ATTO FastFrame N4S2

ATTO FastFrame N4S2

Dual-Port 10GbE PCIe 3.0 SFP+ SmartNIC for High-Performance Data Center and Storage Networking

The ATTO FastFrame N4S2 is a dual-port 10 Gigabit Ethernet SmartNIC designed for demanding data center, storage, and media workflows.

It features a PCI Express 3.0 x8 interface and supports SFP+ optical modules, delivering up to 10Gb/s throughput per port with ultra-low latency.

This low-profile adapter is ideal for environments requiring robust connectivity, advanced offloads, and seamless integration with Windows and Linux systems.

  • Dual 10GbE SFP+ ports for high-bandwidth applications.
  • PCIe 3.0 x8 interface ensures optimal data transfer rates.
  • Supports RDMA, TCP/UDP/IP stateless offloads, and advanced hardware acceleration.
  • Low-profile form factor with included SFP+ modules and brackets.

Original price was: £ 454.22.Current price is: £ 438.95.

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Category: Ethernet NICs, Ethernet PCIe Cards
SKU: FFRM-N4S2-000
Brand: ATTO Technology

ATTO FastFrame N4S2 – Product Overview

The ATTO FastFrame N4S2 is engineered to deliver reliable, high-performance 10 Gigabit Ethernet connectivity for enterprise, media, and storage networks.

With dual SFP+ ports and a PCIe 3.0 x8 interface, it provides up to 20Gb/s aggregate bandwidth, making it suitable for bandwidth-intensive applications such as virtualization, high-performance computing, and unstructured data workflows.

Its low-profile design and comprehensive OS support ensure easy deployment in a wide range of server and workstation environments.


Advanced Performance and Low Latency

The N4S2 leverages ATTO’s fourth-generation SmartNIC technology, supporting line speeds up to 10GbE per port and delivering industry-leading latency as low as 1 microsecond.

This makes it an excellent choice for latency-sensitive workloads, including real-time media processing and high-frequency trading.


Comprehensive Protocol and Offload Support

Built-in hardware offloads for TCP/UDP/IP, RDMA over Converged Ethernet (RoCE), and stateless operations reduce CPU overhead and improve overall system efficiency.

Support for IEEE 802.3ad link aggregation and 802.1qbb priority flow control ensures robust, reliable network performance in complex environments.


Flexible Deployment and Compatibility

The adapter is compatible with both Windows and Linux operating systems, supporting a wide range of server platforms.

Its low-profile form factor and included SFP+ modules make it easy to integrate into dense server racks or compact workstations.


Ideal for Storage and Media Workflows

Designed with storage networks in mind, the N4S2 excels in environments requiring high throughput and low latency, such as SANs, NAS, and media production pipelines.

It is well-suited for applications like video postproduction, archiving, and collaborative file sharing.


Robust Reliability and Warranty

ATTO’s proven engineering ensures long-term reliability, with RoHS compliance and a standard three-year warranty for peace of mind in mission-critical deployments.


Management and Monitoring Tools

ATTO 360 management utility provides intuitive configuration, monitoring, and analytics, simplifying installation and ongoing maintenance for IT administrators.

ATTO FastFrame N4S2 – Key Features

  • Dual 10GbE SFP+ ports supporting up to 10Gb/s throughput per port.
  • PCI Express 3.0 x8 host interface for high-speed data transfer.
  • Low-profile form factor with included SFP+ optical modules and brackets.
  • Advanced hardware offloads: RDMA over Converged Ethernet (RoCE), TCP/UDP/IP stateless offloads.
  • Supports Windows and Linux operating systems.
  • Industry-leading latency as low as 1 microsecond.
  • IEEE 802.3ad link aggregation and 802.1qbb priority flow control.
  • RoHS compliant and environmentally friendly design.
  • Three-year standard product warranty.
  • Comprehensive management and monitoring via ATTO 360 utility.

ATTO FastFrame N4S2 – Technical Specifications

Product ModelN4S2
SKUFFRM-N4S2-000
Ports2 x 10GbE SFP+
Host InterfacePCI Express 3.0 x8
Form FactorLow Profile
Bracket HeightLow Profile (bracket included)
Maximum Data Transfer Rate10Gb/s per port
Aggregate Bandwidth20Gb/s
Media Type SupportedOptical Fiber
Expansion Slot TypeSFP+
Network Technology10GBase-X
Supported ProtocolsTCP/UDP/IP, RDMA over Converged Ethernet (RoCE), IEEE 802.3ad, IEEE 802.1qbb
Operating System SupportWindows, Linux
LatencyAs low as 1μs
Operating Temperature0°C to 55°C
Storage Temperature-40°C to 70°C
Humidity (Operating)10% to 90% non-condensing
Humidity (Storage)5% to 95% non-condensing
ComplianceRoHS, EN60950-1, EN60825-1, EN60825-2
Agency ApprovalsFCC Part 15 Subpart B Class A, EN55022:2010 Class A, EN55024:2010
Warranty3 Years
Device SupportedServer, Workstation
Included AccessoriesSFP+ modules, low profile bracket
Management UtilityATTO 360

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.