SEAGATE TECHNOLOGY, INC.
       Customer Technical Support FAX Network +1 408 438-8137
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� United States    +1 408 438-8771 �  United Kingdom +44 628 478011  �
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                            (C)opyright 1991



ST-42100N  Wren 9 FH SCSI-2 Fast

                        � Synchronous Spindles option         DC
                        �                                     Power
                        �   �����������������������������͸ /���������\
      ��������P�W�A��������͵:SCSI:Cable:::::::::::::::::1�͵ 0 0 0 0 ���
      �Ŀ             ���Ŀ �����������������������������; ��5�G�G�12�
      �o�o o o o o o o�o+o�   �������1 �������1 �������1
      �o�o o o o o o o�o-o�   �������� �������� ��������
      �1�  4 2 1      �����     Terminator SIPS
       � � ����� � � �
       � �   �   � � �� Motor Start Delay (16 secs * ID)
       � �   �   � ���� Parity check enable
       � �   �   ������ Motor Start option enable
       � �   ���������� Drive ID's, ID 0 (none) if only SCSI device
       � �������������� Terminator power to the Bus (vertical)
       ���������������� Terminator power from Drive, default (vertical)
                      � Terminator power from Bus (lower horizontal)



           LED
          ���Ŀ      (Viewed from front of drive)          � GND
          � 0 �                                            �
      ����������������������P�W�A���������������������������������������
                                                         o o o  J6
                                         pin-1 (+5v) ----o o o
                                                         � � �
                                 Remote LED connection ��� � �
                                  Write Protect Remote ����� �
                               Switch cable connection �     �
                                      Factory Use Only �������


                             ST-42100N
                             WREN 9 FH

       UNFORMATTED CAPACITY (MB) ________________2,200
       FORMATTED CAPACITY (xx SECTORS) (MB) _____1,900*
       AVERAGE SECTORS PER TRACK (with spares)___96
       ACTUATOR TYPE ____________________________ROTARY VOICE COIL
       TRACKS ___________________________________38,595
       CYLINDERS ________________________________2,573 (user)
       HEADS ____________________________________15
       DISCS (5.25 inch) ________________________8
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________ZBR RLL (1,7)
       INTERNAL TRANSFER RATE (mbits/sec) _______20 to 31
       EXTERNAL TRANSFER RATE (Mbytes/sec) ______10.0 Sync.
       SPINDLE SPEED (RPM) ______________________3,600
       AVERAGE LATENCY (mSEC) ___________________8.33
       BUFFER ___________________________________256 Kbyte
         Read Look-Ahead, Adaptive,
         Multi-Segmented Cache
       INTERFACE ________________________________SCSI-2 Fast
       BYTES PER TRACK __________________________57,200 avg.
       SECTORS PER DRIVE ________________________3,705,120
       TPI (TRACKS PER INCH) ____________________2,150
       BPI (BITS PER INCH) ______________________
       AVERAGE ACCESS (ms) ______________________12.95
       SINGLE TRACK SEEK (ms) ___________________2
       MAX FULL SEEK (ms) _______________________29
       MTBF (power-on hours) ____________________150,000
       POWER REQUIREMENTS: +12V START-UP (amps) _4.5
                           +12V TYPICAL (amps) __1.5
                           +5V START-UP (amps) __0.8
                           +5V TYPICAL (amps) ___0.6
                           TYPICAL (watts) ______21
                           MAXIMUM (watts) ______58
       LANDING ZONE (cyl) _______________________AUTO PARK
       IBM AT DRIVE TYPE ________________________0 or NONE

 * 512 bytes per sector, one spare sector per track,
   two spare cylinders per unit.

Already low-level formatted at the factory.

Seagate reserves the right to change, without notice, product
offerings or specifications. (10/31/91)