HPE777429-B21

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

The HPE777429-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 HPESynergy 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.

Product Key Features

• 2 × Flex-20 ports supporting 10/20 GbE per port
  

• PCIe 3.0 ×8 mezzanine interface for Synergy compute modules
  

• QLogic 57840S network processor with 900 MB onboard RAM
  

• Supports up to 9 KB jumbo frames and Converged Enhanced Ethernet (CEE)
  

• Offload features: SR-IOV, NPAR, TOE, LSO/TSO, checksum, MSI-X
  

• Compatible with Synergy 480, 620, 660, 680 Gen9/Gen10 modules

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Reliability & Performance

The support for jumbo frames and advanced virtualization offloads enhances the performance of SAN and server workloads. Built to operate reliably from 0 °C to 55 °C, this adapter adheres to industry standards including IEEE 802.3, 802.1Q, LACP, and RoHS compliance, offering long-term resilience in demanding environments.

Key Features :

• Dual-port 10/20 GbE Converged Enhanced Ethernet

• PCIe 3.0 ×8 Type C mezzanine form factor

• QLogic 57840S network processor, 900 MB RAM

• Jumbo frames support (up to 9 KB MTU)

• Offloads: SR-IOV, NPAR, TOE, LSO/TSO, checksum offload

• CEE support combining Ethernet + FCoE traffic

• Compatible with Synergy 480/620/660/680 Gen9 and Gen10 compute modules

• Low-profile mezzanine card design

• Energy-efficient and compact design

Specification	Details
Model Number	777429-B21
Product Type	Synergy 3820C Dual-Port Converged Network Adapter
Ports	2 × 10/20 GbE Flex-20 ports
Bus Interface	PCI Express 3.0 ×8 mezzanine (Type C)
Data Rate	Up to 20 Gb/s per port, 40 Gb/s aggregate
Network Processor	QLogic 57840S
Memory	900 MB distributed onboard RAM
Jumbo Frame Support	Up to 9 KB MTU
Virtualization & Offload	SR-IOV, NPAR, TOE, TSO/LSO, checksum offload, MSI-X
Protocol Support	Converged Enhanced Ethernet (CEE), FCoE, IEEE 802.1Q/LACP, IPv4/IPv6
Compatible Servers	HPESynergy compute modules (480, 620, 660, 680 Gen9/Gen10)
Operating Temperature	0 °C to 55 °C
Standards Compliance	IEEE 802.3/3u/1Q/ad/ae, RoHS, WEEE, LACP