NVIDIA Mellanox ConnectX-4 EN MCX445B-CCAN OCP2.0
Single-Port 100GbE OCP 2.0 Adapter, PCIe 3.0 x16
Host Interface
PCIe 3.0 x16
Port Count
1-port
Port Speed & Connector Type
100GbE, QSFP28
Network Protocol / RDMA
Ethernet with RoCE v2 (RDMA over Converged Ethernet)
Form Factor
OCP 2.0 Mezzanine Card
Product Description
The NVIDIA Mellanox ConnectX-4 EN MCX445B-CCAN is a single-port 100 Gigabit Ethernet network adapter in the Open Compute Project (OCP) 2.0 mezzanine form factor, part of the full-bandwidth ConnectX-4 EN family. It connects to the host through a PCIe 3.0 x16 interface and delivers a 100GbE QSFP28 port with hardware-accelerated RDMA over Converged Ethernet (RoCE v2), offloading data transport from the host CPU to reduce latency for storage and compute traffic. As an OCP 2.0 mezzanine card, the MCX445B-CCAN is designed for tool-less installation in OCP-compliant chassis, offering a compact, rear-serviceable alternative to full-height PCIe add-in cards for hyperscale and cloud server fleets standardizing on 100GbE connectivity. Distributor records for this SKU do not list a specific controller revision or NVIDIA ordering part number; buyers should confirm the exact firmware/controller revision and current NVIDIA SKU with MABLETECH or an NVIDIA channel partner prior to order.