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
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X11DPi-N For Supermicro Dual-socket Server Motherboard Intel C621 LGA-3647 DDR4 PCI-E 3.0 High Quality Fully Tested Fast Ship - AliExpress
ASUS WS C621E Sage EEB Server Motherboard - Newegg.com
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
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25 Brand New sealed T2H Dual LGA-3647 socket blade server motherboard | eBay