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 NT40E3 SmartNIC
with Link-Capture™ Software


The NT40E3 SmartNIC provides full packet capture and analysis of Ethernet LAN at 40 Gbps with zero packet loss for all frame sizes. Intelligent features accelerate application performance with extremely low CPU load. Flexible time synchronization support is included with a dedicated PPS/PTP port.

1G/10G port speed automatically selected by the transceiver modules used.

To accommodate seamless Integration in any server, the NT40E3 is available with active or a passive cooling. The passive cooling model is also NEBS compliant to meet telco requirements.



For any link speed at any time


From 1-100G



Out of the box solution


Multiple FPGA SmartNICs in one server


Synchronize multiple servers



Accelerate your application


Full throughput with zero packet loss



Multiple speeds in one server


More powerful server usage

NT40E3-4-PTP 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

Financial latency measurement

Our solutions deliver data to applications that make delays visible by capturing all transactions and measuring the exact time of each trading event up to the nanosecond. This enables financial institutions to guarantee optimal performance and transparency of their trading infrastructure.

Network performance management

Our solutions deliver data to applications that monitor and troubleshoot all network activity in real time, enabling analysis of network performance metrics from multiple locations in the network. This helps network managers to optimize infrastructure efficiency.

Troubleshooting and compliance

Our solutions deliver data to applications that provide access to all information that has passed through the network in the order it was received. This allows network managers to comply with regulations, as well as analyze problems from historical data. It also allows them to take actions that will prevent problems from recurring in the future.

Revenue and services optimization

Our solutions deliver data to applications that can analyze subscriber behavior as well as specific app usage, enabling operators to adjust their services and business models to maximize value.

Ultimate tech specs

Network Interfaces • Standard: IEEE 802.3 10 Gbps Ethernet LAN
• Physical interface: 4 x SFP+ portsSFP28 ports
Supported Modules • Supported SFP modules: Multi-mode SX, single-mode LX and ZX, 1000BASE-T or 10/100/1000BASE-T
• Supported SFP+ modules: Multi-mode SR, singlemode LR and ER, 10GBASE-CR
• Supported dual-rate modules: Multi-mode SR and singlemode LR
Performance • Capture rate: From 4 x 1 Gbps to 4 x 10 Gbps
dependent on transceiver module used
• Transmit rate: From 4 x 1 Gbps to 4 x 10 Gbps
dependent on transceiver module used
• CPU load: < 5%
On-board IEEE 1588-2008 (PTPV2) • Full IEEE 1588-2008 stack
• Packet Delay Variation (PDV) filter
• PTP master and slave in IEEE 1588-2008 default profile
• PTP slave in IEEE 1588-2008 telecom and power profiles
Hardware Time Stamp • Resolution: 1 ns
• Stratum 3 compliant TCXO
Time Formats • PCAP-ns/-μs
• NDIS 10 ns/100 ns
• UNIX 10 ns
Time Synchronization • External connectors: Dedicated pluggable
• Internal connectors: 2 for daisy-chain support
Pluggable Options for Time Synchronization • PPS for GPS and CDMA
• IEEE 1588-2008 (PTP v2)
• NT-TS for accelerator-to-accelerator time sync
Host Interface and Memory • Bus type: 8-lane 8 GT/s PCIe Gen3
• PCIe performance: 48 Gbps full duplex
• Onboard RAM: 4 GB DDR3
• Flash: Supports 2 boot images
Statistics • RMON1 counters plus jumbo frame counters per port
• Frame and byte counters per color (filter) and per host buffer
• Counter sets always delivered as a consistent time-stamped snapshot
Environment for NT40E3-4-PTP • Power consumption: 27 Watts including SFP+ SR modules
• Operating temperature: 0° to 45°C (32° to 113°F)
• Operating humidity: 20% to 80%
• MTBF: 297,993 hours according to UTE C 80-810
Environment for NT40E3-4-PTP-NEBS • Operating temperature (up to 1,800 m and airflow of at least 2,5 m/s):
–5 °C to 55 °C (23 °F to 131 °F) measured around the SmartNIC
• Operating humidity: 5% to 85%
Sensors • Temperature
• Power
OS Support • Linux
• FreeBSD
• Windows
Software • Easy-to-integrate NT-API
• libpcap support
• WinPcap support
• Software PTP stack
Physical Dimensions • ½-length PCIe
• Full-height PCIe
Regulatory Approvals and Compliances • PCI-SIG®
• NEBS level 3
• CE
• CB
• RoHS
• cURus (UL)

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Find out if the Napatech NT40E3 SmartNIC is right for you
– our engineers will help you all the way.

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