ASUS PRO WS C621-64L SAGE/10G Intel LGA 3647 CEB workstation motherboard with dual Intel 10G LAN and support for 4 GPUs, 12 DIMMs, 10 SATAs, M.2, USB 3.2 Gen 2 and ASUS Control Center Single-socket motherboard is designed for Intel® Xeon® W-3200 processors and Intel Xeon Scalable processors Dual Intel® 10G LAN offers increased data throughput and improved efficiency, making it ideal for large file transfers and backup Fits up to four double-decked actively or passively cooled graphics cards with true PCIe® Gen 3 x16 link bandwidth, and supports NVIDIA® Tesla and Quadro® Supports up to 12 DIMMs for up to 1.5 TBof memory with Error-correcting code (ECC) for increased accuracy in designsand simulations and system reliability Ultra-efficient VRM heatsink: Metal-fin-array design maximizes surface area for heat dissipation to enable unthrottled performance Complete IT infrastructure management with ASMB9 out-of-band remote management and in-band ASUS Control Center software Next-gen transfer speeds with an up to 32 Gbps M.2, plus an up to 10 Gbps USB 3.2 Gen 2 Type-A and Type-C™ Core Logic Intel® C621 Chipset Memory Total Slots : 12 (6-channel per CPU, 12 DIMM per CPU) Capacity : Maximum up to 1536GB RDIMM Memory Type : DDR4 2933/2666 RDIMM DDR4 2933/2666 LRDIMM Memory Size : 128GB, 64GB, 32GB, 16GB RDIMM/LRDIMM Expansion Slots Total Slot : 5 Slot Location 1 : PCI-E x16 (Gen3 X16 Link) Slot Location 2 : PCI-E x16 (Gen3 X16 Link) Slot Location 3 : PCI-E x16 (Gen3 X4 Link) Slot Location 4 : PCI-E x16 (Gen3 X16 Link) Slot Location 5 : PCI-E x16 (Gen3 X16 Link) Form Factor CEB (12'x10.9', 305mm x 277mm) Storage SATA Controller : Intel® C621 8 x SATA3 6Gb/s ports + 1 x M.2 connector (SATA 6Gb/s & PCIe® Gen3 x4 link) SATA Controller : ASMedia® SATA 6Gb/s controller 2 x SATA3 6Gb/s ports Networking 1 x Dual Port Intel X550-AT2 10GbE LAN controller Management Solution WOL by PME,PXE ASMB9-iKVM (on-board)