It is probably just a brand, like many others, and based on a reference design from the OEM.

I have a small Tenda 5-port gigabit dumb switch. It uses the same switch chip as this TP-Link, just with different branding; even the "SG105" model number is the same:

https://goughlui.com/2022/02/27/unbox-teardown-tp-link-tl-sg...