This is newest version of XPROG-M ECU Programmer. XPROG-M V5.5.5 is the only tool can decryption BMW CAS4, hard disk and USB Dongle. br br Newest XPROG-M V5.5.5 X-PROG M BOX V5.55 ECU Programmer with USB Dongle Especially for BMW CAS4 Decryption br br 5 Highlights to Get Newest XPROG-M V5.5.5: br br 1. This is the only version XPROG-M can decypte new version BMW CAS4. br 2. hard disk and USB Dongle, more convenient and secure. br 3. Add new authorization: AUTH-0025 Authorized 1142014 br 4. Latest software version: V5.5.5 br 5. High quality with one year warranty.