1. Free update. No subscription, no annual fee. 2. Features a USB smart dongle with all module licenses stored on the dongle. 3. Master version supports saving data in bin format without encryption. 4. Operates offline; VR requires online connection. Read/Write VR with user VR account. 5. Includes integrated Scanmatik2. Helpdesk provides free Damaos for tuner (compatible with WinOLS damaso file, WinOLS Damaos, and MAP package). SM2 PRO newly supports ECU, MED/EDC17 Read and Write without opening the shell. Supported models: - Simos 12.1, 12.2 - Simos PCR2.1 - GPEC2, GPEC2A, GPEC4, GPEC4LM - SID208 - MB SID307, SID310 Simple 3-point PCB connection via holes; can be connected without removing gel. Applicable for: SIM2K-240, SIM2K-241, SIM2K-250, SIM2K-251, SIM2K-260, SIM2K-305, MT86 LR SID208 SID307, SID309, SID310 SDI21.x E6T83XXX, E6T32xxx Transtron SH72544R Transtron L4.3 Hino EDC7UC31 Greatwall DCM6.2AP 8GMK/8GML, MJ9DF, 10GF FAL MJ8DF/8F2, 8GMB/8GMC/8GMF/8GMW/8GSF/8GSW MSD80, MSV80, MSD81, MSD85.0/MSD85.4, MSD85.1/MSD85.3, MSD87.1/MSD87.2, MSV90 Name: ECU Programmer Dongle Material: ABS Color: Green Package Contents: 2pcs ECU Programmer Dongle Note: Light reflection and different displays may cause slight color variation between the image and the actual item. Measurement allows an error of +/- 1-3cm.