Vantec Thunderbolt 3 To Dual HDMI 2.0 4K (60Hz) Adapter (VANTEC CB-TB3HD142 TB ADP)- Device Support Input: Thunderbolt 3 (USB C, 24 pin Male), Device Support Output: Dual HDMI 2.0 (Female), Display Modes: Primary, Extended or Mirror, Power Supply: Bus-powered, no external power needed, Dimensions: 3.9 x 2.4 x 0.6 inches / 98.8 x 60 x 15 mm, Weight: 4.4 oz. / 125.2g