u-blox ADP-R8 Adapter Boards are highly integrated adapter boards. The boards contain a LENA-R8 module, a cellular antenna connector, a cellular USB “native” connector, a cellular USB boot slide switch, a cellular USB “two UARTs” connector, a cellular UARTs routing switch, a cellular VCC jumper, and an audio codec. Other components include the LENA-R8001M10 GNSS antenna connector, the LENA-R8001M10 VCC_GNSS enable jumper, and the LENA-R8001M10 VBCKP_GNSS enable jumper. The u-blox ADP-R8 Adapter Boards are one of the three boards included in the u-blox EVK-R8 Evaluation Kits.