3Com 3C905-TX

This particular card has an Assy. No. of 03-0104-004 and revision of B,
 * and 03-0104-005 and revision of A. The unit's S/N is 6HH180A0DF.

The 3Com logo, all the model / product info, "(C)1996 ALL RIGHTS RESERVED", and
 * "10/100BASE-TX Ethernet Adapter" is silkscreened on the top of the card.

The 3Com Ethernet controller is marked with...
 * Parallel Tasking
 * Performance
 * 3Com 40-0336-004
 * 9644K 01398555
 * LUCENT 40-03364
 * "FAB 02-0104-001 REV A", and "COVERED BY ONE OR MORE OF THE FOLLOWING PATENTS:
 * 5268899, 5307459, 5434872" is etched onto the back of the bottom layer of the board.
 * Patent US 5268899 A: Apparatus for generating pseudo-random numbers
 * Patent US 5307459 A: Network adapter with host indication optimization
 * Patent US 5434872 A: Apparatus for automatic initiation of data transmission

The device is using the National Semiconductor
 * DP83840A - 10/100 PHY
 * DP83223V - Twister Twisted Pair Transciever

Images
https://b.radikal.ru/b12/2202/f2/08db82c5a78d.jpg