As a 1T1R device, the RTL8188CU lacks MU-MIMO support. In congested environments, latency increases and throughput drops non-linearly. It is not suitable for high-density access point applications.
Bring reliable Wi‑Fi to older computers with the Realtek RTL8188CU USB 2.0 Wireless LAN Adapter. This compact 802.11n dongle offers up to 150 Mbps theoretical throughput, supports WPA/WPA2 encryption, and installs easily on many Windows and Linux systems. Perfect for browsing, video streaming, and light online gaming on devices without built‑in wireless.