Overview
The Arista
DCS-7280SR3K-48YC8A-R is a high-performance
25/100GbE data center switch featuring
48 × 25GbE SFP28 ports and 8 × 100GbE QSFP28 uplinks, designed for high-density leaf deployments in modern routed fabrics. The
-R suffix indicates a
rear-to-front airflow design, typically used for hot-aisle containment and rear-exhaust rack layouts. BrightStar Systems supplies professionally validated refurbished units that are ready for production deployment.
Key Hardware Characteristics
- Port configuration: High-density 25/100GbE switching, typically deployed with 25GbE SFP28 downlinks and 100GbE QSFP28 uplinks (exact supported optics and speeds depend on EOS and transceiver or cable selection).
- R3K platform class: The 7280R3K family is commonly selected where additional platform resources are required for large-scale fabrics and feature-rich EOS deployments (confirm requirements for your use case).
- Network OS: Runs Arista EOS for automation, telemetry, and consistent operations across Arista switching platforms.
- Hardware reliability: Designed for data center operation with redundant, field-replaceable components (power supplies and fan modules vary by configuration).
Operational Use Cases
- Leaf role in 25/100GbE spine-leaf architectures for enterprise, cloud, and service provider data centers
- High-density server-facing 25GbE with 100GbE uplinks for aggregation and fabric interconnect
- VXLAN/EVPN-style routed fabrics and large east-west traffic environments (feature availability depends on EOS version and licensing)
Related Variant
Front-to-rear airflow variant:
DCS-7280SR3K-48YC8A-F
Additional Technical Resources
