Click to expand Tap to zoom D-LINK DEM-QX10Q-LR4 Trnsceivr by D-Link Sold out $2,949.95 SKU DLDEMQX10QLR4 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Sold out 40GBase-LR4 QSFP+ Transceiver Single mode 1310nm - 10km