[After-sales Service] 30-day free return, 3-year warranty, lifetime technology support. QSFPTEK is a manufacturer of transceiver. We offer many compatible options. If you are not sure about the compatibility of your device, please feel free to contact us. [High Quality] All of products are manufactured under strict quality control system, every module has been tested one by one on different switches before shipping, to ensure compatibility with different brand of switch. [Easy to Use] Plug and play, hot-pluggable. Rotate the ring latch down at 90 degree angle to unlock, then pulling transceiver out from switch. Widely used in fiber switches, routers, NIC, server or other fiber optic equipments with 10Gb SFP+ ports. [Wide Compatibility] Compatible for Cisco SFP-10G-T-S (NOT support on Cisco Nexus Series and Cisco Meraki Series), Netgear AXM765, D-L ink DEM-440XT, Mikrotik, Supermicro, and Other Open Switches. [Data Rate] 10G, multi-rate (The switch optical port must be support 10G, the optical port on the other switch end can support multi rate). 10G SFP+ to RJ45 Copper module for CAT6A/7/8 cable, copper RJ-45 connector. Supports 1000Mbps rate for using Cat 5e cable or better. (30 meters via 10Gbps, 50 meters via 5Gbps and 2.5Gbps, 100 meters via 1000Mbps.).