Extreme Power and PerformanceUp to 4-way multiple-graphic cardsThe Intel C621 chipset-based dual socket workstation motherboard features on-demand NVIDIA SLI and AMD CrossFireX technology.ASUS WS C621E SAGE accommodates up to four dual-width graphic cards with a four true PCIe Gen3 x16 link to unleash maximum graphic performance. With support for up to 4-way NVIDIA SLI AMD CrossFireX and 2-Way NVIDIA Quadro SLI WS C621E SAGE is an excellent choice for content creators mechanical or architectural engineers and anyone with processing-intensive workloads.Extraordinary performance with dual Intel Xeon CPU overclockingDual Intel Xeon CPU overclocking pushes the power processing power beyond the extremeASUS WS C621E SAGE breaks performance barriers giving you the capability to overclock dual Xeon CPUs. With its unique BIOS mechanism dedicated to boosting CPU performance WS C621E SAGE can deliver incredible system speed.Expandable and ScalableSupporting up to 12 DDR4 Error-correcting code memory (ECC Memory)Keeps your system running at a brisk pace even when running multiple hardware-intensive programs! ASUS WS C621E SAGE supports up to 12 DDR4 error-correcting code (ECC) memory to ensure fast and responsive system performance even when running multiple RAM-intensive applications such as video audio and image editing applications simultaneously.Lightning-fast storage speed with NVMe PCIe SSD RAID 0 supportWith support for multiple NVMe PCIe storage devices configured as a RAID 0 array ASUS WS C621E SAGE lets you enjoy lightning-fast data transfers that are far beyond those provided by single drives.Super-fast transfers at up to 32Gbps with onboard four U.2 and M.2ASUS WS C621E SAGE is built with onboard M.2 and U.2 connectors to fit both 2.5-inch NVMe and M.2 SSDs. By using the maximum PCIe Gen3.0 x4 bandwidth of 32Gbps WS C621E SAGE enables data transfer speeds that are up to 5.3X faster than traditional storage devices.10Gb/s USB 3.1 Gen2 onboardWith backward-compatible USB 3.1 Gen2 Type-A and reversible USB 3.1 Gen2 Type-C ports you'll experience ultimate connection flexibility and data-transfer speeds of up to 10Gb/s twice as fast as USB 3.0 or USB 3.1 Gen1.Exclusive audio features with Realtek codec and unique design features for pristine and powerful audioNot satisfied with a single storage device read/write speeds? Then join the fast lane and build a RAID 0 array using NVMe PCIe storage drives to enjoy data transfers at lightning speeds!ASUS WS C621E SAGE has a unique audio codec designed in close collaboration with Realtek. The Realtek S1220A features an unprecedented 120dB signal-to-noise ratio for the stereo line-out and an 113dB SNR for the line-in providing pristine audio qualityImmersive headphone audio with DTS Headphone:XOffers 3D surround-sound technology for incredibly rich audio with all types of headphones.