AT-SPEX AT-SPEX 1000X (LC) SFP, 2Km The AT-SPEX offers a 2Km over Multi-Mode Fibre (1310nm) option to extend your network. The AT-SPEX is compatible with all the Allied Telesis range of products which have an SFP port. Features Compact Size Flexible architecture Plug-and-play ease of use Self-locking mechanism