Cisco CVR-QSFP-SFP10G 40GbE QSFP to 1/10GbE SFP+ Adapter Module (RenewedCVR QSFP SFP10G is a Cisco QSFP to SFP or SFP+ Adapter (QSA Module, offering 10 Gigabit Ethernet and 1 Gigabit Ethernet connectivity for Quad Small Form Factor Pluggable (QSFP only platforms. It allows smooth and cost effective migration to 40 Gigabit Ethernet by providing an option to use lower speed Small Form Factor Pluggable (SFP or Enhanced Small Form Factor Pluggable (SFP+ modules in empty QSFP ports or when the other end of the network is