Mellanox Technologies MCX516A-GCAT network card Internal Fiber 50000 Mbit/s

Name: Mellanox Technologies MCX516A-GCAT network card Internal Fiber 50000 Mbit/s
Brand: Mellanox
SKU: MCX516A-GCAT
Price: 399.60 USD
Availability: InStock
Rating: 5 (8 reviews)

Mfr. Part #: MCX516A-GCAT

Brand: Mellanox

Condition: Refurbished

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MCX516A-GCAT

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overview

specifications

faqs

reviews

overview

MCX516A-GCAT Overview

MELLANOX MCX516A-GCAT Connectx-5 En Ethernet Adapter Card - Pci Express 3.0 X16 - 2 Port(s) - Optical Fiber Card 50gbe Dual Port Qsfp28 Pcie3.0. General

ConnectX-5 EN Network Interface Card 50GbE Dual-Port QSFP28 PCIe3.0 x16

Wired

PCI Express 3.0 Fiber

50000 Mbit/s

Internal

Summary Description

Mellanox Technologies MCX516A-GCAT. Internal. Connectivity technology: Wired, Host interface: PCI Express, Interface: Fiber. Maximum data transfer rate: 50000 Mbit/s

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specifications

Specifications

Overview

Condition	Refurbished
Brand	Mellanox
Stock	In Stock

Ports & interfaces

Connectivity technology	Wired
Host interface	PCI Express
Interface	Fiber
Fiber ports quantity	2
Fiber optic connector	QSFP, QSFP+, QSFP28
PCI version	3.0

Network

Maximum data transfer rate	50000 Mbit/s

Design

Internal	Yes

Sustainability

Sustainability certificates	RoHS

faqs

Frequently Asked Questions

What are the primary performance specifications of the Mellanox ConnectX-5 MCX516A-GCAT? +

The MCX516A-GCAT is a high-performance dual-port 25GbE adapter. It leverages the PCIe 3.0/4.0 x8 interface to provide low-latency, high-bandwidth connectivity. Designed for demanding data center environments, it delivers advanced hardware offloads for NVMe over Fabrics, overlay networks, and RDMA over Converged Ethernet (RoCE), ensuring efficient data processing and minimized CPU overhead in intensive networking tasks.

Which type of physical connectors are used on the MCX516A-GCAT NIC? +

This network interface card features two SFP28 ports. These ports support 25GbE transceivers and direct attach copper (DAC) cables, providing flexibility for your short-reach or long-range fiber requirements. Using SFP28 interfaces ensures backward compatibility with 10GbE SFP+ modules if your current infrastructure has not yet fully transitioned to 25GbE speeds.

Does the MCX516A-GCAT support RDMA over Converged Ethernet (RoCE)? +

Yes, this card fully supports RoCE, including both RoCE v1 and v2. By bypassing the kernel stack and enabling direct memory access between application buffers, RoCE significantly reduces latency and improves throughput for storage and database applications. This makes the MCX516A-GCAT an ideal choice for high-performance computing clusters and cloud-scale environments where speed is critical.

Is the MCX516A-GCAT compatible with common server virtualization platforms? +

The ConnectX-5 adapter is highly compatible with major virtualization hypervisors, including VMware vSphere, Microsoft Hyper-V, and KVM. It features advanced virtualization offloads such as SR-IOV, which allows for virtual machine-level performance by presenting virtual functions directly to the guest OS, effectively maximizing the efficiency of your virtualized infrastructure.

What are the recommended deployment scenarios for this specific Mellanox adapter? +

The MCX516A-GCAT is perfectly suited for enterprise data centers, cloud infrastructure, and Web 2.0 clusters. It is specifically optimized for workloads that require high-speed storage access, such as NVMe-oF, as well as high-traffic applications that rely on overlay networks like VXLAN or NVGRE. Its robust design ensures reliability for mission-critical enterprise networking needs.

How is the MCX516A-GCAT managed within a server environment? +

Management is handled through standard Mellanox firmware tools and driver stacks compatible with Linux, Windows, and specialized networking operating systems. Users can configure advanced features like traffic steering, QoS, and virtualization settings via standard OS command-line tools or the Mellanox NEO management platform, which provides centralized control for large-scale deployments.

What is the typical power consumption profile of the MCX516A-GCAT? +

The power consumption of the MCX516A-GCAT varies based on traffic load and link speed. Generally, it is designed for maximum energy efficiency per gigabit transferred. By utilizing offloading engines, the card reduces the overall server power draw by offloading networking overhead from the host CPU, which contributes to lower thermal output and power expenditure within high-density rack environments.

Can I use the MCX516A-GCAT in both rack-mount and tower servers? +

The adapter is designed for standard PCIe slots found in most rack-mount and tower servers. The card is typically shipped with a standard-height bracket, but it is modular in design. Before installation, confirm that your server chassis has an available PCIe 3.0 or 4.0 x8 slot and adequate airflow to maintain optimal operating temperatures for the onboard components.

How can I obtain a bulk quote for multiple MCX516A-GCAT units from BuyRouterSwitch.com? +

For large volume orders of the MCX516A-GCAT, we invite you to contact our sales team directly through the 'Request a Quote' button on our product page. Providing your specific project quantities and delivery timelines allows our team to generate a tailored pricing package that aligns with your enterprise budget requirements while ensuring a smooth procurement process.

Why should I choose BuyRouterSwitch.com for my Mellanox networking hardware? +

BuyRouterSwitch.com is a trusted provider of genuine enterprise-grade networking equipment. We specialize in sourcing authentic Mellanox components, ensuring that your infrastructure deployment is backed by reliable hardware. By choosing us, you receive a secure, streamlined ordering experience and dedicated support from industry experts focused on meeting the complex procurement needs of IT departments globally.

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