3Com 3C900B-TPO

This particular card has a P/N of 03-0147-000, revision C. The unit's S/N is HMGRD49C73.

All the model / product info, "ALL RIGHTS RESERVED", the 3Com logo, "(C) 1997", "U.S PATENT: 5,307,459", and "10 Mbps Signalling Rate" is silkscreened on the top of the card.
 * PARALLEL TASKING II
 * PERFORMANCE
 * 3Com 40-0456-004
 * 0133T 43172435
 * AGERE 40-04564