Broadcom BCM957416N4160C
Product Overview
The BCM957416N4160C (marketed as NetXtreme-E N210Gbt) is a dual-port 10GBASE-T OCP 3.0 mezzanine network adapter powered by Broadcom BCM57416 enterprise Ethernet controller, compliant strictly with Open Compute Project OCP 3.0 small-form-factor specification for hyperscale rack servers, cloud nodes, virtualization hosts and storage systems. It delivers dual 10 Gigabit copper RJ45 ports supporting 10GBASE-T and backward compatible 1000BASE-T over Cat6/Cat6A/Cat7 twisted pair cabling; Cat5e cable works for gigabit speed only. Built on PCIe 3.0 x8 host interface, this card integrates comprehensive hardware offloading, virtualization acceleration, RoCEv2 and DCB capabilities, reducing host CPU overhead under heavy virtualized, storage and cloud workloads. The suffix N4160C defines pure OCP3 mezzanine form factor without standard PCIe bracket assembly.
Core Electrical & Interface Specifications
- Manufacturer Part Number: BCM957416N4160C
- Integrated Controller: Broadcom BCM57416 NetXtreme-E Series dual-channel 10GBASE-T MAC+PHY SoC
- Host Bus Interface: PCIe 3.0 x8 (8.0 GT/s per lane); auto-negotiates down to PCIe 2.0 / PCIe 1.1 x8/x4/x2/x1
- Physical Ports: 2 × RJ45 copper ports
- Supported Ethernet Standards:
- 10GBASE-T (IEEE 802.3an) full-duplex
- 1000BASE-T (IEEE 802.3ab) auto-fallback
- IEEE Energy Efficient Ethernet (EEE) power saving mode
- Maximum Virtual Functions (SR-IOV): Up to 128 VFs across dual ports
- Typical Power Consumption: 14.6W under full dual-port line-rate load
- Form Factor: OCP 3.0 small form factor mezzanine card (no standard FH/LP PCI bracket)
- Cooling: Passive aluminum heatsink design for rack forced-air cooling environments
- Country of Origin: Malaysia
Key Acceleration & Protocol Features
1.Complete Stateless Hardware Offloading Suite
Full TCP/UDP/IP checksum offload, TCP Segmentation Offload (TSO), Large Receive Offload (LRO), VLAN tagging/untagging, receive-side scaling (RSS) to drastically cut host CPU utilization for high-throughput packet forwarding.
2.TruFlow Virtual Switch & Tunnel Offload Engine
Line-rate hardware acceleration for VXLAN, NVGRE, Geneve and GRE tunnel encapsulation/decapsulation; offloads hypervisor vSwitch processing to free CPU cores for VM application workloads, ideal for cloud NFV and virtual data center environments.
3.Enterprise Storage & RDMA Support
Native RoCEv2 (RDMA over Converged Ethernet), SMB Direct acceleration and DCB protocol suite including PFC, ETS, QCN and DCBx, optimized for NVMe-oF, iSCSI and SMB storage traffic with low latency and lossless fabric performance.
4.Advanced Virtualization Capabilities
SR-IOV with strict VF isolation, Function Level Reset (FLR), multi-queue support and port partitioning; enables direct device assignment to virtual machines for near-native network performance without hypervisor overhead.
5.Copper Cable Diagnostic & Auto-Correction
On-chip cable diagnostics automatically detect and correct pair swap, polarity inversion and cable skew; supports auto-negotiation and IEEE fast link retrain for stable long-distance copper 10G transmission up to 100 meters with Cat6A cabling.
6.Firmware Security & Remote Manageability
Hardware root-of-trust secure firmware boot and signature verification; fully managed via Broadcom Advanced Control Suite (BACS), CLI tools, and out-of-band server management platforms for remote firmware flashing, health monitoring and fault diagnostics.
Physical & Environmental Parameters
- OCP 3.0 standard mezzanine dimension compliant
- Operating Ambient Temperature: 0°C ~ 55°C under standard data center airflow (250 LFM minimum)
- Storage Temperature: -40°C ~ +85°C
- Relative Humidity: 5% ~ 95% non-condensing
- Vibration & Shock: Compliant with IEC 60068-2 industrial server vibration specifications
- Pollution Degree 2; designed for clean data center cabinet environments only
Compatible Operating Systems
- Windows Server 2016 / 2019 / 2022
- RHEL, Ubuntu, CentOS, SUSE and all mainstream Linux distributions
- VMware ESXi 6.x / 7.x / 8.x
- FreeBSD, Proxmox VE and specialized hyper-converged storage OS
- Supports UEFI boot environment for modern server platforms
Typical Industrial & Data Center Applications
- Hyperscale cloud OCP rack server front-end networking
- Virtualization hypervisor nodes, VMware vSphere and KVM clusters
- Hyper-converged infrastructure (HCI), vSAN and ZFS storage servers
- Enterprise storage networking, iSCSI and NVMe-oF disaggregated storage nodes
- High-performance computing (HPC), media transcoding and big-data analytics servers
- Direct replacement for older OCP 3.0 dual-port 10GBASE-T adapters for server hardware refresh projects
Global Certifications & Compliance
- UL/cULus certified, FCC Class B electromagnetic compliant
- CE marked, fully RoHS 2011/65/EU compliant
- PCI-SIG PCIe 3.0 compliant; IEEE Ethernet standard fully validated
- MSL Level 1 moisture sensitivity rating for unrestricted storage and handling
Lifecycle & Warranty Information
- Broadcom Official Lifecycle Status: End of New Production; limited spare part and repair support remains available globally; firmware updates still provided for critical security patches
- Original factory sealed new units carry standard 3-year Broadcom enterprise warranty
- Strict OCP3 mezzanine pinout compatibility; directly drop-in compatible with all standard OCP 3.0 server motherboards without chassis modification
- Fully backward compatible with PCIe 2.0 OCP backplanes with reduced maximum aggregate throughput accordingly.
On Jul 11, 2026 at 00:23:05 PDT, seller added the following information:
