Regardless of their small size, they contain a number of connectivity options, including two Thunderbolt 2 and four USB ports, a Gigabit Ethernet RJ-45 jack and an HDMI terminal, along with an SDXC card slot for additional storage options. For networking, there is 802.11 ac Wi-Fi, backwards compatible with 802.11 a/b/g/n, and Bluetooth 4.0 support.