NVIDIA Mellanox ConnectX-4 Lx EN MCX4121A-XCHT
Dual-Port 10GbE PCIe 3.0 x8 Adapter with UEFI & Host Management
Host Interface
PCIe 3.0 x8
Port Count
2-port
Port Speed & Connector Type
10GbE, SFP28 (backward compatible with SFP+), per port
Form Factor
Standard-height PCIe adapter card
Network Protocol / RDMA
Ethernet with RoCE v2 (RDMA over Converged Ethernet)
Product Description
The NVIDIA Mellanox ConnectX-4 Lx EN MCX4121A-XCHT is a dual-port 10 Gigabit Ethernet adapter that builds on the standard MCX4121A-XCAT platform with UEFI firmware and Host Management support, making it well suited for OEM server integration and remote fleet management. It retains the same PCIe 3.0 x8 host interface, MT27712A0-FDCF-XE controller and RoCE v2 hardware-accelerated RDMA transport as the base ConnectX-4 Lx EN dual-port card, while adding UEFI pre-boot configuration and Host Management capability that allow the NIC to be monitored and configured out-of-band, independent of host OS state. This makes the MCX4121A-XCHT a common choice for server OEMs and IT organizations that need standardized, remotely manageable NICs across large deployments, including scenarios that rely on baseboard management controller (BMC) integration for provisioning and health monitoring.