(3) New sealed boxes. Theproduct is a set of three Trendnet TEG-MGBS20 LC modules with a transmission distance of 20km each. These modules are designed for use in networking and computer systems, offering reliable and high-quality connectivity. The units come in a pack of three, making them ideal for setting up multiple connections or backups within a network. With the Trendnet brand known for its dependable networking products, these modules are a reliable choice for expanding or enhancing your computer networking setup.