Dell Latitude 7490 7400 Series. 32GB DDR4 RAM (Dual-channel). Connectivity: Power Connector Port, DisplayPort over USB Type-C (optional Thunderbolt 3), HDMI Port, USB 3.1 Gen 1 port, USB 3.1 Gen 1 port, Smartcard Reader (optional), Universal audio jack, Micro SD port, Micro SIM card tray (optional), 4.