The MikroTik S-RJ01 is a RJ45 SFP 10/10/1000M copper module, compatible with most SFP ports on various networking devices. The S-RJ01 is capable of up to 1.25Gb/s bi-directtional data links and can tramsit 100m over unshielded cable. It is tested and compatible with the Cloud Core Routers, Cloud Router Switches, and the RB2011 Series.