Cradlepoint 170700-000, Extensibility Dock For COR IBR And R500 RoutersCondition:* New Surplus Stock, In OEM Packaging. Open Box. As Pictured.Additional Notes:* MC400 Modem Expansion Slot For a Second Modem* 2 Fast Ethernet (10/100 TX) ports* Two 10-Pin Input Connectors* Extra GPIOs (1 in + 4 I/O)* 5 Volt DC, 50mA Sensor Power* Ignition Sensing* Enables Redundant Power Supply* Added GPS functionality when paired with MC400 modemCradlepoint 170700-000