I had no problems connecting to 5G and the speed was not an issue. Once started randomly and haphazardly, it just stops working. about 1/3 of the time it could be taken out and put back in and it would start again, about 1/3 of the time the computer needed a restart and about 1/3 of the time nothing would restart it. Save yourself the frustration and get another one. I only tried this one because it supports 5G on USB 2.0 (from USB 3 ports). This time, get an expansion card with a USB 3 adapter.
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