MCX4121A-ACAT

The Mellanox MCX4121A-ACAT enterprise network adapter delivers stable aggregate

throughput of up to 50Gbps, specifically designed for compact servers. This secure,

high-performance Low-Profile adapter is optimized for demanding enterprise

virtualization and storage networking applications.

The MCX4121A-ACAT provides dual-port SFP28 connectivity, enabling high-speed

network interconnection for data center infrastructures requiring high reliability. It

offers cost-effective and reliable access to virtualization, cloud computing, and

distributed storage, allowing data center architects and IT professionals to deliver

reliable performance, rock-solid stability, and an extremely low total cost of ownership

for mission-critical 24/7 operations.

Powered by the ConnectX-4 Lx EN controller, the MCX4121A-ACAT supports RoCE

v1 / RoCE v2 hardware RDMA acceleration, far surpassing standard Ethernet adapters.

With advanced 128MB DDR4 on-board memory, SR-IOV (supporting up to 256 VFs),

and Multi-Host architecture, it ensures consistent low-latency transmission performance

in large-scale clusters and SDN systems.

Featuring a PCIe 3.0 x8 interface and a Low-Profile form factor (includes high and low

brackets), the MCX4121A-ACAT integrates efficiently into massive enterprise computing

systems and edge servers. Through user-definable innovative technologies such as

VXLAN/NVGRE/Geneve tunnel offloading and GPUDirect, it flexibly adapts to storage

and computing business needs, further reducing the total cost of ownership.

Advanced security features provide reliable protection for business data at the network

level. The MCX4121A-ACAT prevents unauthorized access, features UEFI Secure Boot,

and supports hardware offloading for iSCSI/NVMe-oF, ensuring uninterrupted 7x24

operation of servers and storage arrays to fully safeguard enterprise data security.