The VScom PCI serial and parallel cards are available in
classic and universal PCI variants for 5V and 3.3V slot.
Soon there will be PCI Express cards also.
The serial ports of the cards are available with 16 Byte FIFO
for transmit and receive in the L-series, and also with 128 Byte FIFO
for data in the H-series.
The industrial I-series cards
offer RS232, RS422 and RS485 with automatic receive and transmit control ART.