The Sonnet Thunderbolt 3 Male to Dual HDMI 2.0 Female Adapter utilizes the reversible USB Type-C connector to support a maximum throughput of 40 Gb/s when used with compatible devices. The connector also transmits data via USB 3.1 at up to 10 Gb/s, and the dual HDMI 2.0 outputs allow you to connect up to two 4K displays simultaneously at 60 Hz. Please note that not all Windows and Mac computers with Thunderbolt 3 support dual displays or 60 Hz refresh rates.

You'll have to check the official Sonnet website for more details..

• 1 x Thunderbolt 3 (USB Type-C Male)
• 2 x HDMI 2.0 Female Ports
• Connect up to Two 4K Displays