The TP-Link RE550 AC1900 Wireless Dual Band Wi-Fi Range Extender Booster is a white device that can provide a maximum LAN data rate of 1000 Mbps and a maximum wireless data rate of 1900 Mbps. It is equipped with one Ethernet port (RJ-45) and is designed to fit a PC. The extender is dual-band, operating on both 2.4 GHz and 5 GHz frequency bands, and is suitable for expanding the range of a wireless network. With a sleek design and compact size of 6.4 inches in length, 2.6 inches in height, and 3 inches in width, the TP-Link RE550 is a versatile and efficient solution for improving connectivity in a home or office setting.