ATTO FastFrame N424
(2 x Transceiver Included)

ATTO FastFrame N424
(2 x Transceiver Included)

Quad-Port 25GbE SmartNIC With SFP28 Modules, PCIe 4.0 X16 And Low‑Profile Form Factor

25Gb FastFrame 4 (model N424) is a quad‑port Ethernet SmartNIC supplied with SFP28 module(s) and designed for latency‑sensitive applications.

The adapter supports 10/25GbE operation and delivers up to 25Gb/s throughput per port while connecting via a x16 mechanical and electrical PCIe 4.0 slot.

Supported operating systems include macOS, Windows and Linux, and the card supports RDMA and multiple hardware offloads to reduce host CPU load.

  • Quad 25GbE ports with SFP28 modules included.
  • 10/25GbE support and up to 25Gb/s throughput per port.
  • x16 mechanical and electrical PCIe 4.0 interface in a low‑profile form factor.
  • Support for macOS, Windows and Linux plus RDMA and TCP/UDP/IP stateless offloads.

Original price was: £ 919.19.Current price is: £ 914.95. | £ 1,097.94 inc VAT

Please Call Us For Availability Of This Item

Category: Ethernet NICs, Ethernet PCIe Cards
SKU: FFRM-N424-000
Brand: ATTO Technology

ATTO FastFrame N424 (2 x Transceiver Included) – Product Overview

The ATTO FastFrame N424 is a 25Gb FastFrame 4 quad‑port Ethernet SmartNIC intended for environments that require low latency and deterministic throughput. Supplied with SFP28 module(s), the card upgrades standard in‑box 10Gb Ethernet to 25GbE connectivity and is positioned for use in AI workflows, GPU‑accelerated systems and core Ethernet infrastructure.

Designed to integrate with ATTO’s Performance Ethernet ecosystem, the N424 benefits from tuned drivers and ATTO360 networking software to simplify setup, manage latency and apply hardware offloads that reduce CPU and memory load during heavy data transfers.


Connectivity And Throughput

The N424 offers quad 25GbE ports with SFP28 module(s) included and supports 10/25GbE operation. The device is specified to provide up to 25Gb/s throughput per port, enabling higher bandwidth links for latency‑sensitive workflows.


PCIe Interface And Form Factor

Mechanically and electrically the card implements a x16 PCIe 4.0 connection and ships in a low‑profile form factor, allowing installation in compact systems that accept low‑profile expansion cards while maximising host bus bandwidth.


Offloads And Protocol Support

The SmartNIC supports RDMA over Converged Ethernet and a range of hardware offloads including TCP/UDP/IP stateless offloads and built‑in hardware offloads. NVMe over Fabrics target offload is noted as available on 100Gb models in the FastFrame family.


Software, Management And Optimization

FastFrame NICs are supported by ATTO drivers and ATTO360 Networking software, which provides one‑click setup, centralized control and proactive problem solving. ATTO360 includes an installer that loads drivers, the management software and dependencies needed to run RDMA.


ExpertAI And Troubleshooting

ATTO360 includes ExpertAI, a built‑in advisor that provides real‑time and historical metrics, identifies bottlenecks and suggests solutions. The ecosystem is designed to reduce setup time and accelerate troubleshooting.


Performance Characteristics

ATTO positions FastFrame NICs to outperform commodity hardware; FastFrame NICs are claimed to outperform such hardware by up to 30% or more when used with ATTO drivers and ATTO360 Networking software. Fourth‑generation FastFrame products support line speeds up to 100GbE and report latency as low as 1μs for appropriate models.


Thermal Options And Workstation Variants

FastFrame AIR is described as a workstation‑optimised family with active cooling and advanced thermal engineering including custom heat‑baffling, a precision fan/blower assembly and optimized airflow channels to sustain throughput where airflow is limited.


Compliance, Warranty And Inclusion Notes

The product listing specifies RoHS compliance and a 3 year standard product warranty. Shop documentation for the FastFrame family also notes that some finished goods (for example N412 SKUs) include a low profile bracket with the adapter.

ATTO FastFrame N424 (2 x Transceiver Included) – Key Features

  • Quad 25GbE ports with SFP28 module(s) included, providing higher bandwidth per port than standard 10GbE adapters.
  • 10/25GbE support with up to 25Gb/s throughput per port, enabling faster file movement and reduced transfer times.
  • x16 mechanical and electrical PCIe 4.0 interface to maximise host bus bandwidth for sustained data flows.
  • Low‑profile form factor suitable for systems with limited expansion space while maintaining high performance.
  • Support for macOS, Windows and Linux operating systems, with ATTO drivers and applications available for each platform.
  • RDMA over Converged Ethernet support to reduce CPU overhead and improve throughput and latency for supported workflows.
  • Hardware offloads including TCP/UDP/IP stateless offloads and built‑in offload engine to lower host CPU and memory usage.
  • NVMe over Fabrics target offload noted for 100Gb models in the FastFrame family, enabling storage offload capabilities on higher‑speed adapters.
  • Includes ATTO latency management technology to help deliver deterministic latency in latency‑sensitive applications.
  • Designed to integrate with ATTO360 Networking for one‑click setup, centralized management and proactive problem solving.
  • ATTO ExpertAI provides built‑in advisory metrics and suggestions to identify bottlenecks and optimise system configuration.
  • Part of a product family that supports line speeds up to 100GbE and reports latency as low as 1μs for fourth‑generation FastFrame models.
  • RoHS compliant and covered by a 3 year standard product warranty.

ATTO FastFrame N424 (2 x Transceiver Included) Product Downloads

ATTO Technology Delivery Information

Generally, next working day delivery services (UK Mainland) are available on standard ATTO Technology Delivery orders placed before 2 pm (subject to stock availability).

Non-timed deliveries should be delivered between 9 am and 6 pm.

Orders placed after 2 pm on Fridays and weekends will be processed as normal the following Monday.

Orders placed on Bank Holidays will be processed the next working day.

If urgent, please call one of our helpful account managers so they may double check everything for you, enabling you to place your order with confidence.

Please note: these product details are for guide purposes only, and may contain errors.

We always recommend double-checking the product specs and features on the the manufacturer website,  or contact us if unsure before ordering.

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