... S14 channel (2D1+2CIF / 4 HD1 / 4CIF)1 SD card +G-SENSORAS-BW1001-S24 channel (2D1+2CIF / 4 HD1 / ... functional >> Dual SD card storage, single card to support a maximum capacity of 64GB >> Built-in GPS module optional >> Dynamic detection ... : RS485, RS232, differential speed interface >> Car black box function, recording speed, position, momentum, acceleration, temperature, brake, reverse, turn, ...