Mellanox MCX314A-BCCT ConnectX-3 Pro Dual Port 40 GbE QSFP+ PCIe Adapter

Name: Mellanox MCX314A-BCCT ConnectX-3 Pro Dual Port 40 GbE QSFP+ PCIe Adapter
Brand: Mellanox
SKU: MCX314A-BCCT
Price: 50.85 USD
Availability: InStock
Rating: 5 (10 reviews)

Mfr. Part #: MCX314A-BCCT

Brand: Mellanox

Condition: Refurbished

Skip to the end of the images gallery

Skip to the beginning of the images gallery

-13%

Was: $58.48

You Save: $7.63 13% OFF

$50.85 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.

MCX314A-BCCT

Quantity:

Extra 5% Off at Checkout

Genuine Guarantee
Volume Pricing Available

Request a Custom Quote

Free ground shipping within the

United States

Government, Federal & Education Procurement

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

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

overview

specifications

faqs

reviews

overview

MCX314A-BCCT Overview

MELLANOX MCX314A-BCCT Connectx-3 Pro Dual Port 40 Gbe Qsfp+ Pcie Adapter.

Need help with MCX314A-BCCT?

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

specifications

Specifications

Overview

Condition	Refurbished
Brand	Mellanox
Stock	In Stock

Physical Characteristics

Form Factor	Plug-in Card
Height	5.6
Width	6.7

I/o Expansions

Expansion Slot Type	Qsfp
Number Of Qsfp Slots	2
Number Of Total Expansion Slots	2

Interfaces/ports

Ethernet Aui	No
Host Interface	Pci Express X8
Network (rj-45)	No
Poe (rj-45) Port	No
Serial Port	No
Usb	No
Xjack	No

Network & Communication

Network Technology	10gbase-x

faqs

Frequently Asked Questions

What are the primary performance specifications for the Mellanox MCX314A-BCCT? +

The MCX314A-BCCT is a high-performance ConnectX-3 Pro adapter featuring dual-port 40GbE connectivity. It utilizes a PCIe 3.0 x8 interface to deliver low latency and high bandwidth, making it ideal for data-intensive applications, high-performance computing, and enterprise-grade virtualization environments that require reliable, high-speed data throughput.

Does the MCX314A-BCCT support RDMA over Converged Ethernet? +

Yes, this card supports RoCE (RDMA over Converged Ethernet), which significantly reduces CPU overhead by allowing direct memory access between servers. This feature is particularly beneficial for high-speed storage networking and clustered databases where minimizing latency and maximizing throughput are critical for overall system efficiency.

What cabling options are compatible with the MCX314A-BCCT? +

This adapter utilizes QSFP+ ports, which support a variety of connection methods, including direct-attach copper (DAC) cables for short-reach, top-of-rack deployments and optical transceivers for longer-distance fiber runs. Users should ensure their selected optics or copper cables meet the specific IEEE standards supported by the ConnectX-3 Pro series for optimal link stability.

How does the ConnectX-3 Pro hardware offload engine affect CPU utilization? +

The MCX314A-BCCT offloads protocol processing tasks—such as TCP/UDP/IP segmentation and checksum calculations—directly onto the NIC hardware. By shifting these compute-intensive tasks away from the host CPU, the card allows your server to dedicate more processing power to core business applications, effectively increasing your total server capacity and performance.

Is the MCX314A-BCCT suitable for virtualization and cloud deployments? +

Absolutely. This adapter is purpose-built for virtualized environments, offering advanced hardware-based I/O virtualization support. It integrates seamlessly with major hypervisors, providing virtual machine-level traffic isolation and traffic shaping, which ensures consistent network performance and enhanced security for multi-tenant cloud infrastructures.

What PCIe bus requirements are necessary for installing this Mellanox card? +

The MCX314A-BCCT is designed for a PCIe 3.0 x8 slot to achieve full 40GbE bandwidth. While it is backward compatible with older PCIe generations, using an older slot may limit the maximum throughput of the interface. We recommend confirming your server’s motherboard supports PCIe 3.0 x8 or higher to avoid potential bottlenecks.

Can the MCX314A-BCCT be used in both low-profile and standard rackmount servers? +

This card typically comes with a standard height bracket installed, but the mechanical design is adaptable for various server chassis. When deploying in a low-profile environment, you may need to ensure you have the appropriate half-height bracket to secure the card properly within your server’s PCIe riser assembly.

Does this NIC require specific firmware updates for compatibility with modern operating systems? +

Keeping the firmware updated is highly recommended for compatibility with modern Linux distributions and Windows Server versions. Mellanox provides regular firmware updates to improve feature sets, ensure compliance with the latest network protocols, and resolve interoperability issues with different switch manufacturers in your data center network.

How can I request a bulk quote for multiple MCX314A-BCCT units? +

For large-scale deployments requiring multiple units, please navigate to our bulk quote request tool on BuyRouterSwitch.com. Our sales team is equipped to provide competitive pricing and availability details tailored to your specific project requirements, ensuring you receive the best possible value for your enterprise infrastructure needs.

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

BuyRouterSwitch.com is a trusted partner for enterprise networking hardware, offering a streamlined procurement process for professional IT teams. We focus on providing authentic, high-quality networking gear and maintain a deep inventory to ensure your projects stay on schedule, backed by a dedicated sales support team ready to assist with large volume orders and complex configuration inquiries.

Reviews