High-Speed Performance: The AX88772 fiber optic adapter supports USB full speed and high speed modes, with power capabilities for both bus-powered and self-powered configurations. Power Saving Mode: This USB A optical port adapter features a self-powered energy-saving mode. It automatically disconnects from the USB host when the internet cable is removed. Enhanced Efficiency: The Fast Ethernet fiber adapter supports 4 programmable USB bus endpoints, utilizing a burst transfer mechanism for faster packet transmission on the USB bus. Easy to Use: Compliant with USB specification v1.1 and v2.0, this adapter offers 100Mbps Ethernet LAN functionality based on IEEE802.3 and IEEE802.3u standards, providing simple plug-and-play Fast Ethernet internet connectivity. Wide Application: The 100M Ethernet server adapter is ideal for desktops, laptops, smart home appliances, and any embedded system with standard USB ports. Item Type: 100M Ethernet Server Adapter Material: ABS Connection Type: USB2.0 Port Type: SFP Fiber LC/SC Transmission Rate: 100mbps