UNFORMATTED CAPACITY (Millions of Bytes)  382.5
                NA***(NOT APPLICABLE TO ESDI DRIVES)

                SECTOR MODE                           34     35     36
                ------------------------------------------------------
                FORMAT CAP. (Millions of Bytes)    319.6  329.0  338.4
                FORMAT CAP. (MB=1,048,576 Bytes)   304.8  313.8  322.7

             ACCESS TIMES (mSec)*
                SINGLE TRACK                                3.8
                AVERAGE OF ALL POSSIBLE SEEKS                16
                ONE-THIRD STROKE                             17
                MAXIMUM                                      35
             *(INCLUDES SETTLING)

             POWER REQUIREMENTS
                DISSIPATION (Watts)
                   TYPICAL                                 18.0
                   MAXIMUM                                 22.0
                CURRENT (Amps)
                   +5 V DC (+ or - 5%)                      0.6
                   +12 V DC (+ or - 5%)                     1.2
                   MAXIMUM STARTUP CURRENT                  4.5

             PHYSICAL DIMENSIONS
                HEIGHT (in)                                3.25
                WIDTH (in)                                 5.75
                DEPTH (in)                                    8
                WEIGHT (lbs)                                  6

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

             RELIABILITY
                MTBF (Hours)                             50,000
                MTTR (Minutes)                               30
                COMPONENT DESIGN LIFE (Years)                 5



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                      9380E JUMPER CONFIGURATIONS
-----------------------------------------------------------------------------

SECTOR CONFIGURATION
--------------------
          J-19      J-12     J-13    BYTES PER SEC.     SEC. PER TRACK    
          ----      ----     ----    --------------     --------------
SOFT      ON        ON       ON              SOFT SECTOR MODE
FIXED     OFF       ON       OFF         530                  34   
FIXED     OFF       OFF      ON          512                  36
FIXED     OFF       OFF      OFF         512                  35


DRIVE SELECT (J-16)                            TERMINATORS
-------------------                            -----------
J-16        1    2    3                        RP-4, RP-17
----        -    -    -
SELECT 1    ON   OFF  OFF  
SELECT 2    OFF  ON   OFF
SELECT 3    ON   ON   OFF


            THESE JUMPERS MUST BE INSTALLED FOR DRIVE OPERATION
            ---------------------------------------------------
                 J-14, J-20, J-21, J-24, J-27, J-29, J-30.