Has been imitated cannot be transcended！
Founded in 2006, USR has been a expert of serial
communications in Internet of Things (IOT) and Machine - to
-Machine (M2M) soluations. Today, our specialized:
- Serial to Etherent module converter
- Serial to WIFI module converter
- GSM Modem / 4G Router
Factory direct sales with last version and software. Proefessional
technology team to support online.
In short, we've been doing this line for more than 9 year, “Be
honest, Do best "