Network Adaptor Startech USB32000SPT . The Startech USB32000SPT USB network adapter is a device designed to expand connectivity for laptops and Ultrabooks® through a single USB 3.0 port. This model offers two Gigabit Ethernet RJ45 ports that enable high-speed wired network connections supporting 10/100/1000 Mbps speeds, fully compliant with IEEE 802.3i/u/ab standards, ensuring compatibility with standard Ethernet infrastructures. It also includes a USB 3.0 Pass-Through port that maintains access to an additional USB port for connecting external devices without sacrificing the original connectivity. Thanks to USB 3.0 technology, it provides a maximum bandwidth of up to 5 Gbps, allowing each Ethernet interface to have its own dedicated channel without performance loss. This adapter is especially useful for users needing simultaneous connection to two independent physical networks or environments using virtual machine setups requiring multiple network interfaces. Key technical features include support for Checksum Offload Engine (COE), which offloads data flow checksum operations to reduce CPU load, support for IPv4 and IPv6 packets, efficient processing of large TCP volumes, Jumbo frames, full-duplex mode, flow control according to 802.3x, and VLAN tagging, ensuring advanced traffic management and stable, professional connectivity. Its compact black design and simple USB connection make it a practical and versatile solution for system administrators and users needing quick, reliable Ethernet interface expansion without opening the device or installing internal cards. In short, the Startech USB32000SPT adapter is a robust, complete option to expand network infrastructure on portable devices, combining speed, compatibility, and efficiency in a single accessory. Type: WiredProduct with plug: YesType of plug: Plug EUConnections: Ethernet LANUSB x 1USB2USB 3.2USB 3.0RJ45Power supply: Electric NetworkWiredColour: BlackData transfer: 5000 Mbit/sInterface: Gigabit EthernetPorts: 4Compatible: LinuxLaptopConnectivity: Ethernet LANCharacteristics: LED in operation indicatorCertificate: RoHSSuitable for: LaptopSpeed: 10/100/1000 MbpsIncludes: User manual