Brainboxes PX-335 - seriell adapter - PCIe - RS-422/485 x 4

Low profile PCI Express Card providing four RS422/485 serial ports. Up to 921,600 data transfer rates and the 128 byte deep transmit and 128 byte and 128 byte receive FIFOS, coupled with 1Mbit/s line drivers deliver uncompromising performance on your PC.