UGREEN USB 3.0 to RJ45 Gigabit Ethernet Network Adapter with USB 3.0 Hub Support TF SD Card Reader for Windows 10 8.1 8 7 XP,Vista,Mac and Linux Systems Laptops and PCs MULTIFUNCTIONAL USE: Ugreen USB 3.0 gigabit ethernet adapter expands you PC and laptops with 2 Ports USB 3.0 hub and a Gigabit 1000Mbps Ethernet Network as well as SD/TF card slots. DATA UP TO 5Gbps: With 2 ports super speed USB 3.0 hub, this USB 3.0 to gigabit adapter supports data transfer rates up to 5Gbps. Backward compatible with USB 2.0 / 1.1 GREAT COMPATIBILITY: This USB ethernet adapter with hub and SD card reader can work with Windows 10/8.1/8/7/XP/Vista, Mac OS and Linux Systems. Compatible with IEEE 802.3, 802.3u and 802.3ab (10BASE-T, 100BASE-TX, and 1000BASE-T) Nintendo Switch Support. Chipset AX88179. DC-Jack designed for some power hungry devices, please kindly note: this product ONLY works with DC 5V (Center Positive Polarity) adapter for power supply. USB power cables not included. LIFETIME WARRANTY: Ugreen USB 3.0 gigabit ethernet lan network adapter with card reader is backed with lifetime warranty and customer service support.