NVIDIA Mellanox MBF2M922A-GENABQP BlueField-2 SmartNIC, 50GbE Dual SFP56, OCP 3.0 Multi-Host: This is a BlueField-2 Data Processing Unit (DPU) / SmartNIC in OCP 3.0 (TSFF) form factor, with two SFP56 ports rated at 50GbE per port, an Arm-based DPU subsystem with 16GB on-board DDR memory, PCIe Gen4 x16 host interface, and a pull-tab for tool-less rack handling. This specific SKU has crypto-acceleration disabled and ships without secure boot enabled. This is a SmartNIC/DPU, not a passive NIC; the on-card Arm cores can run workloads independently of the host. NVIDIA P/N family: MBF2M922A-GENAB (variant: QP, Crypto Disabled). This is a refurbished unit — tested by T.E.S IT-SOLUTIONS.
Engineering Context
BlueField-2 combines a ConnectX-6 Dx network controller and 8 Armv8 A72 cores in a single die. The 16GB DDR4 memory feeds the Arm cores for offloaded networking, storage, and security workloads (OVS, NVMe-oF target, IPsec, TLS — with the limitation that hardware crypto is disabled on this SKU). The Multi-Host capability lets a single DPU appear as up to four independent PCIe endpoints to four host CPUs sharing the same chassis. PCIe Gen4 x16 provides up to ~256 Gb/s of host bandwidth, well above the 100Gb/s aggregate of the two 50GbE ports.
Deployment & Use Cases
Cloud and bare-metal infrastructure offload, where OVS, vSwitch, and overlay networking run on the DPU instead of the host CPU. NVMe-oF storage targets running on the Arm cores. Multi-tenant hypervisor hosts using Multi-Host to share the DPU across compute sleds. Telco vRAN and edge appliances where SmartNIC offload reduces x86 utilization. Security gateways using software-based encryption (note: hardware crypto is disabled on this SKU).
Technical Specifications
OEM: NVIDIA Mellanox
Part Number (MPN): MBF2M922A-GENABQP
Product Family: BlueField-2 DPU / SmartNIC
Ports: 2 × SFP56
Data Rate per Port: 50GbE
Network Controller: ConnectX-6 Dx (integrated)
DPU Cores: 8 × Arm Cortex-A72 (Armv8)
On-board Memory: 16GB DDR4
Host Interface: PCIe Gen4 x16
Form Factor: OCP 3.0 (TSFF) with pull-tab
Multi-Host: Supported (up to 4 hosts)
Crypto Acceleration: Disabled on this SKU
Secure Boot: Not enabled on this SKU
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Requires an OCP 3.0 (TSFF) slot — not compatible with PCIe-CEM (standard add-in card) slots without an adapter chassis. Pairs with NVIDIA Spectrum (SN2000/SN3000) Ethernet switches and 50GbE-capable upstream switches via SFP56 cabling. Multi-Host requires platform support; consult your server vendor's OCP 3.0 implementation. This SKU has crypto acceleration disabled — not suitable where hardware-accelerated IPsec/TLS at line rate is required; consider crypto-enabled BlueField-2 SKUs (e.g., "-GENAT" variants) instead. Secure Boot is not pre-enabled. Not compatible with QSFP56 ports (port form factor is SFP56, not QSFP56).
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS verifies port link, PCIe lane training, and DPU subsystem boot on every BlueField unit before shipment. We provide compatibility consultation for OCP 3.0 / Multi-Host server pairings, global shipping with handling time of 1–3 business days, and direct technical support for DPU offload deployments. Visit www.tes-itsolutions.com for the full inventory.