Echo 11 Thunderbolt 4 HDMI Dock Support Library

Description: This is the English language quick start guide for the Sonnet Echo 11 Thunderbolt 4 HDMI Dock. This is revision D of this document.

You can connect a four-port USB hub (or device with an internal USB hub) to any of the Dock’s USB ports. You cannot connect a hub (or device with an internal USB hub) that has more than four USB ports. The USB specification does not permit another level of cascaded hubs. You may connect a hub with more than 4 ports to a Thunderbolt port.

When a Mac is started with the dock already connected, the dock’s built-in HDMI port may go offline after the Mac wakes from sleep. If this occurs, the HDMI display may not be detected again until the dock is power cycled.

Workarounds / Recommendations to help prevent this issue:

• Connect the dock after the Mac has finished booting. Disconnect the dock before restarting the Mac or installing macOS system software updates.

• Use display sleep instead of computer sleep. For example, set a Hot Corner to put the display to sleep rather than allowing the Mac itself to enter sleep.

• Use a Thunderbolt-to-HDMI adapter instead of the dock’s built-in HDMI port. Connect the adapter to one of the dock’s Thunderbolt ports.

European Union regulations require that devices of this type shall not exceed 100W power delivery. For this reason, docks no longer provide, and computers no longer request, precisely 100W power delivery from a USB-C charging device. Tolerances in devices, components, voltage regulators, impedences, cable type and length, etc. could push 100W nominal power over 100W, which would exceed the hard limit of the specification. The mean power requested by computers that need ~100W, and the mean power provided by docks is nominally 96W with a range of 92-100W over a range of conditions. 100W is the maximum power provided under the most demanding conditions.

Hello,

I am sorry that your dock is not working as expected. Unfortunately, it is not possible to connect to multiple displays connected to the dock with an M3 Apple computer. Apple has a support article here on this topic . You will see in the last section of the article there is a section titled "If Your Display Won't Connect." Here it states that "If your display is connected to a hub or dock and you can use it only to mirror your built-in display, connect your display to a port directly on your Mac. "

Thanks,