CeBit 2008: ASUS Dual CPU workstation motherboard launched - PC Perspective
Amazon.com: ASUS WS C621E Sage Extreme Power Intel® Xeon® Processor Workstation Motherboard for Two-way XEON CPU performance, with U.2, M.2 connectors, dual Gb LAN, USB 3.1 Type-C & Type-A, 10 x SATA
ASUS X99-WS/IPMI Motherboard Intel X99 LGA 2011-v3 DDR4 ATX M.2 Core USB 3.1 | eBay