Description
Cisco R2E09A Technical Overview
The Cisco R2E09A is a high-performance 100GBASE-CWDM4 optical transceiver module designed for high-density data center interconnects. This pluggable QSFP28 interface supports 100 Gigabit Ethernet applications across single-mode fiber infrastructure. Engineers utilize the R2E09A to establish reliable, low-latency links between leaf-and-spine switches in demanding enterprise environments. It maintains strict compliance with IEEE 802.3bm standards to ensure seamless interoperability within existing Cisco fabric architectures.
Deployment of the R2E09A facilitates cost-effective multiplexing by utilizing four distinct wavelengths on a single pair of duplex LC connectors. The module is specifically optimized for the Cisco Nexus and Catalyst 9000 series platforms, ensuring consistent hardware abstraction and telemetry reporting. By integrating the R2E09A into your optical layer, you achieve a compact footprint that maximizes port density without compromising signal integrity. This transceiver serves as a critical component for scaling high-bandwidth backbones in modern software-defined networking topologies.
Cisco R2E09A Technical Specifications
- Data Rate: Supports full-duplex 100Gbps throughput for high-bandwidth backbone connectivity.
- Wavelength: Utilizes 1271, 1291, 1311, and 1331 nm channels to enable CWDM4 multiplexing over single-mode fiber.
- Platform Compatibility: Engineered for seamless integration with Cisco Nexus 9000 and Catalyst 9000 series switches.
- Latency: Provides ultra-low, deterministic latency performance essential for high-frequency trading and distributed computing clusters.
Buy or Sell Cisco R2E09A
- For Buyers: ROC Telecom provides rigorously tested, Cisco-compatible hardware for rapid network expansion or as a mission-critical spare. Our field-tested units ensure uptime without OEM lead times.
- For Sellers: We offer competitive buyback quotes, instant payment, and prepaid shipping for decommissioned R2E09A units and other Cisco surplus.

