Accessory for the COR IBR900 Series, COR IBR600B Series, and COR IBR600C Series routers that supports dual-modem, additional Ethernet port and GPIOs, and enables redundant power. (Part #170700-000)Features When Combined With COR IBR900 Series, COR IBR600B, or COR IBR600C Series- Dual-modem MC400 expansion slot- Two extra 10/100 Ethernet ports- 3rd-party expansion card support- 2x10 connector for:- Extra GPIOs (1 in + 4 I/O)- 5 V DC 50 mA sensor power- Ignition sensing- Redundant power supply capable- Adds GPS functionality when paired with MC400LP6 or MC400LPE modem