Cisco QSFP-40G-SR4 40GBASE-SR4 QSFP+ Multimode Optical Transceiver Module 10-2672-02 The Cisco QSFP-40G-SR4 (Part Number: 10-2672-02) is a high-performance 40GBASE-SR4 QSFP+ optical transceiver designed for high-density data center switches and routers. Utilizing parallel multimode fiber (MMF) technology with 4 independent 10Gbps lanes operating at 850nm, it features a standard MPO-12 interface. It supports 40GBASE-SR4 link lengths up to 100 meters on OM3 MMF and 150 meters on OM4 MMF. Additionally, it supports 4x10G breakout mode, extending 10G connectivity up to 300 meters on OM3 and 400 meters on OM4 fibers. Factory-calibrated by Cisco, it provides a highly cost-effective and flexible short-reach solution for data center leaf-spine architectures and enterprise aggregation networks.
Model / Product Code
QSFP-40G-SR4
Connector
MPO-12 / MTP-12
Max Cable Distance
100 m (OM3 MMF) / 150 m (OM4 MMF)
Safety Compliance
Class 1 Laser (Compliant with 21 CFR 1040.10)
Standard
IEEE 802.3ba (40GBASE-SR4) / IEEE 802.3ae (10GBASE-SR)
DOM (Digital Monitoring)
Supported
Operating Temperature
0°C ~ 70°C
Typical Applications
- Data Center Spine-Leaf 40G Short-Reach Links
- 40G → 4×10G Breakout Connections
- Enterprise Campus Network 40G Aggregation Connections
- Cisco QSFP+ Port Switch/Router 40G Uplink Ports
- High-Speed Server and Storage Network Interfaces
Product Highlights
1.Flexible 40G/4×10G Operation & Breakout Support
- Supports either a single aggregated 40Gbps link or breaking out into four independent 10GBASE-SR channels (up to 300m on OM3 / 400m on OM4). This maximizes port utilization on high-end switches and provides an outstanding return on investment (ROI) by seamless interoperability with legacy 10G networks.
2.Cost-Effective Short-Reach Connectivity
- Optimized for widely deployed 850nm parallel multimode fiber (MMF) networks, supporting up to 100 meters on OM3 and 150 meters on OM4. It eliminates the need for expensive single-mode optics and cabling for intra-data center and short-range infrastructure, dramatically reducing capital expenses.
3.Standard MPO-12 Interface for Simplified Management
- The universal MPO-12/MTP-12 connector matches mainstream parallel fiber patch cables perfectly. It simplifies breakout deployment, speeds up installation, and streamlines on-site cable management in high-density enterprise environments.
4.Compact QSFP+ Form Factor for High Density
- The small footprint enables ultra-high port density on data center switches and routers. This allows service providers and enterprises to efficiently scale 40G uplink resources without consuming excessive, valuable rack space.
5.Genuine Cisco Quality & Real-Time DOM
- Precision-engineered to Cisco’s strict hardware standards (Part Number: 10-2672-02). It guarantees 100% hot-swappable installation and supports standard SFF-8436 Digital Diagnostics Monitoring (DOM) for proactive link performance tracking and low maintenance overhead.