Mellanox Technologies MCX354A-QCBT ConnectX-3 Dual-Port 10GBase-X PCI-Express x8 Plug-in Network Adapter

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Overview

Overview

ConnectX-3 adapter cards with Virtual Protocol Interconnect (VPI) supporting InfiniBand and Ethernet connectivity provide the highest performing and most flexible interconnect solution for PCI Express Gen3 servers used in Enterprise Data Centers, High-Performance Computing, and Embedded environments. Clustered data bases, parallel processing, transactional services and high-performance embedded I/O applications will achieve significant performance improvements resulting in reduced completion time and lower cost per operation ConnectX-3 with VPI also simplifies system development by serving multiple fabrics with one hardware design.

Specifications

Model Number: MCX354A-QCBT

Brand: Mellanox Technologies

Alt. Part Number(s): MCX354A-QCBT

Product Type: Network Adapter

Technical Description

Brand: Mellanox Technologies

Model: MCX354A-QCBT

Product Name: Connect-3 Vpi Adapter Card-Dual Port QSFP QDR Ib

Product Line: ConnectX-3

Product Type: 10Gigabit Ethernet Card

Host Interface: PCI Express x8

Expansion Slot Type: QSFP

Network Technology: 10GBase-X

Form Factor: Plug-in Card

Height: 2.7"

Width: 5.6"

Green Compliant: RoHS-6

Number of Total Expansion Slots: 2

Number of QSFP Slots: 2

Product information, pricing, availability, images or discounts are subject to change without notice and may not always reflect the most current details. In the event of pricing or availability discrepancies, we reserve the right to cancel or adjust orders. Customers will be notified and may choose to proceed or cancel.

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The website provided detailed information, and I received a brand new PNY version RTX Pro 6000 at a reasonable price. Shipping was fast. My only suggestion is to confirm the customs clearance agency with the customer before exporting to Canada to avoid delays. Overall, shopping here is trustworthy.

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Although the product itself was unsucc6for our purposes, the customer uce was exceptional. I would gladly go business with this company again.

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As a dark matter researcher building a university-grade dual-node system at home, I sourced an RTX Pro6000 Blackwell GPU from eSaitech—paired with i9-14900Ks, 128GB RAM per node, 20TB of NVMe across 4/4/8/4TB partitions, and Ubuntu 24.04. The build was flawless—until I accidentally charged the $8,000 GPU to my checking account via PayPal instead of the intended credit card. That misstep triggered a cascade of issues across PayPal, my bank, and eSaitech’s Shopify backend. Enter MaryLou from eSaitech customer service. She didn’t just help—she orchestrated a full recovery: coordinating RMA and accounting to reverse the charge, reprocess it correctly, and clear the default with PayPal. I was stunned. This wasn’t just good service—it was spectacular. From a company I’d never worked with, and to whom I technically owed money. The GPU arrived fast, at the lowest price I could find anywhere. But it’s the integrity and responsiveness of their team that truly impressed me. I don’t even know how to thank them properly. If you’re sourcing high-end components and value not just price but people, eSaitech earns my highest recommendation. Note my system below -

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Mellanox Technologies MCX354A-QCBT ConnectX-3 Dual-Port 10GBase-X PCI-Express x8 Plug-in Network Adapter

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Mellanox Technologies MCX354A-QCBT ConnectX-3 Dual-Port 10GBase-X PCI-Express x8 Plug-in Network Adapter