Product Number WS-G5487 Description 1000Base-ZX extended reach GBIC(singlemode) GBIC Cisco 1000BASE-ZX Wavelength (nm) 1550 Fiber Type SMF Core Size (Micron) 9/10 Cable Distance 6.2 miles (10 km) has been established for more than four years. We mainly sell new or old communication equipment. We have strong inventory and strong suppliers. We can provide you with high quality price and after-sales service. Welcome to cooperate with Telecom Construction Group, Communications Equipment Trading Company and individuals. is a supplier of communications products for Nokia, Huawei, ZTE, Ericsson, Marconi, Alcatel Lucent and other companies. As a second-hand Telecom partner recognized by hundreds of service providers around the world, you can rely on to help you expand and maintain the network at a cheaper and faster speed. We only purchase the best quality green market equipment at the best possible market price, and deliver considerable cost-effectiveness directly to our customers. If you have any product requirements, please send us an email or call us, and we will serve you whole heart.