The RTL8188CU is a single-chip Wireless Local Area Network (WLAN) USB minicard. It integrates a MAC, a 1T1R capable baseband, and an RF transceiver. It supports a maximum data rate of up to 150 Mbps on the 2.4 GHz frequency band.
The Ultimate Guide to the Realtek RTL8188CU Wireless LAN 802.11n Driver for Windows 10 (64-Bit)
Windows frequently turns off USB ports to save power, which can drop your Wi-Fi connection. Open and expand Network adapters .