Nexas Fanuc 16B/C & 18B/C Memory Upgrade (2 Meg) - Replaces the Fanuc A20B-2902-0352 SIMM Card. Upgrade for MAIN Board # A16B-3200-0110, A16B-32-0170, and A16B-3200-0190 (but not Fanuc Series 16MB MAIN board A16B-3200-0010, which needs a special module).