NVIDIA Mellanox MBF1L332A-AFNAT BlueField-1 SmartNIC, Dual-Port 25GbE SFP28: This is a BlueField-1 G-Series programmable SmartNIC adapter card with a dual-port SFP28 interface for 25Gb/s Ethernet. The card integrates an Armv8 SoC with 16GB DDR4 ECC on-board memory and a PCIe Gen3.0/4.0 x8 host interface in an HHHL form factor with tall bracket. This SKU is the crypto-disabled variant. This is not a standard ConnectX adapter — it is a programmable DPU platform. This is a refurbished unit.
Engineering Context
The MBF1L332A-AFNAT pairs a Mellanox ConnectX-5 network controller with an Armv8 SoC subsystem in a single PCIe card. The on-board 16GB DDR4 ECC memory supports the Arm cores running offload workloads independently of the host CPU. The PCIe Gen3.0/4.0 x8 host interface delivers up to ~16GB/s peak throughput on Gen4 platforms. Two SFP28 cages support 25GbE per port. Form factor is HHHL with a tall bracket; this is the AFN variant with crypto disabled and ARM mode active.
Deployment & Use Cases
Network function virtualization (NFV) where packet processing is offloaded from the host. Software-defined storage initiators running directly on the DPU. Edge security appliances using on-card Arm processing for DPI or firewalling. Tenant isolation in multi-tenant cloud servers where the DPU runs the data plane. Bare-metal-as-a-service control planes.
Technical Specifications
- OEM: NVIDIA Mellanox
- Part Number: MBF1L332A-AFNAT
- Series: BlueField-1 G-Series SmartNIC / DPU
- Network Ports: 2x SFP28
- Data Rate: 25GbE per port
- Host Interface: PCIe Gen3.0/4.0 x8
- On-board Memory: 16GB DDR4 ECC
- Processor: Armv8 SoC subsystem
- Crypto: Disabled (AFN variant)
- Form Factor: HHHL with tall bracket
- Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Requires a PCIe Gen3.0 x8 or Gen4.0 x8 slot with sufficient power and BlueField driver support (DOCA / MLNX_OFED). Compatible with standard 25GbE switches; SFP28 cages accept DAC, AOC, and SFP28 transceivers per Mellanox firmware compatibility lists. Not a passive NIC — requires BlueField runtime environment to operate the DPU control plane. Crypto offload is not available on this AFN SKU; choose an AECAT/AECNT variant if hardware encryption is required.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests every BlueField unit for link bring-up, on-card memory integrity, and PCIe enumeration before shipment. We provide expert consultation on DPU integration, global shipping, and 1–3 day handling. Visit www.tes-itsolutions.com for the full catalog.
Frequently Asked Questions
What part number does the MBF1L332A-AFNAT have?
The MBF1L332A-AFNAT part number is MBF1L332A-AFNAT, as listed in the specifications for MBF1L332A-AFNAT.
What is the MBF1L332A-AFNAT NOT compatible with?
This is not a standard ConnectX adapter — it is a programmable DPU platform. Confirm fitment against your platform before ordering MBF1L332A-AFNAT.
What condition is the MBF1L332A-AFNAT supplied in, and who sells it?
The MBF1L332A-AFNAT is supplied in Refurbished condition by T.E.S IT-SOLUTIONS from EU stock, with 1-3 business day handling and worldwide B2B shipping. See https://www.tes-itsolutions.com/product-page/nvidia-bluefield-1-mbf1l332a-afnat-eth-25gbe-2x-sfp28-gen3-0-4-0-x8.