A common point of confusion with the RTL8188CU is that users cannot find their network during setup. This adapter operates strictly on the frequency. If your router is set to "5 GHz only" or "802.11ac/ax only," this adapter will not detect the signal. You must ensure your router has a mixed or 2.4 GHz mode enabled.
Because it operates exclusively on the 2.4 GHz band, it does not support modern 5 GHz or 6 GHz Wi-Fi bands (Wi-Fi 5, 6, or 7). However, its low power consumption and small form factor make it an excellent budget choice for legacy desktop PCs, single-board computers like the Raspberry Pi, and basic IoT projects. Official Driver Download Links A common point of confusion with the RTL8188CU
Practical deployment tips