The debug connector on the bottom, labelled “USB Service” on the board, is a discontinued nonstandard USB device port made by Rosenberger under the name RoDI. The connector uses a magnet to hold the connector in place, which is also used to hold in a metal plug to protect it when not in use. A stronger magnet on the outside can be used to remove it. According to the system design document, this port can be used to access the internal SD cards without disassembling the device.

Rosenberger part numbers:

• Connector: MF2K201-400L
• Cable: L99-838-1500

A substitute for the cable might be possible to make using pogo pins.