ITEM NAME:Advanced USB RTL-SDR (0.5PPM) TCXO Metal Case SMA R820T2 RTL2832U E rsBDA~.This is a new generation of software defined radio receiver RTL-SDR with RTL2832 ADC chip, 1 PPM TCXO, SMA F connector and aluminum case with passive cooling. 5 PPM TCXO temperature compensated. This model adapted new solution ADC RTL.