NVIDIA Mellanox MBF1M322A-ASNAT 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, a 16-core BlueField Arm complex, on-board DDR memory, and a PCIe Gen3/Gen4 x8 host interface. Crypto is enabled on this ASNAT suffix for hardware-accelerated security offload. This is a SmartNIC plug-in card, not a transceiver, switch, or BlueField-2 DPU. NVIDIA P/N 900-9D110-0053-ST1. This is a refurbished unit.
Engineering Context
The MBF1M322A-ASNAT pairs ConnectX-5-class network silicon with a 16-core Arm-based BlueField (Gen-1) compute complex. 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 enabled on this SKU for hardware IPsec, TLS, and storage encryption acceleration — the differentiator vs. crypto-disabled BlueField-1 suffixes. On-board 8GB DDR memory supports embedded Linux for control plane and offload applications.
Deployment & Use Cases
Encrypted NVMe-over-Fabrics target nodes in 25G storage networks. SDN data plane offload with inline IPsec for site-to-site or tenant-tenant tunnels. SR-IOV NIC consolidation with embedded Linux runtime where crypto is mandatory. Edge gateways requiring hardware crypto and modest DDR for control plane. Lab and dev/test platforms exercising BlueField-1 software stacks with crypto features.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MBF1M322A-ASNAT
NVIDIA P/N: 900-9D110-0053-ST1
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: 16-core Arm BlueField (Gen-1) G-Series
On-board Memory: 8GB DDR
Security: Crypto enabled (IPsec/TLS/storage offload)
Form Factor: Full-Height Half-Length (FHHL) 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. Not interchangeable with the MBF1M332A-AENAT (different memory and crypto configuration: AENAT is 16GB DDR4 crypto disabled, ASNAT is 8GB DDR crypto enabled). Not a BlueField-2 part — do not assume DOCA-2 specific accelerators are available.
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.