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ATTO Celerity FC-161P
Single-Channel 16Gb/s Gen 6 Fibre Channel PCIe 3.0 Host Bus Adapter (includes SFP)

ATTO Celerity FC-321E

ATTO Technology Products
ATTO Celerity Fibre Channel HBAs
ATTO Celerity FC-161P Single Channel 16Gb Gen 6 FC to x8 PCIe 3.0 Host Bus Adapter, Low Profile, LC SFP+ included
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The ATTO Celerity FC-161P leverages two next-generation storage technologies – PCIe 3.0 interconnect and 16-Gigabit Fibre Channel to provide an advanced storage connectivity solution with high performance, intelligence and scalability. Celerity FC-161P 16Gb/s single-channel HBAs deliver up to 1600 MB/s in a single PCIe slot solution, allowing original equipment manufacturers and system integrators to design state-of-the-art data infrastructures.

Meeting tomorrow's connectivity needs today, Celerity Fibre Channel Host Bus Adapters (HBAs) increase overall Fibre Channel system performance and drive intelligence all the way to the edge of the SAN utilizing ATTO's Advanced Data Streaming (ADS) Technology. Included with all ATTO HBAs are easy-to-use utilities ConfigTool enabling management, monitoring and configuration which leverages an intuitive GUI.

ATTO Celerity 16Gb Gen 6 Fibre Channel Host Bus Adapters

ATTO Celerity Fibre Channel host bus adapters (HBAs) deliver the fastest data throughput (both MB/s and IOPs) available for today's most demanding storage environments, including physical and virtual datacenters, tape streaming and backup, rich content delivery, and server clustering.

Technical Features

  • Single-, daul-, and quad-channel configurations (SFP included for single and daul)
  • 1600 MB/s per channel throughput
  • Driver support for Windows, Linux, macOS, illumos, VMware and more
  • Exclusive Advanced Data Streaming (ADS) technology
  • ATTO ConfigTool for customized performance settings
  • Proven interoperability with leading storage hardware and software vendors
  • Support for N_Port ID Virtualization and Virtual Fabric
  • Target mode (Developer, SCST and LIO) support
  • Three-year standard product warranty
  • Low power consumption

MultiPatch Director

  • Multiple paths to storage for improved data integrity and reliability
  • High-performance shared storage for workgroups
  • Load-balancing and failover in heterogeneous OS environments
  • Available through authorized OEMs

Industry Proven Technology

ATTO Technology, Inc., has 30 years of experience developing and delivering reliable first-to-market Fibre Channel storage connectivity solutions to customers. Celerity Fibre Channel connectivity solutions are consistently the highest-performing host bust adapters (HBAs) for server virtualization deployments, faster backups and scalable cloud initiatives. Offering performance to match new multi-core processors and faster PCIe 3.0 server host bus architectures, the integrated family of Celerity 16Gb Gen 6 Fibre Channel HBAs boast an extensive list of customer design wins and certifications with respected industry partners.

Flexible Connectivity Solutions

With single-, dual-, and quad-channel configurations, Celerity Fibre Channel HBAs are an ideal solution for users looking to achieve the highest I/O and data throughput for advanced video and enterprise-class IT applications. Celerity 16Gb Gen 6 HBAs offer driver support for Windows, Linux, macOS, illumos, VMware and more, providing a single connectivity solution for customers with heterogeneous operating system environments.

Performance Engineered

Celerity HBAs are designed to provide fast, redundant and highly available connectivity to Fibre Channel storage and are engineered to manage latency for real-time applications. An ATTO exclusive, Advanced Data Streaming (ADS) technology provides controlled acceleration of data to deliver the most consistent performance and reliable data transfer. Specialized Fibre Channel drivers with support for multiple OS platforms and OEM-specific solutions, such as target mode and multipathing, make ATTO the premier choice for high-performance Fibre Channel storage area network (SAN) connectivity.

Advanced Management Tools

The easy-to-use ATTO ConfigTool features an intuitive GUI that simplifies the installation, management and monitoring of the HBA. With advanced troubleshooting and performance tuning capabilities, Celerity HBAs provide users with sophisticated diagnostics and the flexibility to control settings for specific applications.


Celerity Fibre Channel HBAs deliver high-performance and reliable connectivity solutions for the most demanding storage environments, including physical and virtual data centers, tape streaming and backup, rich content delivery and server clustering. Celerity HBAs enable users to achieve the ultimate in I/O performance for real-time and transactional applications.

Advanced Data Streaming (ADS)

Latency-management technology that controls the acceleration of data transfers to move large amounts of data faster and more efficiently.


Powering the modern data center

Celerity HBAs unleash the performance of all-flash data centers with the support of NVMe fabric technology for demanding workloads that require extreme performance, ultra-low latency, and storage persistency to shared storage resources.

Engineered for performance

Celerity HBAs have an advantage over the leading competitor embedded directly in the processor's architecture. The ATTO controller features multiple cores, providing full IOPS performance to a single port in "active standby" mode on a dual-port HBA. If a port, cable or SFP fails a port on the ATTO adapter can support up to 2.5X as many IOPS as the competitive HBA. ATTO Celerity HBAs allow sustained maximum performance, enabling users to continue to meet service level agreements.

Flexible configuration options

Available in low-profile single-, dual-, and quad-port versions, ATTO Celerity HBAs are backward compatible, reducing the complexity of deploying and managing the SAN, and take full advantage of advancements for reliability and forward error correction to improve network performance and resiliency.

Connect your workstation to enterprise storage

ATTO Celerity HBAs, featuring Multipath Director technology, are the only solution that allows direct connectivity to enterprise storage not just for servers, but also Windows, Linux, and macOS workstations. They provide load balancing and path failover protection to improve overall Fibre Channel SAN efficiency with consistent uninterrupted access to your data.


Optimize performance to power real-time decision-making

Move large volumes of data with fast, predicable and deterministic response time by optimizing performance up to 3200MB/s per channel. Built into every Celerity HBA, ATTO Advanced Data Streaming (ADS™) technology manages latency by providing controlled acceleration for smooth data streaming and allows you to maintain the highest consistent performance in data intensive environments.

Advanced Data Streaming (ADS)

Continuous availability across your networkContinuous availability across your network

Whether you're looking for a disaster recovery solution, downtime avoidance or a higher level of availability, Celerity HBAs make it possible to have longer distances between your servers and storage. Featuring 5X more buffer credits than the competition, Celerity HBAs support more data in-flight allowing you to extend your connection to storage up to 10 km without degrading throughput.

Double your bandwidth

Celerity Gen 6 HBAs deliver 2x greater bandwidth when compared to previous generations. They are purpose-built to address the performance, reliability and scalability requirements of hyper-scale virtualization, SSD technology, and new data architectures.

Accelerating tomorrow's technologies today

From artificial intelligence and big data analytics to augmented and virtual reality, ATTO Celerity HBAs, in partnership with NVIDIA, are accelerating GPU-based data and graphic-intensive applications while enhancing overall performance.



High compatibility and broad interoperability

We are constantly testing and certifying our products with third-party vendors, from OS and servers to switches and storage, to ensure the widest range of compatibility. ATTO works closely with industry leaders to ensure certified interoperability allowing you to deploy robust storage area network (SAN) infrastructures with proven best practices.

High compatibility and broad interoperability


  CTFC-161P CTFC-162P CTFC-164P
ATTO Celerity CTFC-161P CTFC-162P CTFC-164P
Ports Single Dual Quad
Bus Characteristics x8 PCIe 3.0 x8 PCIe 3.0 x8 PCIe 3.0
Form Factor Low Profile Low Profile Low Profile
Max Transfer Rate 1600 MB/s 3200 MB/s 6400 MB/s
Key Features
  • Auto Negotiation to 16Gb, 8Gb and 4Gb devices
  • Support point-to-point and direct fabric/switch attach
  • ANSI Fibre Channel: FC-FS, FCP
  • Flash ROM for easy field upgrades
  • Fibre channel Class 3 Support
  • Buffer Credits: 80 (161P, 162P), 40 (164P)
  • Pluggable optical LC SFP+, SFF for 164P
  • Initiator and target mode (OEM) support
  • Supports FDMI and WMI
  • Supports NPIV and Virtual Fabric
  • Supports Thunderbolt technology
User Benefits
  • Superior performance for enterprise applications
  • Increased switch port availability
  • Seamless integration into existing fibre channel SANs
  • Extensive certification with SAN infrastructure components
  • Support for virtualized server environments
  • Quad port card maximizes usage of server slots
Management Tools
  • ATTO ConfigTool
  • ATTO vConfigTool with Latency Scout
Bus Specifications
  • x8 PCI Express 3.0 host interface
  • Supports PCI Express Base Spec 3.0
  • Supports FC-PI-6
  • Supports SFF-8431
  • Supports PCI Express CEM Spec 3.0
  • PCI Hot Plug spec 1.1
External Connectivity
  • Full height brackets for FC-162P, FC-161P
  • Low profile brackets for FC-164P
  • Single (1), Dual (2) pluggable 16Gb optical LC SFP+ modules included, SFF for 164P
  • External LEDs for boot status and visual indication of the operating state
Operating System Support
  • Windows
  • Windows Server
  • Linux
  • illumos
  • VMware
  • FreeBSD
  • macOS
Agency Approvals
  • UL, cUL, CSA: US and Canada
  • TUV: Europe
  • FCC Class A: US
  • ICES: Canada
  • EMC Directives (CE Mark) Class A: Europe
  • VCCI class A: Japan
  • BSMI class A: Taiwan
  • MSIP (Formerly KCC): Korea
  • RCM: Australia
Compliance RoHS (meets EU and China standards)
Dimensions Length 6.595"
Height 2.709"
Length 6.595"
Height 2.709"
Length 6.600"
Height 2.708"
Hardware Operating Temperature
  • Temperature: 0°-55° C
  • Humidity: 10%-90% non-condensing
Storage Operating Temperature
  • Temperature: -40°-70° C (-40°-157° F)
  • Humidity: 5%-90% non-condensing
Operating Power (Typical) 11.9W 10.3W 11.9W
Warranty Three-year standard product warranty


ATTO Technology Celerity Fibre Channel Host Bus Adapter

Responsible for moving valuable data, the host adapter is one of the most critical components in a Fibre Channel Storage Area Network (SAN). Why trust an integral part of the network fabric architecture to an 'average' adapter? ATTO Fibre Channel host adapters are highly-intelligent data movement engines that transfer information efficiently and flawlessly using ATTO's unique, industry-leading hardware and software architecture.

The ATTO Difference - Advanced Data Streaming

Latency management technology is built into ATTO host bus adapters (HBAs) and RAID hardware. Advanced Data Streaming manages latency by providing controlled acceleration for smooth data streaming to maintain the highest consistent performance. ADS ensures best-in-industry data transfers for high-bandwidth applications.


Download the ATTO Celerity 16Gb Gen 6 Fibre Channel HBAs Datasheet (.PDF)

Pricing Notes:

ATTO Technology Products
ATTO Celerity Fibre Channel HBAs
ATTO Celerity FC-161P Single Channel 16Gb Gen 6 FC to x8 PCIe 3.0 Host Bus Adapter, Low Profile, LC SFP+ included
Get a Quote!