ConnectX-6 Dx SmartNIC MCX623106AN-CDAT is the industry's most secure and advanced cloud network interface card to accelerate mission-critical data-center applications, such as security, virtualization, SDN/NFV, big data, machine learning, and storage. The 100 Gigabit Ethernet adapter card provides up to two ports of 100 Gb/s Ethernet connectivity and delivers the highest return on investment (ROI) of any smart network interface card.
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![NVIDIA Mellanox MCX623106AN-CDAT ConnectX®-6 Dx EN Network Interface Card, 100GbE Dual-Port QSFP56, PCIe4.0 x 16, Tall&Short Bracket This picture is about MCX623106AN-CDAT.](https://resource.fs.com/mall/products/60x60/119646.main.jpg)
![NVIDIA Mellanox MCX623106AN-CDAT ConnectX®-6 Dx EN Network Interface Card, 100GbE Dual-Port QSFP56, PCIe4.0 x 16, Tall&Short Bracket This picture is about MCX623106AN-CDAT.](https://resource.fs.com/mall/products/60x60/119646.B.jpg)
![NVIDIA Mellanox MCX623106AN-CDAT ConnectX®-6 Dx EN Network Interface Card, 100GbE Dual-Port QSFP56, PCIe4.0 x 16, Tall&Short Bracket This picture is about MCX623106AN-CDAT.](https://resource.fs.com/mall/products/60x60/119646.C.jpg)
![NVIDIA Mellanox MCX623106AN-CDAT ConnectX®-6 Dx EN Network Interface Card, 100GbE Dual-Port QSFP56, PCIe4.0 x 16, Tall&Short Bracket This picture is about MCX623106AN-CDAT.](https://resource.fs.com/mall/products/60x60/119646.D.jpg)
![NVIDIA Mellanox MCX623106AN-CDAT ConnectX®-6 Dx EN Network Interface Card, 100GbE Dual-Port QSFP56, PCIe4.0 x 16, Tall&Short Bracket This picture is about MCX623106AN-CDAT.](https://resource.fs.com/mall/products/60x60/119646.E.jpg)
![NVIDIA Mellanox MCX623106AN-CDAT ConnectX®-6 Dx EN Network Interface Card, 100GbE Dual-Port QSFP56, PCIe4.0 x 16, Tall&Short Bracket This picture is about MCX623106AN-CDAT.](https://resource.fs.com/mall/products/60x60/119646.F.jpg)
NVIDIA Mellanox MCX623106AN-CDAT ConnectX®-6 Dx EN Network Interface Card, 100GbE Dual-Port QSFP56, PCIe4.0 x 16, Tall&Short Bracket
NVIDIA Mellanox MCX623106AN-CDAT ConnectX®-6 Dx EN Network Interface Card, 100GbE Dual-Port QSFP56, PCIe4.0 x16, Tall&Short Bracket
Product Spotlights
RoCE v1/v2
Zero Touch RoCE, no ECN, no PFC
RoCE over overlay networks
IPsec over RoCE
Selective repeat
Programmable congestion control interface
GPUDirect®
Dynamically connected transport (DCT)
Burst buffer offload
TCP/UDP/IP stateless offload
LSO, LRO, checksum offload
Receive Side Scaling (RSS) also on encapsulated packet
Transmit Side Scaling (TSS)
VLAN and MPLS tag insertion/stripping
Receive flow steering
NVMe over Fabric offloads for target
Storage protocols, iSER, NFSoRDMA, SMB Direct, NVMe-oF, and more
T-10 Dif/Signature Handover
NVIDIA® Mellanox® Ethernet adapter cards offer advanced hardware offloads to reduce CPU resource consumption and drive extremely high packet rates and throughput.
![](https://resource.fs.com/mall/fs_scene_images/20231107175445nhahbs.jpg)
Controller | ConnectX®-6 Dx | ConnectX®-4 Lx | ConnectX®-5 | ConnectX®-5 | ConnectX®-5 |
Ports | Dual-Port QSFP56 | Dual-Port SFP28 | Dual-Port SFP28 | Single-Port QSFP28 | Dual-Port QSFP28 |
Supported Ethernet Speeds | 100/50/40/ 25/10/1GbE | 25/10/1GbE | 25/10/1GbE | 100/50/40/ 25/10/1GbE | 100/50/40/ 25/10/1GbE |
Systems Interface Type | PCIe 4.0 x16 (16.0 GT/s) | PCIe 3.0 x8 (8.0 GT/s) | PCIe 3.0 x8 (8.0 GT/s) | PCIe 3.0 x16 (8.0 GT/s) | PCIe 3.0 x16 (8.0 GT/s) |
RDMA over Converged Ethernet (RoCE) | |||||
Zero Touch RoCE (ZTR) | |||||
ASAP2 (Virtual Switch offload) | — | ||||
SR-IOV | |||||
Hardware-based I/O Virtualization | |||||
NVMe-oF Target Offload | — | ||||
Burst Buffer Offloads | — | ||||
Hardware Offload of VXLAN, NVGRE, and GENEVE Overlay Networks | — |
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