Multi-Vendor Compatible QSFP-SFP-CONV Adapter Module: QSFP-SFP-CONV

Our EDGEOPTIC QSFP-SFP-CONV is a multi-vendor compatible QSFP+ to SFP+ adapter module designed to enable smooth migration from quad-lane 40G ports to single-lane 10G optical transceivers. The QSFP-SFP-CONV adapter converts QSFP+ ports to accept SFP+ modules, supporting data rates from 1.25 to 10.31 Gbps for 10G Ethernet and legacy Gigabit Ethernet applications.

The adapter module provides cost-effective network migration flexibility by allowing lower-speed SFP+ transceivers to operate in 40G QSFP+ ports. A 40G QSFP+ port supports four electrical lanes, each transmitting at 10 Gbps for aggregate 40G capacity. The QSFP-SFP-CONV adapter utilizes the first lane of the QSFP+ interface, enabling single-lane 10 Gbps or 1.25 Gbps operation depending on the inserted SFP+ transceiver capabilities. This approach is particularly valuable when data-communication systems are upgraded to higher-capacity equipment but certain connections require only 10G bandwidth.

The QSFP-SFP-CONV adapter is hot-pluggable and plugs directly into standard QSFP+ cages, presenting an SFP+ receptacle for transceiver insertion. The electrical interface conforms to QSFP+ MSA with SFF-8436 specifications on the host side and SFP+ MSA with SFF-8431 specifications on the module side. Maximum power consumption is only 0.25W, making this adapter suitable for high-density deployments where thermal management is critical.

Full DDM/DOM (Digital Diagnostic Monitoring) pass-through is supported, enabling real-time monitoring of inserted SFP+ transceiver parameters through the QSFP+ host interface. Network management systems can access transmitted and received optical power levels, module temperature, laser bias current, and supply voltage information for comprehensive operational visibility.

The module operates from a single +3.3V power supply within the standard 0 to 70°C temperature range, suitable for deployment in controlled data center and enterprise network environments. The mechanical design ensures proper SFP+ module retention and adequate thermal contact for reliable operation.

Standards compliance includes CE marking, RoHS certification, and adherence to QSFP+ MSA, SFP+ MSA, and SFF-8431 requirements. This comprehensive compliance ensures reliable interoperability across diverse network equipment from multiple vendors, enabling deployment in multi-vendor network environments with confidence.

Typical deployment scenarios include network infrastructure upgrades where high-capacity switches with QSFP+ ports must connect to existing 10G infrastructure, mixed-speed deployments requiring flexible bandwidth allocation, and situations where QSFP+ ports would otherwise remain unused due to lack of 40G connectivity requirements. The adapter enables optimal port utilization and cost-effective network design by allowing 10G connectivity through 40G-capable ports.

The multi-rate capability supporting both 10 Gigabit Ethernet at 10.31 Gbps and Gigabit Ethernet at 1.25 Gbps provides operational flexibility for mixed-speed network deployments. Because our focus is providing top quality service, we perform comprehensive quality testing including electrical interface validation and mechanical inspection before delivery of our products.