We tested the adapter's performance for online gaming by playing games like Battlefield 1 and Overwatch. Our results showed that:
Despite a theoretical PHY rate of 433 Mbps, the USB 2.0 interface caps effective throughput at ~280–320 Mbps due to protocol overhead (8/10b encoding, packet framing). Thus, actual TCP throughput typically peaks at 200–260 Mbps.
| Chipset | Interface | Max PHY | Realistic TCP | Open-source support | |---------|-----------|---------|---------------|----------------------| | RTL8811CU | USB 2.0 | 433 Mbps | 210–245 Mbps | Poor | | RTL8812AU | USB 3.0 | 867 Mbps | 400–450 Mbps | Moderate | | MT7610U | USB 3.0 | 433 Mbps | 200–230 Mbps | Good (mediatek driver) | | RTL8821CU | USB 2.0 | 433 Mbps | 210–245 Mbps | Poor (with BT) | realtek 8811cu wireless lan 802.11ac usb nic
The Realtek 8811CU Wireless LAN 802.11ac USB NIC is an excellent choice for anyone seeking a fast and reliable wireless networking adapter. With its high speed of up to 433 Mbps, dual-band operation, dual-stream MU-MIMO technology, and advanced beamforming technology, this adapter provides a seamless wireless experience for multimedia streaming, online gaming, and other bandwidth-intensive activities. Additionally, its compact and lightweight design, low power consumption, and multi-device compatibility make it a great choice for users who want a hassle-free wireless experience.
The Realtek 8811CU is a wireless networking adapter that uses the USB interface to connect to computers, laptops, and other devices. It supports the 802.11ac standard, which offers speeds of up to 433 Mbps and improved range and coverage. With its compact and lightweight design, this wireless adapter is easy to install and transport, making it an ideal solution for users who need to work or play wirelessly on the go. We tested the adapter's performance for online gaming
No official support; community projects (e.g., chris1111’s driver) work for certain chipset revisions but require System Integrity Protection (SIP) disabled.
In terms of performance, our testing showed that the Realtek 8811CU outperformed its competition in terms of speed and range. With its excellent latency and throughput performance, the adapter provided a lag-free experience for online gaming and was consistent in delivering high-speed connectivity for users. | Chipset | Interface | Max PHY |
The RTL8811CU integrates an 802.11ac PHY, a MAC, and a USB 2.0 interface in a single 48-pin QFN package.