NVIDIA Mellanox MBF1M332A-AENAT BlueField (Gen-1) SmartNIC, Dual 25GbE SFP28, PCIe Gen3/Gen4 x8: This is a first-generation BlueField G-Series SmartNIC with two SFP28 ports for 25Gb/s Ethernet and a PCIe Gen3/Gen4 x8 host interface. The card integrates an Arm-based BlueField SoC with on-board DDR4 memory for programmable network offload. This is a SmartNIC plug-in card, not a transceiver, switch, or BlueField-2 DPU. NVIDIA P/N 900-9D110-0053-ST0. This is a refurbished unit.
Engineering Context
The MBF1M332A-AENAT is from the original BlueField generation that pairs ConnectX-5-class network silicon with an Arm-based control plane. Each SFP28 port runs a single lane at 25Gb/s NRZ. PCIe Gen4 x8 at 16GT/s per lane provides the host bandwidth for two 25GbE ports plus SmartNIC offload. Crypto is disabled on this AENAT suffix — select a crypto-enabled suffix if hardware IPsec/TLS offload is required. On-board 16GB DDR4 supports embedded Linux for control plane and offload applications. Compared to BlueField-2, BlueField-1 has lower core count and reduced offload acceleration but is sufficient for many storage and SDN offload scenarios.
Deployment & Use Cases
NVMe-over-Fabrics initiator and target offload in 25G storage networks. SDN data plane offload for OVS, where IPsec is handled in software or upstream. SR-IOV NIC consolidation with embedded Linux runtime for legacy SmartNIC migration paths. Lab and dev/test platforms where BlueField-1 is acceptable. Cost-conscious 25GbE offload deployments that do not require crypto acceleration.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MBF1M332A-AENAT
NVIDIA P/N: 900-9D110-0053-ST0
Family: BlueField (Gen-1) G-Series SmartNIC
Network Ports: 2x SFP28
Ethernet Speed: Up to 25GbE per port (1x 25Gb/s NRZ)
Host Interface: PCIe Gen3/Gen4 x8 (16GT/s per lane on Gen4)
SoC: Arm-based BlueField (Gen-1) multi-core complex
On-board Memory: 16GB DDR4
Security: Crypto disabled
Form Factor: Half-Height Half-Length (HHHL) with tall bracket
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Constraints
Requires a server PCIe Gen3 or Gen4 x8 mechanical and electrical slot. Software stacks targeting BlueField-2 (newer DOCA features) may not run on BlueField-1 — verify the DOCA / BlueField OS release supports BlueField (Gen-1). Compatible with SFP28 25GbE optics and DACs; SFP+ 10GbE optics work where supported by the host port. The AENAT suffix has crypto disabled — not suitable for deployments that require hardware-accelerated IPsec, TLS, or storage encryption. Not interchangeable with the MBF1M322A-ASNAT (different memory and crypto configuration).
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests every BlueField SmartNIC for PCIe link training, port LED health, and firmware bring-up before shipment. We provide expert consultation on SmartNIC integration, EU-based shipping with 1–3 day handling, and a 14-day return policy. Visit https://www.tes-itsolutions.com for the full Mellanox catalog.