About this item 7-in-2 Multifunctional ExtensionThis 7-in-2 USB C adapter expands your laptop's capabilities with 3 USB 3.0 ports, a 4K HDMI port, Thunderbolt 3 USB C female ports, and an SD/TF card reader. Bring all your needs into one slim hub. Specially designed for laptops with specific dimensions. 40Gbps Thunderbolt 3 PortThe powerful Thunderbolt 3 port supports data transfer up to 40Gb/s, offers 4K display support, and provides up to 100W charging power, ensuring you won't run out of power while transferring data. SuperSpeed USB 3.0 PortsAddresses the issue of limited ports with 3 USB 3.0 ports offering a signaling rate of 5Gbps, allowing for quick uploading and downloading of photos, videos, music, and other files, while also supporting high-bandwidth devices such as high-resolution webcams, scanners, printers, and high-capacity storage systems. Multi-Monitor DisplayThe HDMI port supports a 4K@30Hz resolution, while the multi-function port also supports 4K@30Hz. The Thunderbolt