Plugable's Thunderbolt 3 Dual HDMI Adapter enables connection of two additional displays without compromising performance. Supports up to two additional independent 4K displays with 60Hz refresh rates or lower modes like 2560x1440 at 60Hz. Thunderbolt 3-attached displays tap directly into your system's graphics processor to enable high-performance output without utilizing additional system resources. Not all Thunderbolt 3 systems are compatible with dual display graphics adapters. Compatible Systems For both graphics adapter outputs to function, system manufacturer must have routed all DisplayPort lines to the Thunderbolt 3 port(s). This is an engineering decision made by your system manufacturer. Currently only Apple, Dell and HP Thunderbolt 3 systems meet this requirement but additional compatible Thunderbolt 3 systems are expected in the future. Tested/validated with: Dell XPS 13 9350 & XPS 15 9550 HP Elite X2 1012 G1 Requires up-to-date system BIOS, Thunderbolt 3 drivers, and Thunderbolt 3 firmware installed on host system prior to device installation. Non-compatible Systems Will not function when attached to a non-Thunderbolt 3 USB-C port As mentioned above, most current non-Dell, non-HP Thunderbolt 3 systems are not compatible due to a limited number of DisplayPort lines routed to the Thunderbolt 3 port. Non-compatible Displays Cannot be converted to dual-link DVI or DisplayPort In the Box 1x Plugable TBT3-HDMI2X-83 w/ built-in 10 inch (25 cm) Thunderbolt 3 USB-C cable and quick-install guide.