Upgrade your wireless network with this TP-LINK Archer T4UH USB adapter, which features Wireless-AC technology with 5.0GHz and 2.4GHz bands for data speeds up to 1200 Mbps. The USB 3.0 interface simplifies connection to your PC.
Brings in a strong signal on both bands from my TP-Link 171...get 5 bars now instead of two or three, resulting in faster internet. Have two rooms separating router from low shelf of desktop, ran wire to higher ground, get better signal. Was easy to install.