9-pin USB connector on the Precision 3630 motherboard - Dell Community
Dell Precision 3630 Workstation with Intel Core i7-8700, 32GB DDR4, 1TB SSD, 2 x 24 inch U2415 Monitors with Desk Mount Stands, WiFi, Wireless Keyboard and Mouse, Windows 10 Pro (Renewed)
Used - Like New: Dell Precision T7820 Intel Chipset C621 Socket LGA3647 Desktop Motherboard 804P1 Dell Desktop Motherboards - Newegg.com