ST-4086 (94155-86) Wren 2 ST412 MFM

      Drive Sel  +-------------+
      o o o o o  |   Term     1|
      o o o o o  | 14 pin dip  |                      +---------+
                 +-------------+                      | O O O O | Power
      1 2 3 4 Radial                                  \---------/
                           Command +---------------+1  12 G G 5
     ------------------------------+------------- -+-----------------
         Data   +--------------+1  +---------------+
     -----------+------------ -+-------------------------------------
                +--------------+

                              ST-4086
                        94155-86 WREN 2 FH

       UNFORMATTED CAPACITY (MB) ________________86
       FORMATTED CAPACITY (17 SECTORS) (MB) _____72
       ACTUATOR TYPE ____________________________VOICE COIL
       TRACKS ___________________________________8,325
       CYLINDERS ________________________________925
       HEADS ____________________________________9
       DISCS ____________________________________5
       MEDIA TYPE _______________________________OXIDE
       RECORDING METHOD _________________________MFM
       TRANSFER RATE (mbits/sec) ________________5.0
       SPINDLE SPEED (RPM) ______________________3,600
       INTERFACE ________________________________ST412
       TPI (TRACKS PER INCH) ____________________960
       BPI (BITS PER INCH) ______________________9,274
       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) ______________________N/A (926)
       REDUCED WRITE CURRENT (cyl) ______________N/A (926)
       LANDING ZONE (cyl) _______________________AUTO PARK
       IBM AT DRIVE TYPE ________________________46, *

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING
   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP
   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

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


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