What is XP400 adapter? The XP400 key & chip programmer is specially designed to read transponder data (including Mercedes Benz infrared smart key), clone and generate exclusive keys, read/write on-board EEPROM data, and read/write Freescale 9S12 MCUs. By working with … Continue reading Autel XP400 Adapter User Manual – used with IM608 to read/write transponder