ASUS Pro WS X570 ACE AM4 ATX Motherboard - AMD X570 Chipset (1x PCIe 4.0 x16 & 1x PCIe 3.0 x1- AMD AM4 Socket - Supports 4x DIMM DDR4 Sockets (Max. 128GB) - Supports NVIDIA 2-Way SLI / AMD 3-Way CrossFireX (2nd & 3rd Gen Only) - 2x M.2 Socket 3 - 1x U2 - 4x SATA 6Gb/s - Realtek® S1200A 8-Channel High Definition Audio CODEC - Realtek® RTL8117 LAN - ATX Form Factor (30.5 x 24.4cm) - Rear USB Ports: 2x USB-A 3.2 Gen 1, 4x USB-A 3.2 Gen 2 & 1x USB-C 3.2 Gen 2 - 3 Years Limited Warranty