***** **********Best Quality Guranteed. *****1000BASE-T transceiver, copper RJ45, 100m reach*****100% Compatible to work with Cisco switches using GLC-T Copper *****Easy installation, plug in and work, fully hot-pluggable*****Enjoy 30-day money back guarantee and 3-year warranty service*****HiFiber has a large stock with immediate delivery. You are kindly be suggested to choose shipment from HiFiber if there is no enough stock fulfilled by