S-31DLC20D is a 1.25G SFP transceiver with a 1310nm Dual LC connector, for up to 20 kilometer Single Mode fiber connections, with DDM
S-RJ01 is RJ45 SFP 10/100/1000M copper module, compatible with most Gigabit SFP ports available on various networking devices. Shipped with CCR1016-12S-1S+, by popular demand is now also available for purchase separately.
