MCX353A-QCBT Mellanox Technologies ConnectX-3 VPI Internal Ethernet
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ConnectX-3 VPI
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overview
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MCX353A-QCBT Overview
MELLANOX MCX353A-QCBT Connectx-3 Vpi Network Adapter
Single QDR 40Gb/s or 10GbE, PCIe Base 3.0
- Wired
- PCI Express Ethernet
- Internal
Summary Description
Mellanox Technologies ConnectX-3 VPI. Internal. Connectivity technology: Wired, Host interface: PCI Express, Interface: Ethernet. Product colour: Green
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Specifications
Overview
| Condition | Refurbished |
|---|---|
| Brand | Mellanox |
| Stock | In Stock |
Ports & interfaces
| Connectivity technology | Wired |
|---|---|
| Host interface | PCI Express |
| Interface | Ethernet |
| Compatible memory cards | Not supported |
Network
| Networking standards | IEEE 802.3ad, IEEE 802.3ae |
|---|---|
| Ethernet LAN | Yes |
| Wi-Fi | No |
| Jumbo frames support | Yes |
| Supported network protocols | TCP/UDP, EoIB, IPoIB, SDP, RDS |
Design
| Product colour | Green |
|---|---|
| Internal | Yes |
System requirements
| Compatible operating systems | Novell SLES, Red Hat Enterprise Linux Microsoft Windows Server 2008/CCS 2003, HPC Server 2008 OFED WinOF VMware ESX Server 3.5, vSphere 4.0/4.1 |
|---|---|
| Windows operating systems supported | Yes |
| Linux operating systems supported | Yes |
Sustainability
| Sustainability certificates | RoHS |
|---|
Weight & dimensions
| Width | 142 mm |
|---|---|
| Depth | 52 mm |
Other features
| Data transfer rate | 40 Gbit/s |
|---|---|
| Connector(s) | 1 x QDR |
| Wireless connection | No |
Frequently Asked Questions
What does VPI stand for on the Mellanox ConnectX-3 MCX353A-QCBT? +
VPI stands for Virtual Protocol Interconnect. This feature allows the MCX353A-QCBT to provide the flexibility to operate in either InfiniBand or Ethernet mode. It enables data centers to consolidate their infrastructure by supporting different fabric protocols on a single hardware platform, providing exceptional versatility for high-performance computing and enterprise environments.
Does the MCX353A-QCBT support PCIe 3.0 connectivity? +
Yes, this adapter is designed with a PCIe 3.0 x8 interface. This high-bandwidth interface ensures that the card can fully utilize the 40Gb/s throughput capacity without becoming a bottleneck at the system bus level. It is optimized to work efficiently with modern server architectures to deliver low-latency data transfers.
What type of physical connection does this NIC use for 40GbE? +
The MCX353A-QCBT features a QSFP+ (Quad Small Form-factor Pluggable) port. This interface supports a wide variety of cabling options, including copper DAC cables for short-reach, top-of-rack deployments or active optical cables for longer distances, giving you significant flexibility in how you architect your high-speed network rack.
Is the Mellanox ConnectX-3 suitable for low-latency trading applications? +
Absolutely. The ConnectX-3 series is widely recognized for its hardware-based offloading capabilities, including support for RDMA over Converged Ethernet (RoCE). By bypassing the CPU stack, the card significantly reduces latency and improves message rates, making it an excellent candidate for high-frequency trading platforms and other performance-sensitive financial applications.
What is the maximum throughput supported by the MCX353A-QCBT? +
This network adapter is capable of providing a maximum throughput of 40Gb/s. Whether you are operating in an InfiniBand environment or utilizing the card for 40GbE Ethernet traffic, it is engineered to sustain high-bandwidth data movement, essential for demanding workloads like distributed databases, big data analytics, and cloud storage systems.
Does this NIC support virtualization features like SR-IOV? +
Yes, the ConnectX-3 architecture natively supports Single Root I/O Virtualization (SR-IOV). This allows a single physical PCIe device to appear as multiple separate virtual functions, enabling direct access for virtual machines. This reduces hypervisor overhead and ensures that virtualized environments achieve near-native networking performance.
Can I use the MCX353A-QCBT with standard Ethernet switches? +
Yes, when configured in Ethernet mode, this card is fully compatible with standard 40GbE switches. It adheres to industry-standard protocols, allowing for seamless integration into existing Ethernet-based data center fabrics. You can connect it to your network infrastructure using standard QSFP+ transceivers or direct-attach cables that match your switch requirements.
What operating systems are compatible with the ConnectX-3 VPI? +
The MCX353A-QCBT is compatible with a broad range of enterprise-grade operating systems, including major Linux distributions, VMware ESXi, and Windows Server. Mellanox provides robust driver support for these platforms, ensuring that you can deploy the card across heterogeneous environments while maintaining high stability and performance standards.
Can I request a bulk quote for multiple ConnectX-3 units from BuyRouterSwitch.com? +
Certainly. We specialize in providing tailored procurement solutions for large-scale deployments. If you are planning a data center upgrade or require a substantial quantity of the MCX353A-QCBT, please reach out to our sales team directly. We are happy to provide comprehensive bulk pricing and help facilitate your project requirements.
Why should I choose BuyRouterSwitch.com for my enterprise networking hardware? +
BuyRouterSwitch.com is a trusted source for enterprise networking hardware, focusing on authentic gear and streamlined procurement. We maintain a large inventory and offer a secure ordering platform to ensure your project timelines are met. Our commitment to accuracy and customer service makes us the preferred partner for IT professionals sourcing high-performance networking components.
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