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The Cisco QSFP-40G-SR-BD is a high-performance 40 Gigabit Ethernet Bi-Directional (BiDi) QSFP+ optical transceiver designed to deliver reliable, high-speed data transmission while maximizing the value of existing fiber infrastructure. Operating over standard duplex multimode fiber (MMF), this module supports transmission distances of up to 100 meters on OM3 multimode fiber and up to 150 meters on OM4 multimode fiber, making it an ideal solution for enterprise campus networks, data centers, cloud computing environments, storage area networks (SANs), and high-density network deployments. By utilizing BiDi technology, the QSFP-40G-SR-BD enables 40G connectivity over two LC fiber strands instead of the traditional eight-fiber MPO connection, significantly reducing cabling complexity, lowering deployment costs, and simplifying network migration from 10 Gigabit to 40 Gigabit Ethernet. Fully compliant with IEEE 40GBASE-SR-BD standards and supporting hot-swappable operation, this transceiver offers seamless integration with a wide range of compatible Cisco switches, routers, and networking platforms. It features low power consumption, excellent signal integrity, stable optical performance, and enterprise-grade reliability to ensure continuous network availability in demanding business environments. The Cisco QSFP-40G-SR-BD is manufactured to strict quality standards and undergoes comprehensive testing for compatibility, performance, and durability, providing dependable operation in mission-critical applications. It is an excellent choice for organizations seeking a cost-effective, scalable, and energy-efficient 40G optical networking solution that delivers outstanding performance while protecting existing multimode fiber investments. Whether deployed for data center aggregation, enterprise backbone connectivity, virtualization, cloud services, or high-bandwidth applications, the Cisco QSFP-40G-SR-BD offers exceptional transmission efficiency, simplified infrastructure upgrades, and long-term investment value for modern network architectures.
QSFP-40G-SR-BD
Cisco
Original New
1 year
| Quantity: | |
|---|---|
Item | Official Specification |
|---|---|
Model Part Number | QSFP-40G-SR-BD |
Product Type | 40GBASE-SR BiDi QSFP+ Optical Transceiver Module |
Form Factor | QSFP+ (SFF-8436 MSA Compliant) |
Standard Compliance | IEEE 802.3ba 40 Gigabit Ethernet, QSFP MSA, XLPPI Electrical Spec |
Total Aggregate Bandwidth | 40 Gbps (2 × 20 Gbps BiDi optical channels) |
Per Electrical Lane Rate | 10.3125 Gbps, 64b/66b line encoding |
Optical Interface | Duplex LC Connector, 2-strand Multimode Fiber (MMF) |
Operating Wavelength | Tx1/Rx2: 850 nm; Tx2/Rx1: 900 nm |
Supported Fiber Type | OM3 Laser-Optimized Multimode Fiber, OM4/OM5 Multimode Fiber |
Max Transmission Distance | 100 m over OM3 MMF; 150 m over OM4/OM5 MMF |
Optical Loss Budget | 1.9 dB base budget + 0.7 dB additional connector margin (BER 1E-12) |
Digital Diagnostics | DOM/DDM Digital Optical Monitoring Support |
Power Supply | Single +3.3 V DC Power Supply |
Typical Power Consumption | 1.5 W |
Hot-Swappable | Yes, plug-and-play without power shutdown |
Supported Protocols | 40G Ethernet, OTU3, OTU3e2, FCoE |
Compatible Cisco Platforms | Catalyst 9000, Catalyst 1300, Nexus 9000/3000, Meraki MS Series Switches |
Operating Temperature Range | Commercial: 0°C to 70°C |
Storage Temperature | -40°C to 85°C |
Humidity | 5% to 95% non-condensing |
Regulatory Certifications | RoHS 6/6 Compliant, CE, FCC, UL |
Warranty | Cisco Standard 1-Year Hardware Warranty |
Core Application Scenarios | Data Center 40G Inter-switch Uplinks, Enterprise Core Network, Existing 10G Duplex MMF Infrastructure Upgrade to 40G, Server Rack Aggregation |
