... for OS, available space)GPS:Yes, come with GPS antennaWi-Fi:Yes, 802.11b/gLAN (RJ45):Yes, 10/100 Ethernet3G/3 ... microphoneColor:Silver Expansion Card Slot:Support Micro SD / T-Flash, Max 32GBI/O Ports:USB2.0 host x2, 3.5mm audio ... , DC in, TF card slot, mini HDMI, RJ45 Ethernet, GPS antenna Keyboard:Yes, US screen keyboard or external USB keyboard Mouse ...