64GB DDR4 RAM (Dual-channel). 15.6" 1920x1080 HD Touchscreen Matte Display. Dell Latitude 5500 15.6". Connectivity: Power Connector, USB 3.1 Gen2 (USB Type-C) connector w/DisplayPort/Thunderbolt (Optional), USB 3.1 Gen 1, Smart Card Reader (Optional), MicroSD Card Reader, Headset/Microphone Connector, USB 3.1 Gen1 Connector, USB 3.1 Gen1 Connector w/PowerShare, HDMI Connector, Gigabit Ethernet Jack, Wedge-Shaped Lock Slot.