Difference:KDSM-3 to KDSM-2

1. Addition of Service-Use socket
2. Addition of Optical Ethernet connection
3. Addition of USB socket for connection to PC/MAC
4. Removal of TOSLINK socket from 2off to 1off
5. Addition of another SPDIF Input. (One socket can still be configured as a digital Input or Output)
6. Addition of another HDMI-2 input
7. Addition of third analogue input. (RCA type)