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                         SEAGATE TECHNOLOGY, INC.
                              1-800-SEAGATE
                          http://www.seagate.com
                            (C)opyright 1993



ST-9385AG (Marathon 340)

                            TOP       ÚÄ 44-pin I/O Connector (* see below)
                                      ³                     o o
                                    ::::::::::::ù::::::::1  o o
                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ
                                                ³           ³ ³
       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³
                                                            ³ ³
                                                            ³ ³
 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0
 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0
 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1
 Reserved Position (Do Not Use) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive
   via the interface connector. The drive does
   NOT make use of a +12vdc power line.
   pin-41  +5vdc (Logic)
   pin-42  +5vdc (Motor)
   pin-43  Ground
   pin-44  Reserved


                             ST-9385AG
                             Marathon 340


       FORMATTED CAPACITY (xx SECTORS) __________340
       AVERAGE SECTORS PER TRACK ________________ rounded down
       ACTUATOR TYPE ____________________________STRAIGHT ARM
       TRACKS ___________________________________
       CYLINDERS ________________________________(user)
       HEADS ____________________________________6
       DISCS (2.5 in) ___________________________3
       MEDIA TYPE _______________________________THIN FILM
       HEAD TYPE ________________________________THIN FILM
       RECORDING METHOD _________________________ZBR RLL (1,7)
       INTERNAL TRANSFER RATE (mbits/sec) _______16.2 to 27.7
       EXTERNAL TRANSFER RATE (Mbytes) __________up to 13.3
       SPINDLE SPEED (RPM) ______________________3,980
       AVERAGE LATENCY (mSEC) ___________________7.54
       BUFFER ___________________________________120 Kbyte
        Multisegmented cache
       INTERFACE ________________________________AT
       SECTORS PER DRIVE ________________________666,876
       TPI (TRACKS PER INCH) ____________________3,282
       BPI (BITS PER INCH) ______________________59,124
       FCI (FLUX DENSITY) _______________________44,360
       AVERAGE ACCESS (ms) ______________________16
       SINGLE TRACK SEEK (ms) ___________________5
       MAX FULL SEEK (ms) _______________________27
       MTBF (power-on hours) Office _____________300,000
       ACOUSTICS (typ/max dBA) __________________30/33
       SHOCK (G's):
                   operating/nonoperating _______100/200
                   SafeRite shock sensor
       POWER REQUIREMENTS: +5V START-UP (amps) __1.2
       POWER MANAGEMENT (Watts):
                           ACTIVE _______________1.85
                           IDLE _________________0.9
                           STANDBY ______________0.3
                           SLEEP ________________0.25
       WRITE PRECOMP (cyl) ______________________N/A
       REDUCED WRITE CURRENT (cyl) ______________N/A
       LANDING ZONE (cyl) _______________________AUTO
       IBM AT DRIVE TYPE ________________________*

       Physical:
                        Height (inches/mm):     0.75/19.05
                        Width  (inches/mm):     2.76/70.10
                        Depth  (inches/mm):     4.01/101.85
                        Weight    (ozs/kg):     7.4/0.21


 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO
SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE
AVAILABLE. (see below)

Possible translation:   934 cyl, 14 heads, 51 sectors = 341,440,512

Note: A "custom" or "user-defined" CMOS drivetype  may ask for a
numerical value for the Write Precompensation cylinder and for the
Landing Zone cylinder.  A basic rule-of-thumb for drive models that do
not require the old Write Precomp technique or a Landing Zone because
they are Auto-Parking is to add 1 to the cylinder value being used. As
an example: If cylinders equaled 820, then both Write Precomp and
Landing Zone would be entered as 821. Some BIOS will convert this to
65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION
ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it
is imperative that the values be written down and kept with your
permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product 
offerings or specifications. (08/17/94)

A copy of this specification file may be obtained by FTP at
ftp://ftp.seagate.com/techsuppt/at/st9385ag.txt.