Fiber optic transceiver adapter CBO QSA-QSFP-SFP+-BO for 10GbE and 40GbE

The BlueOptics Fiber optic transceiver adapter CBO QSA-QSFP-SFP+-BO enables interoperability between QSFP and SFP+ interfaces for 10GbE and 40GbE networks. The adapter provides protocol-transparent media conversion where supported by transceivers, allowing QSFP ports to accept SFP+ modules and enabling flexible deployment of copper or fiber optics in mixed-port environments. Designed for data center and enterprise switching environments, this adapter helps integrate legacy and modern equipment without modifying existing cabling infrastructure.

Advantages

The adapter supports transparent insertion of SFP+ modules into QSFP cages, maintaining link integrity for both 10 Gigabit and 40 Gigabit Ethernet where supported. Its compact, passive form factor requires no external power or configuration, simplifying installation and reducing points of failure. Support for both copper and fiber SFP+ modules provides deployment flexibility and cost-efficient upgrades in uplink and aggregation scenarios.

Suitable for

• Data center uplinks and aggregation switches
• Enterprise switch port conversion and interop testing
• Environments requiring mixed QSFP and SFP+ modules
• Temporary link adaptation during hardware migrations

Key specifications

• Supported link speeds: compatibility with 10GbE (SFP+) and 40GbE (QSFP) environments where transceivers and host support QSA mode
• Form factor: QSFP-to-SFP+ passive adapter designed for direct insertion into QSFP cages
• Media support: works with compatible copper and fiber SFP+ modules for multimode or singlemode links
• Protocol handling: media conversion is protocol-transparent when allowed by the connected transceivers
• Power and configuration: passive device — no external power or software configuration required

How to use

Install the adapter by inserting it into the QSFP port on the host device according to the host vendor’s guidelines. Then insert a compatible SFP+ transceiver into the adapter’s SFP+ slot and connect the appropriate fiber or copper cable. Verify link status and speed through the switch or host interface; ensure connected transceivers and equipment support the intended 10GbE or 40GbE operation. For hot-swap capable systems, this procedure can typically be performed without powering down equipment, following standard safety and handling practices for optical modules.

Recommendations

Confirm compatibility with the switch or server vendor regarding QSA/QSFP-SFP+ adapter support and any required firmware. Use SFP+ modules and cables rated for the desired link speed and reach, and follow ESD and handling guidelines for optical transceivers to avoid damage.