NVIDIA Mellanox MBF2H516B-EENOT BlueField-2 DPU, Dual 100GbE QSFP56, PCIe Gen4 x16: This is a BlueField-2 P-Series Data Processing Unit (DPU) with dual QSFP56 ports for 100Gb/s Ethernet connectivity and a PCIe Gen4 x16 host interface. The card integrates a BlueField-2 SoC with Arm cores, on-board DDR4 ECC memory, and eMMC storage to offload networking, storage, and security from the host CPU. This is a SmartNIC/DPU plug-in card, not a standalone switch or transceiver. NVIDIA P/N 900-9D205-0056-ST0. This is a refurbished unit.
Engineering Context
The MBF2H516B-EENOT belongs to the BlueField-2 family that combines ConnectX-6 Dx network performance with a programmable Arm-based compute complex. Each QSFP56 port supports up to 100GbE using 4 lanes at 25Gb/s NRZ. The PCIe Gen4 x16 host interface provides up to 16GT/s per lane, sufficient to sustain dual 100GbE without backplane oversubscription. Crypto is enabled on this SKU for hardware-accelerated IPsec/TLS offload, while Secure Boot is disabled on this specific suffix. On-board 16GB DDR4 ECC at 3200MT/s and 64GB eMMC support an embedded Linux runtime (DOCA/BlueField OS).
Deployment & Use Cases
Bare-metal cloud where tenant networking, storage virtualization, and host isolation must run on the DPU rather than the x86 host. NVMe-over-Fabrics (NVMe-oF) initiator and target offload. Distributed firewall and east-west microsegmentation in software-defined data centers. Telemetry and DPI workloads where line-rate packet processing is required. Telco NFV and vRAN data plane acceleration.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MBF2H516B-EENOT
NVIDIA P/N: 900-9D205-0056-ST0
Family: BlueField-2 P-Series DPU
Network Ports: 2x QSFP56
Ethernet Speed: Up to 100GbE per port (4x 25Gb/s NRZ)
Host Interface: PCIe Gen4 x16 (16GT/s per lane)
SoC: 8-core Arm Cortex-A72 (BlueField-2)
On-board Memory: 16GB DDR4 ECC, 3200MT/s
On-board Storage: 64GB eMMC
Security: Crypto enabled; Secure Boot disabled
Form Factor: Full-Height Half-Length (FHHL)
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Constraints
Requires a server with a PCIe Gen4 x16 mechanical and electrical slot to use full bandwidth; functions in PCIe Gen3 x16 at reduced throughput. Compatible with NVIDIA DOCA SDK and BlueField OS releases supporting BlueField-2. Compatible with QSFP56 100GbE optical transceivers and DACs; QSFP28 optics work only when the host port and optic explicitly support QSFP56-to-QSFP28 backwards compatibility. This is the EENOT SKU with crypto enabled and Secure Boot disabled — not interchangeable with EEEOT, EECOT, or other suffix variants from a feature-set standpoint. Intended for server platforms, not desktop deployments.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests every BlueField DPU for PCIe link training, port LED health, and basic firmware bring-up before shipment. We provide expert consultation on DPU integration, DOCA/BlueField OS targeting, EU-based shipping with 1–3 day handling, and a 14-day return policy. Visit https://www.tes-itsolutions.com for our full Mellanox catalog.