70 Mbps is quite slow. Are you ever planning on upgrading your internet? Also, why do you want to use WiFi instead of just wired ethernet for your desktop?
Cat 5 cabling is more expensive than adding an adapter especially if the cable run is lengthy and then you have the issue of cabling laying on the floor unless you run it in the walls which is a lot of trouble versus a wireless adapter...
Really this is for a laptop that I am not happy with as far as it's wifi speeds. I want to see if a USB wifi adapter with a little antenna can do better. I would get two of these to have one for a backup. 70mbs is faster than I need. I was doing OK with 25mbs but Xfinity increased speed whether I wanted it or not
Not really. 400K is what Centurylink puts out around here. The 1.5 Mbps I am paying for seems quite fast.
These days, you are quite correct. Just shows how quickly things change. I remember when I thought our 6Mbps DSL connection was fast, lol. Then AT&T advised us they were eliminating that service, and gave us a free upgrade to 100Mbps. Running a speed test showed we were actually at about 120 to 130Mbps.
Funny note. I had to run the speed test on my cel phone, because our laptops are so old they only showed about 35Mbps.