Elecom Wi-Fi Wireless LAN Adapter 11ac/n/g/b/a 867Mbps 5GHz/2.4GHz USB3.0 Beamforming Z MU-MIMO Windows 11/10 Mac Compatible Black Manufacturer: Elecom Model: WDC-867DU3S2 ■ This is a compact 867Mbps wireless LAN adapter that supports 11ac and USB3.0, allowing for easy Wi-Fi 5 communication. ■ It supports communication speeds of 867Mbps on the 5GHz band (11ac/n/a) and 300Mbps on the 2.4GHz band (11n/g/b) (standard values). ■ The compact design, with only about 22mm protruding when attached to a laptop, keeps your computer area tidy. ■ It also supports the "Beamforming" function, which allows for concentrated radio wave reception even when far from the router, enabling comfortable communication. * The router must also support "Beamforming (Z)". ※ Purchased in 2024, but used only a few times. No box or instruction manual. Please download the instruction manual from the manufacturer's website.