The Astrum NA400 USB3.0 to Gigabit Ethernet Adapter is a trail‑blazing solution for devices without an RJ45 port, delivering up to 5Gbps transfer speeds for faster, more reliable wired connectivity. Perfect for MacBook Pro, laptops, and desktops, it ensures smooth downloads, streaming, and file sharing compared to unstable Wi‑Fi connections. Its compact slim metal casing makes it portable and nearly invisible when connected, while plug‑and‑play installation with LED indicators ensures effortless setup. Supporting IPv4/IPv6 protocols and multiple operating systems (Windows, Mac OS, Linux), the NA400 is ideal for both home and office use. Key Features USB 3.0 → Gigabit RJ45 LAN conversion Up to 5Gbps super‑speed data transfer Driver‑free plug‑and‑play installation with LED indicators IPv4/IPv6 protocol support for modern networks Slim, portable metal casing design Compatible with Windows, Mac OS, Linux Technical Specifications Feature Specification Model / SKU A72040‑B Interface USB 3.0 Speed 5Gbps OS Support Windows 7 / 8 / 10, Mac OS, Linux Dimensions 235 × 24 × 14mm Net Weight ~30g Gross Shipping Weight ~120–150g (with packaging) Warranty 24 months What’s in the Box 1× Astrum NA400 USB3.0 Gigabit Ethernet Adapter 1× User Manual