Review on HUYUN IPEX MHF4 Antenna WiFi Cable: Enhanced Connectivity for NGFF/M.2 WiFi/WLAN Card/3G/4G/LTE WWAN Module (58cm/22.5inch MHF4 Antenna WiFi Cable Copper Sheet for NGFF/M.2 WiFi/WLAN Card Module) by Gregory Flynt

I installed these antennas in my Dell tablet and they work fine (4/5 signal reception). I use them with an EM7455 LTE card and they allow me to reach 70Mbps upload and 30Mbps upload, but I think it also depends on the carrier. Pay attention to the installation location, because these are sensitive. I suggest placing them on the top or side edges of your tablet/laptop/display where there is no impedance. Copper foil should be applied to bare metal parts of your device for better thermal conductivity and shielding.