this post was submitted on 21 Feb 2026
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Basically, yes, but there are only three speeds in common use. 10/100/1000M will be enough to support for basically every consumer device out there. 2.5G is starting to become common in routers and some desktop or high end docks, and 10G is starting to show up in high end prosumer devices, but they can usually also support at least 100/1000M. There isn’t much 10M gear still out there except in very specific industrial applications. Really, if your router supports 100/1000 it will cover 99% of the devices in the wild.
Oh very interesting. Thanks for being so patient! I had no idea about this. I always just assumed that if a device said it supported 100M, that necessarily meant that if you connect a 10M device up to it, it'll automatically take the lower speed. Like a car with a max speed of 10 can go on a road with a speed limit of 100...it'll just be limited to 10. I didn't realise it had to sync up like that.