Supports 4th Gen Intel Xeon W-3400 and W-2400 Processors (LGA4677) 20+2 Power Phase, 90A SPS Design 14 Layer Server-Grade Ultra Low-Loss PCB 8 x DDR5 DIMMs Supports Quad Channel ECC Registered memory, up to 6800+ (OC) 4 PCIe 5.0 x16, 1 PCIe 4.0 x16 4 Blazing M.2 (PCIe Gen5 x4), 8 SATA3 1 U.2 mini SAS Connector (PCIe Gen4 x4) 1 USB 3.2 Gen2x2 Type-C (Front) 2 USB 3.2 Gen2 (Rear) 7 USB 3.2 Gen1 (3 Rear, 4 Front) 7.1 CH HD Audio (Realtek ALC897 Audio Codec) Marvell AQUANTIA 10 GbE LAN Intel i226LM 2.5 GbE LAN Supports ASRock Blazing Quad M.2 Card