ASUS WS C621E Sage Workstation DDR4 Intel Motherboard

The ASUS WS C621E SAGE is a professional dual-socket EEB workstation motherboard designed for compute-intensive workflows including 3D rendering, video production, mechanical simulation, and multi-threaded scientific computing. Built on the Intel C621 chipset, it accommodates two Intel Xeon Scalable Processors (1st and 2nd Generation) in LGA 3647 (Socket P) sockets, each rated up to 205 W TDP, enabling symmetric multiprocessing across both CPU dies. The board's twelve DIMM slots support DDR4 RDIMM and LR-DIMM ECC memory at speeds of 2933, 2666, or 2400 MHz, with a combined maximum capacity of 1,536 GB — a critical capability for large dataset manipulation and memory-bound workloads. Error-correcting code (ECC) memory support helps maintain data integrity when running multiple RAM-intensive applications simultaneously. Graphics scalability is a standout feature: the board offers seven PCIe 3.0 x16 physical slots (three running at full x16 mode, two switchable between x16 and x8/x8, and two at x8 mode), enabling up to 4-way NVIDIA GeForce SLI, 4-way AMD CrossFireX, or 2-way NVIDIA Quadro SLI configurations. This makes the WS C621E SAGE a compelling platform for GPU-accelerated rendering and compute tasks. High-speed storage is handled by ten SATA 6 Gb/s ports (eight via the Intel C621 chipset with RAID 0/1/5/10 support, plus two from an ASMedia controller), four onboard U.2 connectors for 2.5-inch NVMe drives, and one M.2 Socket 3 (M Key) slot supporting 2242, 2260, 2280, and 22110 form factors in both SATA and PCIe modes — all capable of up to 32 Gb/s transfer rates via PCIe Gen 3.0 x4 bandwidth. NVMe PCIe SSD RAID 0 is also supported for maximum sequential throughput. Connectivity includes dual Intel I210-AT Gigabit LAN controllers, two USB 3.1 Gen 2 ports (one Type-A, one Type-C via ASMedia controller, up to 10 Gb/s), eight USB 3.1 Gen 1 ports (four back panel, four mid-board), and four USB 2.0 ports. Audio is handled by a Realtek S1220A 7.1-channel HD Audio CODEC with DTS Connect, DTS Headphone:X, optical S/PDIF output, and 32-bit/192 kHz playback support. Workstation-class reliability features include ASUS ProCool power connectors, USB BIOS Flashback for firmware recovery without a CPU or memory installed, DIGI+ VRM with a digital 7+1 phase CPU power design, SafeSlot PCIe reinforcement, TPM header, ASUS Control Center (ACC) compatibility, and an optional ASUS PIKE SAS upgrade kit. An onboard Aspeed AST2500 BMC with 64 MB VRAM provides IPMI-capable out-of-band management via an optional VGA port. Verified Specifications: - Form Factor: EEB, 12 × 13 inches (30.5 × 33 cm) - CPU Socket: Dual LGA 3647 (Socket P), Intel Xeon Scalable 1st & 2nd Gen, up to 205 W - Chipset: Intel C621 - Memory: 12 × DIMM, max 1,536 GB, DDR4 2933/2666/2400 MHz RDIMM/LR-DIMM ECC - Expansion: 7 × PCIe 3.0 x16 slots (3×x16, 2×x16/x8, 2×x8) - Storage: 10 × SATA 6Gb/s, 4 × U.2, 1 × M.2 (SATA & PCIe) - LAN: 2 × Intel I210-AT Gigabit - USB: 2 × USB 3.1 Gen 2, 8 × USB 3.1 Gen 1, 4 × USB 2.0 - Audio: Realtek S1220A 7.1-channel, 32-bit/192 kHz - Warranty: 3 Years