Cisco 4SQRA reverse adapter

The Cisco 4 x SFP10G to QSFP Reverse Adapter (4SQRA) offers Quad Small Form?Factor Pluggable Plus (QSFP+) connectivity for 10 Gigabit Ethernet Small Form-Factor Pluggable Plus (SFP+)�only platforms. It allows smooth and cost-effective migration to 40 Gigabit Ethernet by providing an option to use QSFP+ modules with empty SFP+ ports when the other end of the network is running at 40 Gigabit Ethernet.