HPE 777429-B21 

Synergy 3820C Dual‑Port 10/20 GbE Converged Network Adapter

The HPE 777429‑B21 Synergy 3820C is a dual‑port Converged Network Adapter (CNA) offering flexible 10 or 20 GbE connectivity—ideal for virtualized data center infrastructures. Designed specifically for HPE Synergy compute modules, this mezzanine card consolidates Ethernet and Fibre Channel over Ethernet (FCoE) traffic via Flex‑20 technology, reducing cabling and I/O complexity. It enables efficient use of resources while delivering up to 20 Gbps full‑duplex per port. With integrated virtualization features and support for SAN overlay fabrics, this adapter accelerates both storage and network traffic for modern composable infrastructures.

Features

This adapter plugs into Synergy compute modules using the PCIe 3.0 ×8 mezzanine interface. Each of its two ports supports 20 GbE full-duplex (auto-negotiates to 10 GbE), delivering a theoretical aggregate bandwidth of 40 Gbps. Built around the QLogic 57840S processor and paired with 900 MB distributed memory, it supports jumbo frames up to 9 KB, SR‑IOV, NPAR, TCP offload engine (TOE), checksum offload, MSI‑X, and VMDq. It consolidates Ethernet and FC traffic via Converged Enhanced Ethernet (CEE), simplifying hardware deployment and reducing network complexity by up to 50%, with potential cost savings of up to 60%.

Advanced Options

Engineered for high-performance composable fabrics, the Synergy 3820C delivers significant I/O consolidation while maintaining ultra-low-latency and high throughput. Its robust offload engine minimizes CPU overhead during heavy network or storage traffic.