Accortec 10GBASE XENPAK - XENPAK transceiver module - 10GBase-LX4 - SC multi-mode - plug-in module - up to 980 ft - 1310 nm - for P/N: WS-SUP32-10GE-3B, WS-SUP32-10GE-3B=, WS-SUP32-10GE-3B-RF, WS-X6704-10GE-RF