NVIDIA Mellanox MBF2M322A-AECOT BlueField-2 E-Series SmartNIC DPU, Dual 25GbE SFP56, 16GB DDR4, Crypto Enabled: This is a BlueField-2 Data Processing Unit (DPU) SmartNIC in the E-Series (M-suffix) standalone-mode variant, engineered for accelerated networking, storage, and security offload in enterprise and cloud data centers. The card combines an NVIDIA BlueField-2 SoC with an integrated ConnectX-6 Dx network controller and 8 ARM Cortex-A72 cores. This is a programmable DPU PCIe adapter with onboard ARM compute, not a basic NIC and not a passive expansion card. The E-Series variant exposes the integrated BMC/management out-of-band rather than through the host PCIe channel, allowing the DPU to operate independently of host server lifecycle. This unit ships with crypto acceleration enabled (IPsec and TLS inline) and 16GB DDR4 memory. This is a refurbished unit.
Engineering Context
The MBF2M322A-AECOT integrates 8 64-bit ARMv8 A72 cores with 16GB of on-board DDR4 memory, allowing the DPU to run a full Linux operating system independent of the host. Two SFP56 ports deliver up to 25Gb/s per port for a 50Gb/s aggregate link rate. The PCIe Gen4 x16 host interface (also operable as x8) provides line-rate offload for RDMA over Converged Ethernet (RoCEv2), NVMe-oF, Open vSwitch, and inline IPsec or TLS crypto. The E-Series exposes the BMC over a dedicated path (independent of host), which is the key architectural distinction vs. the H-suffix P-Series. A dedicated 1GbE out-of-band management port supports DPU lifecycle and OS provisioning separate from the data plane.
Deployment & Use Cases
Standalone DPU appliances where the BlueField runs Linux services independent of the host server, including software-defined firewalls and load balancers. NVMe-oF storage targets and initiators in disaggregated storage clusters. Cloud infrastructure offload running Open vSwitch, virtio-net, and SR-IOV control planes outside the host hypervisor. Inline IPsec and TLS encryption for east-west and north-south traffic in zero-trust architectures. Bare-metal-as-a-service in multi-tenant clouds where tenant networking lives entirely on the DPU.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MBF2M322A-AECOT (NVIDIA P/N 900-9D206-0083-ST0)
Product Family: BlueField-2 E-Series DPU SmartNIC
Network Ports: 2x SFP56 (25GbE per port, 50GbE aggregate)
ARM Cores: 8x ARMv8 A72
On-board Memory: 16GB DDR4
Host Interface: PCIe Gen4 x16 (configurable as x8)
Network Controller: Integrated ConnectX-6 Dx
Crypto: Enabled — IPsec and TLS inline acceleration
OOB Management: 1GbE RJ45 (independent BMC channel — E-Series)
Form Factor: HHHL (Half-Height, Half-Length) with tall bracket
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with standard PCIe Gen4 x16 and x8 server slots. The DPU runs the NVIDIA DOCA software framework and supports BlueField OS (Linux) for in-DPU services. Requires NVIDIA Mellanox-supported drivers (MLNX_OFED or DOCA) on the host. The two ports operate at 25GbE per port; this card does NOT support 100GbE or 200GbE per port — those are different MPNs. Direct attach copper or AOC must be SFP28/SFP56-rated for 25GbE. This is the E-Series (M-suffix) standalone variant: BMC is exposed independently of host PCIe — it is NOT the H-suffix P-Series where BMC is host-channeled. The SoC OS image is not pre-loaded — the customer must flash a supported BlueField OS or DOCA image.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests every BlueField DPU for PCIe enumeration, port link, ARM SoC boot health, and on-board memory integrity before shipment. We provide expert consultation on DPU integration with NVIDIA DOCA, RDMA fabric design, and global shipping. Handling time is 1–3 business days.