CalDigit Thunderbolt Station - Thunderbolt Interface Expansion Device for Mac and PC Expand your connectivity to up to eight devices with a single Thunderbolt cable Dual Thunderbolt ports allow users to daisy-chain up to five devices Three USB 3.0 ports for blazing 5Gb/s transfer speeds One HDMI port for display output One Gigabit Ethernet port for wired network access One 3.5mm Audio Input Jack and One 3.5mm Audio Output Jack