QSFP-40/100-SRBD — QSFP28 40/100 Gbps

The QSFP-40/100-SRBD from Cisco is a dual-rate QSFP28 transceiver capable of operating at either 40 Gbps or 100 Gbps over multimode fiber (MMF) with a reach of up to 150 m. Unlike QSFP SR4 modules that require parallel MPO cabling, it uses a standard duplex LC connector, simplifying integration into existing server rooms without any specialized parallel cabling.

This dual-rate module is ideal for data center teams looking to progressively migrate their infrastructure from 40G to 100G without replacing fiber cabling or patch panels. The operating temperature varies by speed: +10 to +70 °C in 40G mode and +10 to +60 °C in 100G mode. Genuine Cisco hardware, manufacturer warranty.