Thank you for contacting Teltonika Crowd support community.
RUT240 has a RAM capacity of 64MB, DDR2. RAM is used to store temporary data, Teltonika devices use RAM memory to store data such as Bluetooth, Gps data, Modbus data and more temporary data. If device loses power or if device undergoes reboot, it loses all data in RAM. So RUT240 can store data in RAM if it’s on, once it reboots all data is lost.