The product is a lot of 10 Integra Networks SFP-40-GD Transceiver Module with a DDM 1310nm wavelength and a distance of 40km. These modules are designed for use in enterprise networking and server environments, offering reliable and high-quality performance. With the brand reputation of Integra Networks, customers can expect these modules to meet their networking needs effectively and efficiently. These transceiver modules are ideal for switches and hubs that require fast and dependable data transmission over long distances.