                         SEAGATE TECHNOLOGY, INC.
                              1-800-SEAGATE
                          http://www.seagate.com
                            (C)opyright 1996


ST-9422A, Filepro 420 AT (Kiwi CFL420A)


           TOP        44-pin I/O Connector (* see below)
                                            Factory tes
                                          oo
                   ::::::::::::::::::::1  o o
              PWA
                               
    pin-20 removed for keying 



                             o-o  Cable Select
                             o-o  CAM off, ISA on
                             o-o  Master ON, Slave OFF



 * 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-9422A
                 Filepro 420 AT (Kiwi CFL420A)

       FORMATTED CAPACITY _______________________421
       ACTUATOR TYPE ____________________________VOICE COIL
       CYLINDERS __PHYSICAL______________________2393
       HEADS ______PHYSICAL______________________4
       DISCS (2.5 in) ___________________________2
       MEDIA TYPE _______________________________THIN FILM
       HEAD TYPE ________________________________THIN FILM
       RECORDING METHOD _________________________ZBR RLL (1,7)
       INTERNAL TRANSFER RATE (Mbits/sec) _______19 to 33
       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 11.1
       PIO MODE _________________________________2
       DMA SUPPORT ______________________________EISA Type B
       SPINDLE SPEED (RPM) ______________________3600
       AVERAGE LATENCY (mSEC) ___________________8.33
       BUFFER ___________________________________64K
        Read/Write Multiple, Read Look-Ahead,
        Multi-Segmented
       INTERFACE ________________________________ATA
       SECTORS PER DRIVE (LBA mode) _____________
       TPI (TRACKS PER INCH) ____________________4200
       BPI (KBITS PER INCH) _____________________80K
       AVERAGE ACCESS (ms) ______________________12
       SINGLE TRACK SEEK (ms) ___________________3
       MAX FULL SEEK (ms) _______________________20
       MTBF (power-on hours) Office _____________300,000
       SHOCK (G's):
                operating (Read/Write) __________20
                abnormal ________________________
                nonoperating ____________________300
       ACOUSTICS (bels) (typ/max) _______________42/
       POWER DISSIPATION (watts) ________________
       POWER REQUIREMENTS:  +5V START-UP (amps) _1.0
       POWER MANAGEMENT (Watts):
                           ACTIVE _______________1.0
                           IDLE _________________.85
                           STANDBY ______________.15
       WRITE PRECOMP (cyl) ______________________N/A
       REDUCED WRITE CURRENT (cyl) ______________N/A
       LANDING ZONE (cyl) _______________________AUTO
       IBM AT DRIVE TYPE ________________________*

       Physical:
                        Height (inches/mm):   .50/12.7
                        Width  (inches/mm):  2.75/69.8
                        Depth  (inches/mm):  4.00/101.6
                        Weight     (oz/kg):   5.0/0.142


 * 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 translations: 816 cyl, 16 heads, 63 sectors = 421,134,336


Note: A "custom" or "user-definded" 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)".

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. (04/02/97)

