GLC-FE-100BX-D 100BASE-BX10-D Tx1490nm/Rx1310nm GLC-FE-100BX-U 100BASE-BX10- U TX1310nm/Rx1490nm GLC-FE-100BX-D 100BASE-BX10-D Tx1550nm/Rx1310nm GLC-FE-1 00BX-U 100BASE-BX10-U Tx1310nm/Rx1550nm GLC-FE-100BX-D 100BASE-BX40-D Tx1490 nm/Rx1310nm GLC-FE-100BX-U 100BASE-BX40-U TX1310nm/Rx1490nm GLC-FE-100BX-D 1 00BASE-BX40-D Tx1550nm/Rx1310nm GLC-FE-100BX-U 100BASE-BX40-U Tx1310nm/Rx155 0nm please do not hesitate to contact me if you have interested. Thanks Newstar networking technology Co., Limited