Solarflare Flareon Ultra SFN8542 Server Adapter

$940.00
$746.43 SAVE $193.57
4 availableas of 06/05/2026

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Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

Overview

About the Solarflare Flareon Ultra

The new Flareon™ Ultra SFN8500 adapter family provides Solarflare's best performance yet, with higher bandwidth, lower latency and higher packet rate. The SFN8500 family adapters are based on a common hardware platform, enabling customers to configure the features and performance they want to meet the particular needs of each application. Capabilities such as ultra-low latency, Onload kernel bypass, class leading clock synchronization accuracy providing MIFID II readiness, SolarSecure Filter Engine, SolarCapture and more can be enabled to run on any SFN8500 adapter on the network, making this the one Ethernet adapter to deploy across your data center or cloud infrastructure.

CPU-Efficient Networking

The Flareon Ultra SFN8542 dual-port 40G Ethernet QSFP+ server adapter delivers faster, more efficient processing of network traffic to accelerate a wide range of applications. The SFN8542 has 16 lanes of PCIe 3.1 making it an ideal workhorse for 40GbE data center and cloud workloads, providing high-bandwidth, high packet rate and CPU-efficient processing of network traffic. The SFN8542 can be configured as a dual-port 40GbE or a quad-port 10GbE adapter as one QSFP+ port can also operate as four 10GbE SFP+ ports.

Configurable Software

When configured with Solarflare software licenses, the SFN8542 can address ultra- low latency applications, highly accurate clock synchronization and hardware time stamping, packet filtering, packet capture and more. Adapters can be purchased pre-configured with popular software bundles, or configured on-site with software options.

Ultra-Low Latency

The platform's hardware optimizes packet flow to and from the user application. When licensed for ultra-low latency, it delivers unrivaled sub-microsecond TCP and UDP latency. With Onload, the industry's best application-to-application performance is enabled via Solarflare's unique and patented kernel bypass techniques.

Accelerating Applications

The SFN8542 is ideal for scale-out cloud, web and CDN application environments. Solarflare adapters are used in a wide range of use cases, including Software-defined networking (SDN), Network functions virtualization (NFV), web content optimization, DNS acceleration, web firewalls, load balancing, NOSQL databases, caching tiers (Memcached), web proxies, video streaming and storage networks. The SFN8542 also provides the ideal link between fast NVMe storage and the network. In addition when used with Onload, the SFN8542 further reduces host processing overhead and accelerates web and cloud traffic. When used with SolarSecure Filter Engine, the SFN8542 provides an additional layer of defense against DDoS attacks at the network ingress point to the server. Attacks can be absorbed without degradation of "good" traffic, enabling a 3 to 4x improvement in packet- level filtering server headroom.

Scalable, High-Performance Virtualization

Solarflare is the proven leader in VM density and performance, and the SFN8542 raises the bar with 2048 vNICs, SR-IOV, overlay network acceleration e.g. VXLAN, NVGRE. In addition, the SFN8542 supports kernel bypass running in a guest VM, so users can run ultralow latency Onload or SolarCapture in a virtualized or cloud environment.

The SFN8542 is also fully flow-aware, providing flexible layer 2-4 flow processing and flow steering natively. The benefits are efficient flow acceleration in almost every environment from the data center to the stock exchange.

Technical specifications

Technical Specifications of the Solarflare Flareon Ultra

General Information

General Information specifications
Manufacturer Solarflare Communications, Inc
Manufacturer Part Number SFN8542
Manufacturer Website Address http://www.solarflare.com
Brand Name Solarflare
Product Line Flareon Ultra
Product Name Flareon Ultra SFN8542 Server Adapter
Packaged Quantity 1
Product Type 40Gigabit Ethernet Card

Interfaces/Ports

Interfaces/Ports specifications
Host Interface PCI Express 3.1 x16
Total Number of Ports 2

I/O Expansions

I/O Expansions specifications
Expansion Slot Type QSFP+

Media & Performance

Media & Performance specifications
Media Type Supported Optical Fiber

Network & Communication

Network & Communication specifications
Network Technology 40GBase-X

Physical Characteristics

Physical Characteristics specifications
Form Factor Plug-in Module
Height 2.7"
Width 6.6"

Miscellaneous

Miscellaneous specifications
Device Supported Server
Green Compliant Yes

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Shipping and returns

Free shipping on most items when you spend $100 or more. In-stock items ship on the next open shipment slot. The buy box above shows the live order-by countdown and the estimated arrival date.

Need to send it back? Start a return online with a Request RMA and our team will take care of you. Keep the original packaging. Items must be returned in the condition received.

Questions about shipping or returns? Chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.