3Com EtherLink III 3C509B-TP Parallel Tasking 16Bit 10Base-T ISA Network Adapter
Model: EtherLink III. Type: Network Adapter. Used Fair (Moderate use and age). Used Poor - Heavy use and age. Zero defects. Part Number: 3C509B-TP. Part Number 2: 03-0021-201. Key Functions Working (Appendix C - Test and Repair).