Lenovo 4XC7A08239

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.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

Learn more

Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

Learn more

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

Learn more