6KL Gigabit module with two SFP pluggable open transceiver ports for user-selectable SFP Gb transceivers in each, configure in 6KL slot B only.brbrGigabit SFPs are available for multimode SX (550M) and ESX (2 KM), for single mode LX (10 and 25 KM), ZX (40 and 70 KM), and specials.brbrThe Magnum 6KL is ideal for building a switched, hardened Ethernet network infrastructure, connecting edge devices such as PLCs and IEDs with upstream switches or routers. Designed for use in industrial and heavy duty outdoor applications such as industrial video surveillance systems with PoE, power utility substations, traffic control and transportation facilities, tariffed carrier field facilities, or oil and gas, the hardened Magnum 6KL handles stressful workloads.