Lenovo 4XC7A08239 10GB 2P 5720 1GB 2P OCP Dual-Port 10GBASE-T Network Adapter

Overview

The Lenovo 4XC7A08239 is a dual-port 10GBASE-T network adapter designed for servers with an Open Compute Project 3.0 mezzanine slot. It delivers high-speed wired connectivity over copper cabling, leveraging the Broadcom 57416 controller to meet IEEE 802.3an standards. This adapter is ideal for Lenovo ThinkSystem and ThinkAgile servers that require reliable 10 Gb Ethernet performance in demanding data center environments.

With features like checksum offload, iSCSI boot, and RDMA over Converged Ethernet, it reduces CPU load and supports low-latency data transfers. Its support for virtualization and overlay networking protocols makes it well suited for modern server clusters and multi-tenant cloud setups.

Key features

• Two 10GBASE-T Ethernet ports providing fast and stable network connections over standard copper cables
• Open Compute Project 3.0 mezzanine interface ensuring seamless integration with compatible server platforms
• Checksum offload reduces host CPU workload, improving overall system efficiency
• iSCSI boot capability enables diskless server deployments, simplifying storage management
• RDMA over Converged Ethernet support for low-latency, high-throughput data paths ideal for storage and virtualization
• Single Root I/O Virtualization allows virtual machines to have dedicated network functions, enhancing performance isolation
• Support for VXLAN and NVGRE tunneling protocols facilitates scalable overlay networks across routed environments
• Jumbo frame support up to 9000 bytes increases throughput efficiency for large data transfers
• Compatibility with both IPv4 and IPv6 protocols ensures flexible networking in diverse infrastructures

Key specs

• Controller: Broadcom 57416
• Ports: 2 x 10GBASE-T Ethernet
• Interface: Open Compute Project 3.0 mezzanine slot
• Standards: IEEE 802.3an and related Ethernet standards
• Jumbo frame size: up to 9000 bytes
• Network protocols supported: IPv4, IPv6, VXLAN, NVGRE

Connectivity and compatibility

This adapter connects via an Open Compute Project 3.0 mezzanine slot, designed specifically for Lenovo ThinkSystem and ThinkAgile servers. It uses standard copper cabling for 10 Gb Ethernet, making it compatible with existing network infrastructure without requiring fiber optics. The support for both IPv4 and IPv6 ensures it fits into modern and legacy network environments alike.

Performance and reliability

Built on the Broadcom 57416 controller, the adapter delivers consistent 10 Gb Ethernet speeds with low latency. Offloading checksum calculations from the host CPU helps maintain server responsiveness under heavy network loads. The inclusion of RDMA over Converged Ethernet further enhances data transfer speeds, which is critical for storage and virtualization workloads.

Ideal uses and environments

This network adapter is a strong choice for data centers running virtualization clusters, hyperconverged infrastructure, or storage-focused servers. It supports environments that require high throughput and low latency, such as private clouds and multi-tenant setups. Its compatibility with overlay networking protocols makes it suitable for complex network segmentation and scaling over copper cabling.