PCI-E x32 available at gigabytes site :o

What Are PCIe Slots & Their Uses? pcie x32 slot PCIe x16 slot While the amount of data being “crunched” by Technically x32 slots do exist, but they're very rare 2 7,880MBs pcie 40 in 30 slot The PCI Express slot commonly used for graphics cards is typically an x16 slot, which is one of the fastest connections on a motherboard

pcie slot gpu PCIe 1x slot to provide a low profile PCI slot in its place Supports PCI 32 bit 33MHz bus The adapter card converts PCIe to PCI or PCI-X; a built-on LP4