ATTO Celerity FC-641E
ATTO Celerity FC-641E
Single-Port 64Gb Gen 7 Fibre Channel PCIe 4.0 HBA With SFP+
The ATTO Celerity FC-641E is a single-port 64Gb Gen 7 Fibre Channel host bus adapter for high-performance SAN connectivity over a PCIe 4.0 x8 host interface.
It includes one 64Gb LC SFP+ optical transceiver and supports 64Gb, 32Gb and 16Gb Fibre Channel infrastructure.
- 1 x 64Gb Fibre Channel port with LC SFP+ optic included.
- PCIe 4.0 x8 low-profile host adapter.
- Up to 6,400MB/s maximum transfer rate per adapter.
- Gen 7 features including Silicon Root of Trust and Fast Path latency optimisation.
Brand: ATTO Technology
Original price was: £ 3,026.61.£ 3,003.95Current price is: £ 3,003.95. | £ 3,604.74 inc VAT
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ATTO Celerity FC-641E – Product Overview
Single-Port 64Gb Gen 7 Fibre Channel
The Celerity FC-641E provides a single 64Gb Fibre Channel connection for modern SAN storage, virtualised infrastructure, AI/HPC and high-bandwidth media workflows.
PCIe 4.0 x8 Host Interface
The low-profile adapter uses an x8 PCIe 4.0 host interface and is supplied with one ATTO-branded 64Gb LC SFP+ optical module.
Backward-Compatible SAN Connectivity
The 64Gb port auto-negotiates with 32Gb and 16Gb Fibre Channel infrastructure and supports point-to-point and direct fabric/switch attach. ATTO specifies 80 buffer credits.
Gen 7 Security And Latency Features
ATTO Advanced Data Streaming (ADS™), Fast Path architecture and Silicon Root of Trust are combined with NPIV, Virtual Fabric and Brocade trunking support. ATTO360 Storage and ConfigTool utilities provide configuration, tuning and diagnostics.
ATTO Celerity FC-641E – Key Features
- Single 64Gb Gen 7 Fibre Channel port.
- Includes one 64Gb LC SFP+ optical transceiver.
- PCIe 4.0 x8 host interface.
- Low-profile form factor.
- Backward compatible with 32Gb and 16Gb Fibre Channel.
- Up to 6,400MB/s maximum transfer rate per adapter.
- 80 buffer credits.
- ATTO Advanced Data Streaming (ADS™) technology.
- Fast Path architecture for latency improvement.
- Silicon Root of Trust for firmware authentication.
- NPIV and Virtual Fabric support.
- Trunking support with Brocade switches.
- Typical operating power: 9.8W.
- Three-year standard warranty.
ATTO Celerity FC-641E – Technical Specifications
| Model | ATTO Celerity FC-641E |
| SKU | CTFC-641E-000 |
| Generation | Gen 7 Fibre Channel |
| Fibre Channel Ports | 1 |
| Fibre Channel Speed | 64Gb/s; auto-negotiates to 32Gb/s and 16Gb/s |
| Optical Interface | LC SFP+ |
| Included Optics | 1 x ATTO-branded 64Gb LC SFP+ transceiver |
| Maximum Transfer Rate | 6,400MB/s per adapter |
| Host Interface | PCIe 4.0 x8 |
| Form Factor | Low profile |
| Topologies | Point-to-point and direct fabric/switch attach |
| Fibre Channel Class | Class 3 |
| Buffer Credits | 80 |
| Features | ADS™, Fast Path, Silicon Root of Trust, NPIV, Virtual Fabric, Brocade trunking |
| OEM Mode Support | Initiator and target mode support for OEM integrations |
| Management | ATTO360 Storage; ATTO ConfigTool; ATTO vConfigTool; command-line tools |
| Supported Operating Systems | Windows, Windows Server, Linux, illumos, VMware, FreeBSD, macOS |
| Dimensions | 6.595 x 2.709 in |
| Operating Temperature | 0°C to 55°C |
| Storage Temperature | -40°C to 70°C |
| Operating Humidity | 10% to 90% non-condensing |
| Typical Power | 9.8W |
| Compliance | RoHS; TAA compliant |
| Warranty | 3 years |
ATTO Celerity FC-641E 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).
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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 manufacturer website, or contact us if unsure before ordering.


