SEAGATE TECHNOLOGY, INC.
       Customer Technical Support FAX Network +1 408 438-8137
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                            (C)opyright 1991



ST-4038 ST412 MFM

                                                          /-4-3-2-1-\
                                                          | O O O O | Power
                                                          \---------/
 /Data Cable                                        1       5 G G 12
 ========= ==                 ==================== ===   ============
              o o o o o o o o    /1     \Controller Cable
              o o o o o o o o    ||
Drive Select->1 2 3 4 | | | |    |+- Resistor Termination Pack
                | | | | | | |    ||
                | \+/ | | | |    \/
                |  |  | | | |
                |  |  | | | |
                |  |  | | | \ Radial
                |  |  | | \-- Recovery Mode
                |  |  | \---- Write Fault
                |  |  \------ Not Connected
                |  \--------- Never Used (Drive Select 3 and 4)
                \ If twisted cable, use Drive Select 2

                              ST - 4038

       UNFORMATTED CAPACITY (MB) ________________38.2
       FORMATTED CAPACITY (17 SECTORS) (MB) _____31.9
       ACTUATOR TYPE ____________________________VOICE COIL
       TRACKS ___________________________________3,665
       CYLINDERS ________________________________733
       HEADS ____________________________________5
       DISCS ____________________________________3
       MEDIA TYPE _______________________________OXIDE
       RECORDING METHOD _________________________MFM
       TRANSFER RATE (mbits/sec) ________________5.0
       SPINDLE SPEED (RPM) ______________________3,600
       INTERFACE ________________________________ST412
       TPI (TRACKS PER INCH) ____________________750
       BPI (BITS PER INCH) ______________________9,617
       AVERAGE ACCESS (ms) ______________________40
       SINGLE TRACK SEEK (ms) ___________________8
       MTBF (power-on hours) ____________________25,000
       POWER REQUIREMENTS: +12V START-UP (amps) _4.0
                           +12V TYPICAL (amps) __1.5
                           +5V TYPICAL (amps) ___1.5
                           TYPICAL (watts) ______25.5
                           MAXIMUM (watts) ______56
       BUFFERED STEP PULSE RATE (micro sec) _____10-70
       WRITE PRECOMP (cyl) ______________________300
       REDUCED WRITE CURRENT (cyl) ______________N/A (734)
       LANDING ZONE (cyl)________________________AUTO PARK
       IBM AT DRIVE TYPE ________________________22, 20 or 8

Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90)