Adapter are AC 1900 High Gain Wireless Dual Band USB 3.0 Adapter (Model Archer T9UH) priced at £32.99 at PCWorld.
PC computer was reading 2.4GHz @ 289Mbps link speed and 5GHz @ 600Mbps link speed.
The speed on ethernet lan port on my pc was 75/18 direct to router.
The speed on USB 3.0 wireless adapter on my pc was 76/19.
Speed test via wireless from downstair to upstair in my pc room:
Line Status: Connected
DSL Modulation Type: VDSL2
Annex Type: Annex A/L/M
Current Rate(kbps) 20000 80000
Max Rate(kbps) 29925 87893
SNR Margin(dB) 14.7 6.6
Line Attenuation(dB) 9.7 11.1
Errors(pkts) 0 0
I have to say the wireless speed on 5GHz was impressed as the speed always stay above 75/18 to 76/19 with no drop out. No need ethernet cable lay around.
Edited by adslmax (Fri 14-Jul-17 23:24:20)