The Sonnet Echo 11 Thunderbolt 4 Dock is currently available for US$219.99 at Amazon in the US, the gadget's lowest price to date. The docking station has four Thunderbolt 4 ports; you can use one to charge a laptop at 90 W. Plus, the device supports dual 5K displays or a single 8K display.https://www.notebookcheck.net/Sonnet-Echo-11-Thunderbolt-4-Dock-now-at-lowest-price.695727.0.html
This is just another rebranded Kensington SD5700T; same as Razer's thunderbolt dock.