All Essential Ports - Thunderbolt 4 docking station Upstream Host Port with 96W Power Delivery, USB-A 3.2 Gen 2 with up to 10Gbps data transfer speeds and 3 Thunderbolt 4 Downstream Ports with up to 15W charging, 40 Gbps data transfers, and 8K or 4K video output to external monitors. 4 Thunderbolt 4 Ports - The Satechi Thunderbolt 4 dock features one port that connects to the host device and 3 Thunderbolt 4 downstream ports that support 15W charging, 40Gbps data transfer speed and video output at 4K@60Hz dual screen, 8K@30Hz or 6K on Mac single screen. Note: Only one external monitor is supported on Macs with base model M1/M2/M3 processors. Compatible With - Windows 11/10 laptops equipped with a Thunderbolt 4 port (Intel Evo Platform), and MacBooks running macOS 11 (Big Sur) or later. Backwards compatible with USB4. Heat Regulated When charging or transferring data the Thunderbolt 4 Hub may get warm but will efficiently dissipate the heat. Standard operating temperatures