SMA MD.485-US-40 RS-485 Communication Module for SMA Inverters Please log in to see price or purchase this item Quantity discounts available QuantityPrice SKU: 570-1219 Details SMA,RS-485 Communication Module for Core-1 and Sunny Boy -40/-41 Inverters, MD.485-US-40 Details Back DetailsSMA,RS-485 Communication Module for Core-1 and Sunny Boy -40/-41 Inverters, MD.485-US-40