[待更新] Developers of serial communication library and development tools that include the COMM-DRV serial communication libraries, DLL / TSR / OCX and drivers for Windows and MSDOS. We also have Bluetooth Wireless Serial Adapters, Bluetooth USB Dongles,and a large selection of PCI, PCMCIA, ISA multiport cards (RS232 / RS422 / RS485). rds RS232 / RS485 / RS422 (C, C++, VB. .Net Support) Live Chat Email: sales@wcscnet.com Competent T...