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NT100A01 SmartNIC

Test form, fit, and function. Our engineers will help you all the way.

NT50B01 SmartNIC with
Link-Virtualization™ Software


Low-Profile PCIe SmartNIC
The NT50B01 SmartNIC enables 2×10/25G applications, depending on your choice of software. This provides flexibility to create high-performance solutions in 1U server platforms for 10/25G network infrastructures.

NT50B01 is a low-profile PCIe card specifically engineered to reduce footprint without compromising on performance. The card not only saves rack space and reduces TCO – it also provides outstanding agility and scalability for the future. The design delivers best-of-breed reliability and includes a proprietary full body heatsink developed to ensure optimal thermal performance for all critical components.

Based on a Xilinx Kintex UltraScale+ FPGA, NT50B01 can be reconfigured to support specific SmartNIC functionality. By exploiting the FPGA programmability, features and capacity can be extended to continually accommodate data growth and changing industry standards.

Open vSwitch (OVS) Hardware Offload
NT50B01 comes with fully qualified software, compliant with popular operating systems to enable easy qualification and quick deployment.

Combined with Napatech Link™ Virtualization Software, the NT50B01 SmartNIC provides a hardware-based solution for full Open vSwitch (OVS) offload – dramatically increasing performance while reducing CPU utilization.

Link™ Virtualization Software supports a broad range of applications and use cases and can quickly improve an organization’s ability to monetize virtualized applications.

Highlighted features

  • OpenStack support
  • OVS/DPDK hardware offload
  • VirtIO w/vDPA
  • Live Migration
  • VM Monitoring, North-South & East-West packet forward to local or remote destination Open vSwitch DPDK

Open vSwitch



Compatible Virtualization Software

Link-Virtualization™ Software

LinkVirtualization Software

Link-Virtualization Software offloads and accelerates the
Open vSwitch (OVS) dataplane to provide increased network performance
and better CPU efficiency with lower complexity.



For any link speed at any time


For 10/25G port speeds



Out of the box solution


Multiple FPGA SmartNICs in one server


Synchronize multiple servers



Accelerate your application


Support for Virtualized Environments



Multiple speeds in one server


More powerful server usage

What our engineers say:

Designed for epic performance.

Lower power, space, and cooling.

NT50B01 SmartNIC

To generate and control the airflow, the Napatech design contains a blower that takes in air from the top and bottom of the SmartNIC, thereby doubling the amount of air and ensuring superior cooling.


  • Durable design for extended real-life operation
  • Free choice of server platform
  • Reduced noise and power-consumption as server-fans can run at minimum speed
  • Freedom to pack unlimited FPGA SmartNICs into a standard server


  • No airflow dependency to server
  • Well-defined cooling of all critical components
  • Guaranteed device hot spot temperatures
  • Maximized airflow, ensuring optimal thermal performance
  • Dissipated energy exhaled outside server through front plate cutouts
  • Significant reduction in temperature drop between FPGA die and heat sink surface
  • Mechanical stiffener enabling higher screw torque for fastening heatsink to the PCB


Napatech upholds the highest quality, environmental and safety standards, and complies with all applicable regulations across regions. This helps our customers to realize a seamless integration without delays – and ensures error-free operation throughout the product life cycle.

Ethernet Front Port Compliance

The SmartNIC design maximizes mechanical and electrical front port margin, securing trouble-free operation with the optical or electrical modules of the customer’s choice.

The thermal design is validated dissipating the maximum power level as standardized for the given form factor. Margin on the data interface has been optimized tuning the equalization parameters of the transceivers hosting the front port channel, maximizing EYE margin to the relevant standard.

EMC Compliance

All Napatech designs have passed EMC compliance testing for major regions, including Europe and North America. By ensuring compliance as an integral part of the design, the risk of delays is eliminated. Moreover, the EMC testing has been performed in a mainstream server, potentially directly applicable to the use case.

Environmental Compliance

The end product (server + installed SmartNIC) must adhere to regional environmental legislation. To enable trouble-free server integration, Napatech SmartNICs are manufactured using only materials that fully comply with the current RoHS, REACH and proprietary Tier 1 legislation.

Full compliance from early inception eliminates the risk delays and product withdrawal due to authority intervention.

Event Handling & System Monitoring

In order for the SmartNIC to become an integral part of the server environment and maximize uptime, it needs to monitor and expose key performance metrics to the application during operation. Napatech SmartNICs monitor the following metrics:

  • Blower speed
  • Hot spot temperatures
  • Key supply voltages and currents
  • PCI protocol events
  • General system events

PCI Compliance

With the PCI interface on the SmartNIC dictated by the server plane, the hardware maximizes mechanical and electrical PCI margin, ensuring trouble-free operation in the server and server slot(s) of the customer’s choice. All designs have passed relevant PCI-SIG tests and have been adopted on the PCI-SIG integrators list.

Safety Compliance

To enable trouble-free server integration, Napatech SmartNICs are fully compliant with all applicable safety standards.

By ensuring safety compliance as an integral part of the SmartNIC design, the risk of delays is eliminated. Compliance testing is performed in a mainstream server, potentially directly applicable to the use case.

Conflict Minerals Compliance

To ensure quick and trouble-free server integration, Napatech SmartNICs are manufactured using only materials that fully comply with the relevant Conflict Mineral Legislation. For US based SmartNIC integrators, this facilitates submission of the mandatory Conflict Mineral report to SEC.

Shock & Vibration Robustness

Many server environments expose the SmartNIC to substantial shock and vibration, predominantly during the transportation phase. To ensure trouble-free server integration and operational robustness throughout the product life cycle, validated design aspects include:

  • Cooling enclosure for superior mechanical stiffness
  • Key exposed components are under-filled (glued) to the PCB
  • Shock robustness validated against JESD22-B110A
  • Vibration robustness validated against ASTM D4169-09

Used across industries

Telecom operators and Cloud-based data centers

Break the cost/performance barrier when upgrading to 25G.

With the increasing number of telecom carriers and CSPs migrating to 25G solutions, the need to continually upgrade network performance is growing.

Cloud-based data center network architectures, 5G/edge computing and the Internet of Things (IOT) are driving an incredible scale in bandwidth, number of users, and network flows. These factors are driving the explosive growth in the 25GbE server-class Ethernet adapter market with programmable SmartNICs offering the highest CAGR in all segments in the Ethernet NIC market

The Napatech NT50B01 SmartNICs deliver complete platforms to address numerous demanding networking and security workloads including hardware offloladed virtual switching to accelerate NFV, and 4G/5G mobile applications This flexible solution save rack space and reduce the overall solution cost by offloading virtual switching workloads returning valuable CPU cycles to the general purpose CPU for application processing.

Ultimate tech specs

  • Full OVS-DPDK hardware offload
  • Switching performance @ 64B
    • 300Mpps P2P
    • 65Mpps PVP (ideal)
    • 38Mpps PVP (0.001% drop-limit)
  • OpenStack support (Victoria & Train)
  • VirtIO
    • Fully accelerated VirtIO 1.1 with vDPA
    • Transparent 0.95/1.0 support
  • Live Migration (VirtIO 1.1)
  • OVS statistics
  • VM-to-VM mirroring for analytics, SLA monitoring, regulatory compliance
  • Non-degrading HW Megaflow cache for tracking billions of flows
  • Extensive and configurable match processing for L2-4 packet headers
  • VLAN/VXLAN encapsulation/decapsulation
  • Q-in-Q
  • RSS load balancing
  • Link aggregation (active/active and active/standby)
  • Jumbo frame support
  • Quality of Service (QoS)
  • IPv4/v6
  • Hardware QoS
Supported pluggable modules
  • 10GBASE-SR, CR, LR, ER
  • 25GBASE-SR, LR, LR-BiDi
  • Host OS: RedHat 8, Ubuntu Server LTS (On Request)
  • Client VM supports
    • Data Plane Development Kit (DPDK)
    • Linux NetDev (Kernel 5.0+)
  • Xilinx XCKU15P FPGA
  • 10 GB DDR4 SDRAM
  • PCIe Gen3 16 lanes @ 8 GT/s
  • 2 × SFP28 network ports
  • Flash memory with support for two boot images
  • Physical dimensions: 1⁄2-length and 1⁄2-height PCIe
  • Weight (excl. pluggable modules): 350 g
  • MTBF according to IEC TR 62380 (UTE C 80-810 –2004): 991,182 hours
  • Power consumption including 25GBASE-SR modules and typical traffic load: 24 Watts
Environment for NT50B01
  • Operating temperature: –5 °C to 55 °C (23 °F to 131 °F) measured around the SmartNIC
  • Operating humidity: 5% to 85% • Altitude: < 1,800 m
  • Airflow: >= 3.5 m/s
Regulatory Approvals and Compliances
  • PCI-SIG®, NEBS level 3, CE, CB, RoHS, REACH, cURus (UL), FCC, ICES, VCCI, RCM
Orderable products  
Product: Data Rate:
NT50B01-2×10/25 2×10/25 Gbps

Resources and downloads

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Find out if the Napatech NT50B01 SmartNIC is right for you
– our engineers will help you all the way.