Mellanox ConnectX-7 vs ConnectX-6 Dx: Which NIC for Your AI Server?

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Mellanox Connect-7 Internal 200GbE NDR Dual-port QSFP112 PCI Express Network Adapter MCX713106AC-VEAT for HPC & AI/DC Servers
Brand NVIDIA/Mellanox Model number MCX713106AC-VEAT Rate 200GbE port dual connector QSFP112 condition new certification CE,FCC,RoTH,ISO9001 warranty 1 year
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Mellanox MCX715105AS-WEAT Intel Ethernet Converged Network Adapter PCIe 400GbE Server Internal
brand NVIDIA/Mellanox Model number MCX715105AS-WEAT port single connector QSFP112 rate 400GbE condition new warranty 1year certification new
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Mellanox MCX713114TC-GEAT Connect-7 50/25GbE Quad-port PCI Express Internal Network Adapter for HPC & AI/DC Servers
Brand Mellanox/NVIDIA Model number MCX713114TC-GEAT connector SFP56 rate 25/50GbE port quad certification CE,FCC,RoTH,ISO9001 condition new warranty 1 year
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Mellanox MCX713104AS-ADAT Connect-7 Series 50/25Gb/s PCI Express Internal Network Card for Server Applications
brand NVIDIA/Mellanox model number MCX713104AS-ADAT port quad connector SFP56 rate 25/50Gb/S condition new warranty 1 year
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Mellanox ConnectX-7 HHHL MCX713104AC-ADAT 900-9X7AO-00C3-STZ Ethernet Network Cards
Brand NVIDIA/Mellanox Model number MCX713104AC-ADAT port dual connector SFP56 Condition new warranty 1 year
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High Performance Broadcom Used 9560-16i PCIe 4.0 12Gb/s Storage & Network Interface Card Adapter for Servers
Brand Broadcom model number 9560-16i port 16 interface PCIe 4.0 x8 rate 12Gb/S condition used warranty 1 year
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Broadcom 9560-8i Raid Card 8 Ports SCSI SAS/SATA/Nvme LSI Internal PCIE Server Controller Network Adapter RAID Card
Brand Broadcom Model number 9560-8i port 8 rate 12Gb/s condition new warranty 3 year interface PCIe 4.0 x8 Temperature 0-55℃
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Mellanox MCX753436MC-HEAB ConnectX-7 Internal 200GbE NDR IB Dual-Port PCI Express Adapter for Server

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Mellanox ConnectX-7 vs ConnectX-6 Dx: Which NIC for Your AI Server?

2026 / 08 / 10

Choosing the right NIC directly affects GPU utilization and training throughput. ConnectX-6 Dx supports 2x100GbE over PCIe 4.0 with hardware RDMA offload - ideal for AI inference and scale-out storage. ConnectX-7 doubles bandwidth with 2x200GbE or 400GbE NDR InfiniBand over PCIe 5.0 - the standard for DGX H100 training clusters.

Which to Choose

Choose ConnectX-6 Dx for AI inference, enterprise NAS, and cloud-native apps requiring up to 200GbE. Choose ConnectX-7 for large-scale AI training (100+ GPUs), HPC workloads, and ultra-low latency applications needing 400GbE or NDR InfiniBand. Topstar stocks both in PCIe and OCP 3.0 form factors. Request quote: dsale@topsfp.com | WhatsApp: +86 198 6014 6913

Mellanox ConnectX-7 vs ConnectX-6 Dx: Which NIC for Your AI Server?

Which to Choose

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