The Finisar FTCD4313E3PCL-1Y 400G QSFP-DD FR4 2km SMF Optical Transceiver is a high-quality networking module that is designed for enterprise networking and server applications. With a single module that features SFP network ports, this optical transceiver is compatible with a universal range of brands and offers fast, reliable data transmission over a distance of up to 2km. The Finisar brand is known for its exceptional quality and performance in the networking industry, making this product a great choice for businesses looking to enhance their network connectivity.