Mellanox ConnectX3 40GbE Dual Port QSFP+ Network Card

Mellanox ConnectX3 40GbE Network Card – Dual Port QSFP+ Adapter

The Mellanox ConnectX3 40GbE Network Card is a PCIe x8 dual-port 40G QSFP+ adapter built on PCI Express 3.0 technology, designed for performance-driven server and storage applications. It delivers high-bandwidth, ultra-low latency, and industry-leading Ethernet connectivity, making it a top choice for Enterprise Data Centers, High-Performance Computing (HPC), and Embedded Environments.

From clustered databases and web infrastructure to high-frequency trading and AI workloads, the Mellanox ConnectX3 provides the speed and reliability needed to improve throughput, reduce latency, and maximize server efficiency.

Advanced Networking for Demanding Applications

The ConnectX3 EN architecture significantly improves network performance by increasing available bandwidth while offloading network processing from the CPU. This makes it especially effective in virtualized server environments, where efficiency and low overhead are critical.

Applications such as real-time analytics, financial services, and large-scale storage networks benefit from faster data access, sub-microsecond latency, and the ability to handle more users per server.

Detailed Specifications

• Interface: PCI-Express 3.0 x8 (backward compatible with PCIe 2.0 & 1.1)

• Ports: Dual 40GbE QSFP+ ports (80Gbps aggregate throughput)

• Compliance: QSFP+ MSA Spec Rev 1.0, IEEE Std. 802.3

• Protocols Supported: RoCE, iSCSI, FCoE, TCP/IP stateless offload

• InfiniBand Support: FDR speeds up to 56Gbps (auto-negotiation for FDR-10, DDR, SDR)

• Form Factor: Low-profile card with 2U bracket included

• Virtualization Support: SR-IOV, VMQ, up to 127 virtual functions (OS dependent)

• Acceleration Features: CORE-Direct offload, GPUDirect offload, traffic steering across multiple cores

• Compatibility: Copper & optical cables, QSA adapters for SFP+ support

• Latency: As low as 1 microsecond (1µs) with RDMA over 40GbE

Key Features of Mellanox ConnectX3 40GbE Network Card

• Dual 40GbE QSFP+ ports for maximum bandwidth

• Low-latency RDMA support for HPC workloads

• RoCE and iSCSI support for storage acceleration

• Compatible with Linux, MikroTik RouterOS, Windows Server, and VMware ESXi

• Energy-efficient architecture to reduce power costs

• Backward compatibility with 10GbE via QSFP+ breakout cables

• Support for SR-IOV virtualization in Hyper-V and KVM

Why Choose Mellanox ConnectX3?

The Mellanox ConnectX3 40GbE Network Card is trusted in mission-critical deployments worldwide. Its dual-port flexibility and scalability make it perfect for:

• Data centers needing high-bandwidth uplinks

• Enterprises deploying virtualized servers

• HPC environments requiring ultra-low latency

• Cloud service providers scaling multi-tenant workloads

When you buy from Arnav Infosystem, you benefit from:

• ✔ 100% Original Mellanox Adapters

• ✔ Fast delivery across India

• ✔ Expert technical support for configuration

Applications of Mellanox ConnectX3 40GbE Network Card

• Enterprise Data Centers: Maximize server utilization and reduce networking bottlenecks

• Cloud Infrastructure: Enable scalable and reliable virtualized environments

• High-Performance Computing (HPC): Ensure sub-microsecond latency in cluster interconnects

• Storage Networking: Leverage RoCE and iSCSI for high-speed SAN/NAS access

• Financial Services: Support high-frequency trading and low-latency transactions

Benefits of Using Mellanox ConnectX3

1. Future-Ready Networking: 40GbE ports deliver the scalability required for tomorrow’s workloads.

2. Improved Server Efficiency: Offloads CPU cycles by handling network processing at the adapter level.

3. Cross-Platform Compatibility: Works seamlessly with Dell, HP, IBM, and Supermicro servers.

4. Low Latency for Critical Workloads: Ideal for AI/ML, HPC, financial trading, and large databases.

Frequently Asked Questions (FAQ)

Q1: Is the Mellanox ConnectX3 compatible with VMware ESXi?
👉 Yes, it is fully supported and widely used in ESXi virtualization.

Q2: Can I use this card for storage networking?
👉 Absolutely. With RoCE and iSCSI support, it accelerates SAN and NAS traffic.

Q3: Does it support 10GbE?
👉 Yes. Using QSFP+ breakout cables, it can connect to 10GbE environments.

Q4: Which servers are compatible?
👉 Works with Dell, HP, Supermicro, IBM, and other enterprise-grade servers.

Q5: Is it suitable for MikroTik RouterOS?
👉 Yes, the Mellanox ConnectX3 works with MikroTik RouterOS, making it a strong choice for ISPs and advanced routing setups.

External Reference

For official technical documentation, visit:
👉 NVIDIA Mellanox Ethernet Adapters