The nVidia Mellanox MCX4121A-XCAT ConnectX-4 LX is a low-profile PCIe 3.0 x8 network interface card manufactured by nVidia. It features two SFP+ ports supporting transmission speeds of up to 10 Gbps per port.

This NIC supports dual-port connectivity for high-throughput applications and is compatible with systems that accept half-height, half-length form factors using standard or low-profile brackets. Designed for Ethernet networks utilizing fiber or direct attach copper via SFP+ modules, it can be integrated into environments where stable 10 GbE connections are required across multiple devices in rack-mounted servers or workstations equipped with available expansion slots.

nVidia Mellanox MCX4121A-XCAT: Mellanox CX4121A MCX4121A-XCAT PCIe3.0 ConnectX-4 10Gigabit Ethernet Card.