PCIe gen4 Switch 5x x16 - Microchip Switchtec PM40100two SlimSAS 8i PCIe gen4 inputs (1 mandatory) five PCIe gen4 x16 outputs quad width spaced ideal for 5 large consumer GPUs in 19 inch auxiliary PCIe gen4 x4 SlimSAS Port for NIC or NVME Features a Mircochip Switchtec PM40100 PCIe gen4 packet switch PCIe enumeration issues with different Mainboard Firmware is possible > Epyc, Threadripper and AMD AM5 are usually OK > Intel Mainstream as of now is not compatible > If problems arise please contact me 81.