Click or scroll to zoom Tap or pinch to zoom Click or scroll to zoom Tap or pinch to zoom Click or scroll to zoom Tap or pinch to zoom EX30 Expansion Card by Yeastar $650.00 SKU EX30 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart EX30 used to expand E1/T1 interfaces. It support 1 E1/T1 interface.