[grork]

I'm very happy with the OWC dock -- it's been rock solid, and in the eGPU/Intel config allowed single cable by daisy chaining the eGPU off the dock. I had a similar experience with their ThunderBolt hub (which is just 3 TB4 outs, 1 TB4 in).

I've theorized for a while that the OWC, Razer, Belkin, and Kensington TB4 docks are all the same (Razer sacrificed a USB port for RGB) -- they have the same basic layout, and same basic capabilities. The CalDigit TS4 looks like a different design, adding some more ports.

I have a friend with various TB docks w/ Intel Mac + eGPU, and have experienced a consistent issue when using a secondary USB-C DAC for audio. I haven't, but if that's your scenario, might be worth a pause.

[rtsao]

Your assumption is correct. Those docks are all based on the Goodway DBD1100 [1]. When I was researching which dock to purchase myself, I came across this comprehensive list [2] of Thunderbolt docks which was super informative.

[1] http://www.goodway.com.tw/prodimg/edm/DBD1100.pdf

[2] https://dancharblog.wordpress.com/2021/02/05/usb4-tb4-docks/