SEAGATE TECHNOLOGY, INC.
Technical Support Bulletin Board
408/438-8771  [up to 9600, N-8-1]
(C)opyright  1990

                             ST-4135R
                        94155-135 WREN 2 FH

       UNFORMATTED CAPACITY (MB) ________________135
       FORMATTED CAPACITY (26 SECTORS) (MB) _____115
       ACTUATOR TYPE ____________________________VOICE COIL
       TRACKS ___________________________________8,640
       CYLINDERS ________________________________960
       HEADS ____________________________________9
       DISCS ____________________________________5
       MEDIA TYPE _______________________________OXIDE
       RECORDING METHOD _________________________RLL
       TRANSFER RATE (mbits/sec) ________________7.5
       INTERFACE ________________________________ST506
       TPI (TRACKS PER INCH) ____________________980
       BPI (BITS PER INCH) ______________________13,670
       AVERAGE ACCESS (ms) ______________________28
       SINGLE TRACK SEEK (ms) ___________________5
       MTBF (power-on hours) ____________________40,000
       POWER REQUIREMENTS: +12V START-UP (amps) _4.5
                           +12V TYPICAL (amps) __2.0
                           +5V START-UP (amps) __1.3
                           +5V TYPICAL (amps) ___0.75
                           TYPICAL (watts) ______28
                           MAXIMUM (watts) ______61
       BUFFERED STEP PULSE RATE (micro sec) _____8-200
       WRITE PRECOMP (cyl) ______________________128
       REDUCED WRITE CURRENT (cyl) ______________N/A (961)
       IBM AT DRIVE TYPE ________________________12 *

* MAY REQUIRE FORMATTING/PARTITIONING SOFTWARE

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