TweakTown posted a review on the Highpoint 1740 SATA-II Controller

It begs the question - why haven’t we seen more PCI Express cards on the market? We simply can’t answer that, we can only surmise that PCI is cheaper to produce and more widely accepted. There are guaranteed PCI slots on any motherboard these days and even in older server systems which don’t get as upgraded as often as the desktop sector. Highpoint has sent us their latest RAID controller card for the PCI bus that is guaranteed to work in any PC as long as it has a PCI slot and that is any motherboard from the Intel Pentium 2 era to now.

Highpoint 1740 SATA-II Controller - PCI isn't Dead yet