NVIDIA 900-9X6AG-0076-ST0 | ConnectX-6 Dx Dual-Port 100GbE Network Adapter, PCIe 4.0 x16

Q: What speeds does this adapter support?
A: The ConnectX-6 Dx supports multiple Ethernet speeds on each QSFP56 port: 1, 10, 25, 40, 50, and 100 Gb/s. This provides flexibility to connect to different network infrastructure and allows for future upgrades without replacing the adapter.

Q: Does this model support hardware encryption?
A: No, the MCX623106AS-CDAT variant has crypto disabled, meaning it does not support inline IPsec or TLS hardware encryption offload. However, it does include Secure Boot functionality for firmware integrity validation. For encryption offload, consider the MCX623106AC-CDAT variant.

Q: What is RDMA and RoCEv2, and why is it important?
A: RDMA (Remote Direct Memory Access) allows direct memory-to-memory data transfer between servers without CPU involvement, dramatically reducing latency and CPU overhead. RoCEv2 (RDMA over Converged Ethernet v2) enables this capability over standard Ethernet networks, making it ideal for storage, HPC, and AI/ML workloads that require ultra-low latency and high throughput.

Q: Can this adapter be used in virtualized environments?
A: Yes, the ConnectX-6 Dx includes SR-IOV (Single Root I/O Virtualization) support, allowing multiple virtual machines to share the physical adapter with dedicated hardware resources and near-native performance. It also supports advanced virtualization offloads including ASAP2 technology for Open vSwitch acceleration.

Q: What cable types are compatible with this adapter?
A: The QSFP56 ports support both copper Direct Attach Cables (DAC) and optical transceivers. Compatible options include 100GBASE-CR4 DAC cables for short-reach connections, 100GBASE-SR4 optical modules with multimode fiber for up to 100m, and 100GBASE-LR4 modules with single-mode fiber for longer distances. The adapter also supports breakout cables for connecting to lower-speed devices.