The LAN Gigabit add-on Module with Dual USB 2.0 Ports is the perfect solution for expanding the capabilities of your NUC. This unit adds a 2nd 2.5G Ethernet port and two additional USB 2.0 ports on the 22X42 M.2 expansion module, providing you with a wealth of additional connectivity options. With this add-on module, you'll be able to connect to a wider range of devices and peripherals, allowing you to enjoy a more versatile computing experience. Connector: M.2 2242 (B Key) Connectivity : 1 x Intel I225-LM 2.5GbE LAN 2 x USB 2.0 System Support: NUC 11 Pro NUC 12 Pro NUC 13 Pro Support: TALL models only