Mellanox MCX545A-CCUN ConnectX-5 EN network Interface Card For OCP2.0 Type 2 with Host Management 100GbE Single-port QSFP28 PCIe3.0 x16 UEFI Enabled No Bracket

Name: Mellanox MCX545A-CCUN ConnectX-5 EN network Interface Card For OCP2.0 Type 2 with Host Management 100GbE Single-port QSFP28 PCIe3.0 x16 UEFI Enabled No Bracket
Brand: Mellanox
SKU: MCX545A-CCUN
Price: 141.36 USD
Availability: InStock
Rating: 5 (8 reviews)

Mfr. Part #: MCX545A-CCUN

Brand: Mellanox

Condition: Refurbished

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MCX545A-CCUN

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overview

specifications

faqs

reviews

overview

MCX545A-CCUN Overview

MELLANOX MCX545A-CCUN Connectx-5 En Network Interface Card For Ocp2.0 Type 2 With Host Management 100gbe Single-port Qsfp28 Pcie3.0 X16 Uefi Enabled No Bracket

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specifications

Specifications

Overview

Condition	Refurbished
Brand	Mellanox
Stock	In Stock

Physical

Size	3.07 In. X 4.33 In (78.00mm X 110.05mm)
Connector	Single Qsfp28 Ethernet (copper And Optical)

Protocol Support

Ethernet	100gbase-cr4, 100gbase-kr4, 100gbase-sr4, 50gbase-r2, 50gbase-r4,40gbase-cr4,40gbase-kr4, 40gbase-sr4, 40gbase-lr4, 40gbase-er4, 40gbase-r2,25gbase-r, 20gbase-kr2, 10gbase-lr,10gbase-er, 10gbase-cx4, 10gbase-cr,10gbase-kr, Sgmii, 1000base-cx, 1000base-kx, 10gbase-sr
Data Rate	1/10/25/40/50/100 Gb/s
Pci Express Gen3	Serdes @ 8.0gt/s (respectively), 16 Lanes (2.0 And 1.1 Compatible)

Power And Cable Type

Typical Power	14.48w , Cable: Passive Cables
Maximum Power	21.07w , Cable: 1.5w Active Cables
Maximum Power Available Through Qsfp28 Port	3.5w
Voltage	3.3vaux, 5vaux, 12v

temperature

- Operational	0°c To 55°c
- Non-operational	-40°c To 70°c
Humidity	90% Relative Humidity
Altitude (operational)	3050m

faqs

Frequently Asked Questions

What are the primary performance capabilities of the Mellanox MCX545A-CCUN ConnectX-5 adapter? +

The MCX545A-CCUN is a high-performance adapter featuring dual 100GbE ports. It leverages advanced offload technologies, including hardware support for RDMA over Converged Ethernet (RoCE), DPDK, and SR-IOV. This combination significantly reduces CPU overhead, making it an ideal choice for data centers requiring low latency and high throughput in compute-intensive environments.

What type of physical connectivity and optical modules does this specific NIC support? +

This adapter utilizes QSFP28 interface ports, which are designed to support 100Gb/s connectivity. It is compatible with a variety of QSFP28 optical transceivers and Direct Attach Copper (DAC) cables, allowing for flexible reach requirements within the rack or across the data center floor, depending on the specific medium used.

How does the ConnectX-5 architecture improve virtualization performance? +

The MCX545A-CCUN excels in virtualized environments by providing sophisticated SR-IOV capabilities and multi-host support. By offloading the virtual switch data path directly to the hardware, the adapter allows virtual machines to achieve near-native performance while minimizing the processing load on the hypervisor host server.

Is the MCX545A-CCUN compatible with standard PCIe expansion slots? +

Yes, this card features a PCIe Gen4 x16 interface. While it is fully compatible with PCIe Gen4 slots to maximize bandwidth, it is also backward compatible with PCIe Gen3 slots. This ensures flexibility when deploying the hardware across a diverse range of server generations within your existing infrastructure.

What are the typical deployment scenarios for this 100GbE network card? +

This card is optimized for high-performance computing (HPC), cloud-native applications, and heavy database workloads. Its ability to provide ultra-low latency and high message rates makes it a standard choice for software-defined storage, large-scale web-tier servers, and complex financial modeling environments where packet processing speed is critical.

Does this network card support advanced traffic management features? +

The card includes comprehensive hardware offloads for NVMe-over-Fabrics, which drastically accelerates storage access times. Additionally, it supports intelligent flow steering and advanced congestion control mechanisms, ensuring that network traffic is managed efficiently even during high-burst scenarios, maintaining consistent application delivery without manual intervention.

How do I manage and configure the firmware on the MCX545A-CCUN? +

Configuration and firmware management for the Mellanox ConnectX-5 series are handled through standard industry tools such as MFT (Mellanox Firmware Tools). These utilities allow administrators to perform updates, modify device parameters, and manage port settings remotely, facilitating seamless integration into automated deployment pipelines and centralized IT management frameworks.

What is the importance of RoCE support for this specific NIC? +

RoCE is a vital feature for this adapter, enabling direct memory access between servers without involving the operating system or CPU. This capability is essential for reducing latency in clustered environments and high-speed storage networks, allowing your applications to process data significantly faster than traditional TCP/IP networking stacks would allow.

How can I obtain a bulk quote for the MCX545A-CCUN through BuyRouterSwitch.com? +

For organizations looking to procure multiple units, please utilize the bulk inquiry portal on our website. Our dedicated sales team monitors these requests daily to provide competitive pricing and availability details tailored to your project requirements, ensuring that you receive the best value for your large-scale network infrastructure upgrades.

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

BuyRouterSwitch.com specializes in providing authentic enterprise-grade networking equipment. We focus on streamlining the procurement process for IT professionals by offering transparent product data, efficient order processing, and a professional sales staff ready to assist with your specific infrastructure requirements and large volume order needs.

Reviews