Arista DCS‑7280CR3K‑32D4‑F – 32× 100G QSFP28 + 4× 400G QSFP‑DD Deep‑Buffer Universal Spine Switch Router (Front‑to‑Back Airflow)

The Arista DCS‑7280CR3K‑32D4‑F is a high‑performance 100G/400G universal spine switch router built for modern cloud, enterprise, and carrier‑grade networks. As part of the Arista 7280R3 Series, it delivers exceptional routing scale, deep buffers, and wire‑speed performance for demanding workloads including AI/ML clusters, IP fabrics, DCI, and carrier edge routing.

Equipped with 32 × 100G QSFP28 ports and 4 × 400G QSFP‑DD uplinks, the 7280CR3K‑32D4‑F supports flexible breakout options across 10/25/50/100/400G speeds, enabling seamless migration and high‑density aggregation. With up to 4.8 Tbps throughput, 2 Bpps forwarding, and ultra‑deep buffers up to 16GB, this platform excels in congestion‑heavy environments such as storage fabrics, spine layers, and service provider edge deployments.

Designed with front‑to‑back airflow, 1+1 redundant power supplies, and N+1 hot‑swappable fans, the switch integrates cleanly into hot‑aisle/cold‑aisle data center designs. Powered by Arista EOS®, it supports advanced routing, EVPN, segment routing, MPLS, CloudVision®, and carrier‑grade timing (PTP, SyncE).

Key Features

• 32 × 100G QSFP28 ports
• 4 × 400G QSFP‑DD uplinks
• Up to 4.8 Tbps throughput & 2 Bpps forwarding
• Ultra‑deep packet buffers (up to 16GB)
• Wire‑speed L2/L3 forwarding
• Front‑to‑back airflow (‑F)
• Redundant, hot‑swappable PSUs and fans
• Advanced routing: MPLS, Segment Routing, EVPN, VXLAN
• Carrier‑grade timing: PTP, SyncE
• Ideal for universal spine, carrier edge, DCI, AI/ML fabrics, and high‑density routing environments

What’s Included

• Arista DCS‑7280CR3K‑32D4‑F Switch
• Hot Swappable Fans and Dual Power Supplies
• Rack Mount Kit
• Power Cords
• Console Cable