DESIGNED EXCLUSIVELY FOR ULTRASLIM HP ELITEBOOK NOTEBOOKSEXPANDS DISPLAY, NETWORK, AND DEVICE CONNECTIVITY SO YOU CAN BE MORE PRODUCTIVE THROUGHOUT THE DAY—ALL THROUGH A SIMPLE ONE-CLICK SLIDE-IN SIDE DOCKFOUR USB 3.0 PORTS OFFER HIGH-SPEED CONNECTIVITY TO THE USB DEVICES YOU USE MOST. USB 3.0 REDUCES THE TIME REQUIRED FOR DATA TRANSMISSION (VS. USB 2.0)1, IS BACKWARD COMPATIBLE WITH USB 2.0, AND IS BI-DIRECTIONALDISPLAYPORT AND VGA PORTS DELIVER LEGACY AND FUTURE COMPATIBILITY WITH YOUR CHOICE OF VIDEO DEVICES AND AN ETHERNET/LAN PORT KEEPS YOU ONLINEHP ELITEBOOK 820 G1 NOTEBOOK PC; HP ELITEBOOK 840 G1 NOTEBOOK PC; HP ELITEBOOK 850 G1 NOTEBOOK PC; HP ELITEBOOK FOLIO 9470M NOTEBOOK PC; HP ELITEBOOK FOLIO 1040 G1 NOTEBOOK PC; HP ELITEBOOK REVOLVE 810 G1 TABLET; HP ELITEBOOK REVOLVE 810 G2 TABLET; HP ZBOOK 14 MOBILE WORKSTATION