Hunan Zhaoyong Communication Technology Co., Ltd. is a leading supplier of second-hand branded optical modules, with 15 years of experience in the industry. We source high-quality optical modules from global IT asset disposition (ITAD) companies, offering cost-effective solutions without compromising on quality.Our inventory includes components from top brands such as Cisco, Nokia, Ericsson, Alcatel, Nortel, Lucent, Huawei, and ZTE. We provide a wide range of modules, including SFP, SFP+, XFP, Q...