Home Graco Matrix USB/Rs422 Converter Graco Matrix USB/Rs422 Converter by Graco Inc. Graco Matrix USB/Rs422 Converter Click to expand Tap to zoom $308.99 Call 800-294-1605 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Connects transceiver to computer when longer cable runs are needed.