NVIDIA Mellanox ConnectX-5 Ex EN 100GbE OCP 3.0 Single-Port QSFP28 Multi-Host Adapter - MCX565M-CDUI
This Ethernet network interface card (NIC) is the NVIDIA Mellanox MCX565M-CDUI, a ConnectX-5 Ex EN 100GbE adapter in OCP 3.0 form factor with Multi-Host, host management, and PCIe 4.0 x16 interface. This is a new, factory-sealed unit from T.E.S IT-SOLUTIONS. It does NOT include Crypto functionality (M suffix = Multi-Host, no Crypto). It is NOT a standard PCIe HHHL card.
Engineering Context
The MCX565M-CDUI is built on the ConnectX-5 Ex ASIC with PCIe Gen 4.0 x16, delivering 100 Gb/s through a single QSFP28 port. The Multi-Host architecture allows multiple host CPUs to share a single physical NIC for hyperscale hardware density. It supports RoCE v2, RDMA, SR-IOV, NVMe-oF, VXLAN/GRE tunnel offloads. The OCP 3.0 form factor with internal lock bracket fits modular server mezzanine slots.
Deployment and Use Cases
The MCX565M-CDUI is deployed in hyperscale multi-host OCP 3.0 server architectures where a single NIC must serve multiple independent host CPUs. Cloud service providers use it for dense multi-tenant environments running VMware ESXi, KVM, or containerized workloads on Dell, HPE, Lenovo, and Supermicro platforms with OCP 3.0 mezzanine slots.
Technical Specifications
- Model: MCX565M-CDUI
- Product Type: ConnectX-5 Ex EN Ethernet Adapter Card (NIC)
- Port: 1x QSFP28
- Speed: Up to 100 Gb/s; also supports 40/25/10/1 GbE
- PCIe Interface: Gen 4.0 x16
- Form Factor: OCP 3.0
- Bracket: Internal Lock
- Multi-Host: Supported
- Host Management: Enabled
- Crypto: Not enabled
- Condition: New
Compatibility and Hard Constraints
The MCX565M-CDUI uses a QSFP28 connector. This is an OCP 3.0 mezzanine card and will NOT fit standard PCIe slots. The server must have an OCP 3.0 mezzanine slot with Multi-Host-capable firmware. It is Ethernet-only and does NOT support InfiniBand. Crypto is NOT enabled. The MCX565A-CDAI is the Crypto-enabled variant without Multi-Host.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS provides this MCX565M-CDUI as a new, factory-sealed unit. Technical consultation available. Global shipping with 1-3 business day handling time.