The GD-04P link cable, which allows you to program CU-08 units through a USB port and perform configuration using free downloadable C-Link software.
Self adhesive antenna for CA-2103 (CA-180x, CU-08), GSM 900 / 1800MHz, 1.5 m cable
Magnetic GPS antenna, SMA connector. Can be used with CA-2103 Athos (CA-1803, CU-08).