The Netgear Aircard 340u AT&T Beam 4g LTE USB Mobile Broadband Modem is a portable USB modem that provides high-speed internet access through AT&T's 4G LTE network. It is designed for use with a variety of devices, including laptops and tablets, offering fast and reliable connectivity on the go. With its compact size and easy connectivity, the Aircard 340u is a convenient solution for those who require a mobile broadband modem for their AT&T service.