.The CTM8251AT with Communication Modules Through Hole RoHS is a communication module manufactured by Taisko. It is capable of connecting to various types of networks, such as ISDN, Ethernet and USB. It is designed to provide a reliable, low cost solution for connecting a local area network to a wide range of peripheral devices. It offers a variety of options for communication, such as data transfer rates of up to 64kbps, support for voice, telephony and streaming audio/video, plus TCP/IP communications. The module is compatible with several popular operating system platforms, such as Linux and Windows. It is RoHS compliant, so it is free from lead, mercury and other hazardous substances.