We are a leading enterprise in China, specialized in providing RS232, PCI, USB, PCMCIA and Express GSM/GPRS/CDMA industrial modems, 3G HSDPA/HSUPA/EDGE modems and modem cards, PCI&RJ45 USB GSM/GPRS/CDMA 8/16/32/64 port modem pools, wireless communication parts and various cables for digital electronic products. Our devices are in compliance with RS-232 and USB interface standards and have direct connectivity with RTU PLC. Intelligent instruments and other types of industrial devices are ...