The Cisco CVR-4SFP10G-QSFP is a reverse adapter manufactured by Cisco. It features a QSFP+ form factor on one end and supports four 10 Gigabit SFP+ interfaces, enabling the conversion of a single QSFP+ port into four separate SFP+ ports for 10 Gbps Ethernet connections.

This passive breakout-style adapter allows high-density connectivity between equipment with 40 Gigabit QSFP+ uplinks and devices supporting individual 10 GbE via SFP+. No external power source or software installation is required. The unit does not mount directly but plugs into compatible hardware slots. Port configuration includes one side with an integrated male QSFP connector interfacing to host platforms and four female cages for standard hot-swappable SFP+ modules used in various switching applications across select Cisco systems that support break-out mode from their native firmware or configurations.

Cisco CVR-4SFP10G-QSFP: Cisco 4SQRA reverse adapter