NVIDIA Mellanox MBF2M322A-AENOT BlueField-2 E-Series SmartNIC DPU, Dual 25GbE SFP56: This is a programmable BlueField-2 Data Processing Unit (DPU) with two 25GbE SFP56 network ports for infrastructure offload and acceleration. It pairs an 8-core Arm SoC with on-board memory and a PCIe Gen4 host interface; it is not a standard NIC. The -AENOT variant has on-card crypto disabled. This is a refurbished unit.
Engineering Context
The MBF2M322A-AENOT couples an 8-core BlueField-2 Arm SoC at up to 2.0 GHz with 16 GB of on-board DDR4 memory, enabling the card to host network, storage, and security functions independent of the host CPU. The PCIe Gen4 x16 host interface (operable as x8) supplies up to 32 GT/s per lane. A dedicated 1GbE out-of-band (OOB) port enables management of the DPU separately from the data plane. The -AENOT designation indicates a base feature set with on-card crypto disabled.
Deployment & Use Cases
Bare-metal and managed-hosting clouds where the DPU runs the hypervisor data path and isolates tenant workloads. Software-defined networking with OVS hardware offload and connection tracking. NVMe-over-Fabrics initiator and target acceleration. Telco / NFV data planes and cloud-native infrastructure where a programmable DPU replaces a discrete NIC plus middlebox.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MBF2M322A-AENOT
Series: BlueField-2 E-Series SmartNIC DPU
Network Ports: 2 × SFP56 (25GbE)
Processor: 8-core Arm A72 BlueField-2 SoC, up to 2.0 GHz
On-board Memory: 16 GB DDR4
Host Interface: PCIe 4.0 x16 (also x8)
OOB Management: 1 × 1GbE
Crypto: Disabled
Form Factor: Half-Height Half-Length (HHHL), Tall Bracket
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Constraints
Requires a host platform with a free PCIe Gen4 (or Gen3 fallback) x16 or x8 slot and BIOS/UEFI support for large BAR / above-4G decoding. Supported on the NVIDIA DOCA software framework on standard x86_64 Linux distributions; verify the kernel and OS level against the DOCA release notes. Cables must be 25GbE-rated and SFP56-compatible. Because crypto is disabled, this SKU is not suitable for workloads that need on-card IPsec or TLS acceleration. Optional features such as NVMe SNAP depend on licensing — verify with NVIDIA documentation before deploying.
Why TES
T.E.S IT-SOLUTIONS power-cycles every BlueField DPU, validates link-up on both 25GbE SFP56 ports, and confirms ARM-side boot before shipment. Visit tes-itsolutions.com for pre-sales engineering support, full warranty terms, and 1–3 day handling on in-stock units.