Buy and try out. The theory is that the streaming does not run over the internet from the provider, it only has to be ensured that the PC is connected via the same home network (router) as Steam Link.

It doesn't matter if you have 2mb/s, 30mb/s or no internet provider, as long as you use the same router as the connection point, you can use the maximum data speed from the router, this is usually far above what a computer transmits in terms of data volume.

However, if I am wrong, as I do not own this product and am only writing based on hardware theory and not programming, then 25mb/s should also be sufficient.

Conclusion: I highly recommend testing this product and if the quality or functionality is not right, return it to Digitec.

PS: Data cable (Ethernet) transmits up to 1Gb/s and a router is usually at a data throughput of over 500Mb/s with a LAN connection.

Greetings Xephira