Brainboxes PX-368 interface cards/adapter Internal Serial

4 Port RS422/485 PCI Express Serial Port Card With Opto Isolation
PCI Express card providing four Opto Isolated RS422/485 serial ports. Data transfer rates up to 921,600 baud rates and the 128 byte deep transmit and 128 byte receive FIFOS, coupled with 1Mbit/s line drivers deliver uncompromising performance on your PC. Drivers for Windows 32 bit and 64 bit Operating Systems including Windows 2000, XP, Server 2003, Vista, Server 2008 and Windows 7.