SEAGATE TECHNOLOGY, INC.
Technical Support Bulletin Board
408/438-8771  [300-9600 HST, MNP 3/5, N-8-1]
(C)opyright  1990

Wren 2 HH ST-506             ST-279R (94205-77)

     Drive Select                                     Ŀ
     o o o o o o o           1 Terminator              O O O O  Power
     o o o o o o o          Ŀ            \\
     1 2 3 4 R r reserved                12 G G 5
              
                            Controller Cable
            Radial
       If twisted cable, use Drive Select 2

                              ST-279R
                        94205-77 WREN 2 HH

       UNFORMATTED CAPACITY (MB) ________________77
       FORMATTED CAPACITY (26 SECTORS) (MB) _____65
       ACTUATOR TYPE ____________________________VOICE COIL
       TRACKS ___________________________________4,945
       CYLINDERS ________________________________989
       HEADS ____________________________________5
       DISCS ____________________________________3
       MEDIA TYPE _______________________________OXIDE
       RECORDING METHOD _________________________RLL
       TRANSFER RATE (mbits/sec) ________________7.5
       INTERFACE ________________________________ST506
       TPI (TRACKS PER INCH) ____________________960
       BPI (BITS PER INCH) ______________________14,302
       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) __1.5
                           +5V START-UP (amps) __1.0
                           +5V TYPICAL (amps) ___0.4
                           TYPICAL (watts) ______20
                           MAXIMUM (watts) ______??
       BUFFERED STEP PULSE RATE (micro sec) _____8-200
       WRITE PRECOMP (cyl) ______________________128
       REDUCED WRITE CURRENT (cyl) ______________N/A
       LANDING ZONE (cyl) _______________________AUTO PARK
       IBM AT DRIVE TYPE ________________________*

 * 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)
