CWDM Multirate SFP Transceiver 1062 Mbps..4 Gbps for STM-16/OC-48, Gigabit Ethernet, 1x/2x/4x Fibre Channel, Single Mode CWDM Laser, LC connector, min. 17,5dB Budget, Digital Diagnostics, Rate selectable, 30 (@4G) / 50km (1G)(4G..