NVIDIA Mellanox MBF2M516A-CENOT BlueField-2 E-Series Data Processing Unit (DPU), 100GbE Dual-Port QSFP56: This is a BlueField-2 E-Series DPU — a PCIe adapter that pairs an integrated NVIDIA ConnectX-6 Dx NIC with an 8-core 64-bit Arm SoC, so networking, security, and storage services can be offloaded from the host CPU. NVIDIA part number 900-9D219-0056-SN1. This IS a Full-Height Half-Length (FHHL) PCIe Gen 4.0 x16 dual-port 100GbE DPU with 16 GB of on-board DDR4 ECC memory and a dedicated 1GbE RJ-45 out-of-band management port. This IS NOT a plain ConnectX-6 Dx NIC, a SmartNIC without ARM cores, or a single-port adapter. This is NOT a Crypto-Enabled SKU; choose the matching CEEOT variant for line-rate IPsec/TLS offload. Condition: Refurbished, fully tested.
Engineering context. The on-board BlueField-2 SoC combines eight Armv8 A72 cores with the ConnectX-6 Dx network ASIC and 16 GB of DDR4 ECC memory, allowing the card to run an embedded Linux distribution independently of the host operating system. The two QSFP56 cages each carry one 100GbE Ethernet port. The PCIe Gen 4.0 x16 host interface delivers up to 31.5 GB/s of raw I/O bandwidth to the server. On this CENOT variant, hardware crypto acceleration is disabled. E-Series boards integrate an on-board management controller for lights-out provisioning of the embedded ARM subsystem.
Deployment and use cases. Typical workloads include bare-metal cloud infrastructure with tenant isolation and Open vSwitch offload (OVS-DOCA), NVMe over Fabrics (NVMe-oF/TCP and NVMe-oF/RoCE) target and initiator services that run on the embedded Arm cores rather than the host CPU, software-defined firewall and DDoS scrubbing using DOCA App Shield and DOCA Flow, and disaggregated control-plane services in NFV deployments. The DPU is also used as a hardware root of trust for zero-trust data-center architectures.
Technical specifications.
MPN: MBF2M516A-CENOT
NVIDIA P/N: 900-9D219-0056-SN1
DPU SoC: NVIDIA BlueField-2 with integrated ConnectX-6 Dx
ARM cores: 8 × Armv8 A72
Network ports: 2 × QSFP56, 100GbE Ethernet
Host interface: PCIe Gen 4.0 x16
On-board memory: 16 GB DDR4 ECC
Out-of-band management: 1 × 1GbE RJ-45
Crypto offload: Disabled
Form factor: Full-Height Half-Length (FHHL)
Cooling: Passive heatsink (server-supplied airflow)
Condition: Refurbished, individually tested
Compatibility and constraints. Software stack: NVIDIA DOCA SDK, MLNX_OFED, and the BlueField Board Support Package; the host can run Ubuntu, RHEL, SLES, or other supported Linux distributions, and the embedded Arm subsystem ships with Ubuntu. Power and slot: requires a PCIe Gen 4.0 x16 slot in a server able to deliver adapter power per PCIe CEM specification — verify on the server vendor's QVL. Thermal: passive heatsink, requires managed front-to-back airflow; not suitable for workstation chassis without server-grade cooling. Hardware IPsec and TLS offload is NOT available on the CENOT variant; software paths or a CEEOT-suffixed SKU are required for those workloads. E-Series boards have an on-board BMC; if your environment provisions BlueField-2 strictly through host-side tooling, the matching P-Series part may be a better fit. Cabling: NVIDIA Mellanox QSFP56 DACs and AOCs from the matching speed family are recommended; verify against the BlueField-2 Adapter Product Release Guide.
Why T.E.S IT-SOLUTIONS. T.E.S IT-SOLUTIONS supplies refurbished NVIDIA Mellanox enterprise networking hardware that is individually tested before shipment. Reach out via tes-itsolutions.com for compatibility checks, bulk pricing, or technical questions. Standard handling time is 1–3 business days.