Slip your notebook into the Smart Fit st&, plug in a single USB (Universal Serial Bus) 2.0 cable, & you're ready to enjoy the ergonomics & productivity of a desktop. Connector Type 4 PIN USB (Universal Serial Bus) Type A Mini-phone mono 3.5 mm Mini-phone stereo 3.5 mm RJ-45 Interface Ethernet 10 Base-T/100 Base-TX Type Headphones Hi-Speed USB (Universal Serial Bus) Microphone Network