John Deere MowerPlus Smart Connector (PH85234863)

The ID Label document at the FCC describes this device as a "CAN2BLE Bridge" so it likely makes data from the CAN bus available via bluetooth to the John Deere MowerPlus app for tracking lawn care and mower maintenance.

News

 * John Deere Introduces App to Track Lawn Care and Maintenance at John Deere (March 2, 2016)