This Cisco CVR-X2-SFP compatible X2 TwinGig Converter Module allows users to migrate from Gigabit Ethernet to 10 Gigabit Ethernet uplinks without the added costs of upgrading switches or modules. Our converter is guaranteed to be 100% compatible with the equivalent Cisco converter. It is built to meet or exceed the specifications of Cisco, as well as to comply with multi-source agreement (MSA) standards to ensure seamless network integration. We stand behind the quality of our products and proudly offer a limited lifetime warranty.