M mrmjs Distinguished Aug 1, 2006 170 0 18,680 Sep 16, 2007 #1 what uses the PCI Express x4 slot? Just curious.
F FSXFan Distinguished Feb 14, 2007 205 0 18,680 Sep 16, 2007 #2 HDD controllers, NIC's, PNY makes a Quadro video card for it.
chookman Distinguished Mar 23, 2007 3,319 0 20,790 Sep 17, 2007 #3 I have a RAID controller that uses PCI-e 4x... currently have it in a 16x length slot though 😉