From a system point of view parallel PCI is a poor use of I/O pins, so Intel is pushing serial interfaces. If you're building motherboards, it's cheaper and easier to implement gigabit serial ...

The OXmPCI954 is designed to handle 15-Mbit/s asynchronous and 60-Mbit/s synchronous serial data rates. It integrates four high-performance UART channels, a 3.3-V PCI interface, and a local ...

I'm not seeing a lot of these around, and the ones that I did see on Newegg had some pretty poor reviews. I'd rather not buy a PCI expansion card that'll end up being outdated fairly ...