Complex sentence: The Nvidia Quadro Plex system supports up to four GPUs per unit, and connects to the host pc via a small form factor Pci express card connected to the host, and a 2M (6.5 foot) NVIDIA Quadro Plex Interconnect Cable.
Split into simpler sentences: The NVIDIA Quadro Plex system supports up to four GPUs per unit. It connects to the host PC via a small form factor PCI Express card connected to the host, and a 2 meter (6.5 foot) NVIDIA Quadro Plex Interconnect Cable.