Realtek Rtl8188cu Wireless Lan 802.11n Usb 2.0 Network Adapter Access

A: No. This is a 2.4 GHz-only chip.

A: You likely need to blacklist the native rtl8192cu driver. Add blacklist rtl8192cu to /etc/modprobe.d/blacklist.conf .

A: Approximately 30 meters (100 feet) indoors with line of sight. Less with walls.