MCX516A-CCAT - Mellanox Network Cards

Name: MCX516A-CCAT - Mellanox Network Cards
Brand: Mellanox
SKU: MCX516A-CCAT
Price: 325.50 USD
Availability: InStock
Rating: 5 (17 reviews)

Mfr. Part #: MCX516A-CCAT

Brand: Mellanox

Condition: Refurbished

MCX516A-CCAT

Was: $350.00

You Save: $24.50 7% OFF

$325.50 In Stock - Ships Worldwide Order by 2:00 PM ET for Overnight Shipping
Warranty: 90-day return/replacement

Click here to read our Return Policy for returns/replacements.

Quantity:

Extra 5% Off at Checkout

Genuine Guarantee
Volume Pricing Available

Request a Custom Quote

Free ground shipping (upto 10 LBS) within the

United States

Government, Federal & Education Procurement

We support quotes, POs, stock docs, and compliance invoicing.

Email: support@buyrouterswitch.com SAM.gov Vendor CAGE Code : 23P86

overview

FAQs

reviews

overview

MCX516A-CCAT Overview

ConnectX-5 EN supports two ports of 100Gb Ethernet connectivity, sub-600 ns latency, and very high message rate, plus PCIe switch and NVMe over Fabric offloads, providing the highest performance and most flexible solution for the most demanding applications and markets: Machine Learning, Data Analytics, and more.

HPC Environments
ConnectX-5 delivers high bandwidth, low latency, and high computation efficiency for high performance, data intensive and scalable compute and storage platforms. ConnectX-5 offers enhancements to HPC infrastructures by providing MPI and SHMEM/PGAS and Rendezvous Tag Matching offload, hardware support for out-of- order RDMA Write and Read operations, as well as additional Network Atomic and PCIe Atomic operations support.

ConnectX-5 EN utilizes RoCE (RDMA over Converged Ethernet) technology, delivering low-latency and high performance. ConnectX-5 enhances RDMA network capabilities by completing the Switch Adaptive-Routing capabilities and supporting data delivered out-of- order, while maintaining ordered completion semantics, providing multipath reliability and efficient support for all network topologies including DragonFly and DragonFly+.

ConnectX-5 also supports Burst Buffer offload for background checkpointing without interfering in the main CPU operations, and the innovative transport service Dynamic Connected Transport (DCT) to ensure extreme scalability for compute and storage systems.

100GbE Dual-Port QSFP28 PCIe3.0 x16 Tall Bracket ROHS R6

Manufacturer: Mellanox Technologies Ltd

Manufacturer Part Number: MCX516A-CCAT

Manufacturer Website Address: http://www.mellanox.com

Brand Name: Mellanox

Product Line: ConnectX-5 EN

Product Model: MCX516A-CCAT

Product Name: ConnectX-5 EN MCX516A-CCAT 100Gigabit Ethernet Card

Product Type: 100Gigabit Ethernet Card

Wired

PCI Express Fiber

100000 Mbit/s

Internal

Summary Description

Mellanox Technologies MCX516A-CCAT, Internal, Wired, PCI Express, Fiber, 100000 Mbit/s

Need help with MCX516A-CCAT?

Get pricing, availability, lead time, and compatible options from our team. Chat with us live or email support@buyrouterswitch.com

FAQs

Frequently Asked Questions

What are the primary performance advantages of the Mellanox ConnectX-5 MCX516A-CCAT in data centers? +

The MCX516A-CCAT delivers high-bandwidth 100GbE throughput via dual QSFP28 ports, significantly reducing latency for data-intensive workloads. By utilizing the PCIe 3.0 x16 interface, it provides the necessary bus width to handle extreme traffic loads, making it an ideal choice for high-performance computing, cloud-native applications, and intensive storage networking where throughput efficiency and low CPU overhead are critical requirements.

Does the MCX516A-CCAT support standard server rack deployments? +

Yes, this card ships with a tall bracket (full-height) configuration, ensuring it is ready for deployment in standard 2U or larger rack-mount servers. The PCIe 3.0 x16 form factor is industry-standard, offering broad compatibility with mainstream x86 server motherboards designed for high-density enterprise networking environments.

What kind of transceiver modules are compatible with the QSFP28 ports on this NIC? +

The dual QSFP28 ports on the MCX516A-CCAT are designed to support a wide range of 100GbE optical transceivers and Direct Attach Copper (DAC) cables. This versatility allows you to choose the appropriate reach—whether short-range multimode fiber for in-rack connections or long-range single-mode optics for data center interconnects—to suit your specific physical infrastructure requirements.

How does the ConnectX-5 architecture improve CPU utilization during high-speed networking tasks? +

ConnectX-5 technology features advanced offload engines, including hardware support for RDMA over Converged Ethernet (RoCE) and overlay network encapsulation offloads like VXLAN and NVGRE. These features shift processing tasks from the host CPU to the adapter, effectively freeing up compute resources to run application-level processes, which is essential for maximizing overall server efficiency in virtualized environments.

Can the MCX516A-CCAT be utilized for storage-heavy workloads like NVMe-over-Fabrics? +

Absolutely. The MCX516A-CCAT is a premier choice for NVMe-over-Fabrics (NVMe-oF) deployments. Its high-throughput 100GbE capacity and low-latency performance characteristics are essential for maintaining the performance profile of NVMe storage arrays. By leveraging RoCE, this adapter ensures that storage traffic is handled with minimal latency, providing a near-local storage experience over the network.

Is this Mellanox card suitable for high-frequency trading or latency-sensitive applications? +

The ConnectX-5 platform is specifically engineered for ultra-low latency, making it a gold standard for financial services and high-frequency trading (HFT) environments. Its robust hardware-based acceleration and efficient packet processing pipeline ensure minimal jitter and consistent performance, meeting the stringent timing demands required by modern low-latency trading infrastructure.

What is the physical interface requirement for installing the MCX516A-CCAT? +

To achieve the full performance capabilities of this 100GbE adapter, you must install the card into a PCIe 3.0 x16 slot. While the card may physically fit into smaller slots, bandwidth will be restricted, so a full x16 Gen3 slot is required to ensure the adapter can handle the dual-port 100GbE throughput without bottlenecking at the host bus level.

Are there specific driver requirements for managing the MCX516A-CCAT in a Linux environment? +

Mellanox provides robust support through the Mellanox OpenFabrics Enterprise Distribution (MOFED) drivers, which are optimized for performance and stability across most major Linux distributions. For best results, we recommend verifying your kernel version against the latest firmware/driver release notes provided by the manufacturer to ensure full feature parity and optimal integration with your specific operating system environment.

How can I obtain a formal bulk quote for the MCX516A-CCAT from BuyRouterSwitch.com? +

If you are planning a large-scale deployment and require multiple units, our sales team at BuyRouterSwitch.com is ready to assist. Simply contact us through our website's quote request form or reach out directly to our sales department. We specialize in volume procurement and can provide aggressive pricing tailored to your specific project requirements and quantity needs.

Why should IT procurement professionals choose BuyRouterSwitch.com for Mellanox networking hardware? +

BuyRouterSwitch.com is a trusted source for authentic enterprise-grade networking equipment. We focus on delivering genuine Mellanox hardware with streamlined procurement processes, ensuring that your data center receives exactly what is required for mission-critical infrastructure. Our commitment to secure ordering and dedicated support makes us the preferred partner for procurement managers seeking reliability, competitive lead times, and authentic, high-quality components.

Reviews

Erick Kelly

Posted on

Verified Buyer