There is no AsRock Z790 Taichi motherboard because the Z790 chipset does not exist. However, it is possible that you mean the AsRock Z390 Taichi motherboard, which is designed for 8th and 9th generation Intel processors with the LGA 1151 socket. The AsRock Z390 Taichi is a powerful motherboard with an Intel Z390 chipset. It supports DDR4 memory with a speed of up to 4200 MHz and has four DIMM slots for a maximum memory capacity of 128 GB. The motherboard offers a variety of connectivity options, including three PCIe 3.0 x16 slots, three PCIe 3.0 x1 slots and two M.2 slots for fast SSDs. It also offers a variety of USB ports, including USB 3.1 Gen2 Type-A and Type-C ports, USB 3.1 Gen1 and USB 2.0 ports.