Up to 100 meters indoors and 300 meters outdoors, depending on the environment.
One of the RTL8188CU's strongest points is its broad support across different platforms. HAOYU Electronicshttps://www.hotmcu.com Up to 100 meters indoors and 300 meters
2.4 GHz only (does not support 5 GHz Wi-Fi). Interface: USB 2.0 (also works with USB 1.1 ports). Up to 100 meters indoors and 300 meters
IEEE 802.11n, with backward compatibility for 802.11b/g. Maximum Speed: Up to 150 Mbps transmission rate. Up to 100 meters indoors and 300 meters