£ 1,618.95 | £ 1,942.74 inc VAT
ATTO Celerity FC-644E
ATTO Celerity FC-644E
Quad-Port 64Gb Gen 7 Fibre Channel PCIe 4.0 x16 HBA With 4 x SFP+
The ATTO Celerity FC-644E is a quad-port 64Gb Gen 7 Fibre Channel host bus adapter for dense, high-bandwidth SAN connectivity through a PCIe 4.0 x16 host interface.
It includes four 64Gb LC SFP+ optical transceivers and supports 64Gb, 32Gb and 16Gb Fibre Channel infrastructure.
- 4 x independent 64Gb Fibre Channel ports with optics included.
- PCIe 4.0 x16 low-profile host adapter.
- Up to 25.6GB/s maximum aggregate transfer rate per adapter.
- Gen 7 security, latency and virtualisation features.
Brand: ATTO Technology
Original price was: £ 6,892.87.£ 6,743.95Current price is: £ 6,743.95. | £ 8,092.74 inc VAT
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ATTO Celerity FC-644E – Product Overview
Quad-Port 64Gb Gen 7 Fibre Channel
The Celerity FC-644E provides four 64Gb Fibre Channel connections from a single adapter for dense SAN fabrics, multi-path storage, AI/HPC and high-resolution media workflows.
PCIe 4.0 x16 Host Interface
The low-profile adapter uses a PCIe 4.0 x16 host interface to support four active high-speed Fibre Channel paths and includes four ATTO-branded 64Gb LC SFP+ optical modules.
Flexible Fibre Channel Integration
Each port auto-negotiates with 32Gb and 16Gb Fibre Channel infrastructure and supports point-to-point and direct fabric/switch attach, with 80 buffer credits per port.
Gen 7 Security And Latency Features
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-644E – Key Features
- Four independent 64Gb Gen 7 Fibre Channel ports.
- Includes four 64Gb LC SFP+ optical transceivers.
- PCIe 4.0 x16 host interface.
- Low-profile form factor.
- Backward compatible with 32Gb and 16Gb Fibre Channel.
- Up to 25.6GB/s maximum aggregate transfer rate per adapter.
- 80 buffer credits per port.
- 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: 24.9W.
- Three-year standard warranty.
ATTO Celerity FC-644E – Technical Specifications
| Model | ATTO Celerity FC-644E |
| SKU | CTFC-644E-000 |
| Generation | Gen 7 Fibre Channel |
| Fibre Channel Ports | 4 |
| Fibre Channel Speed | 64Gb/s per port; auto-negotiates to 32Gb/s and 16Gb/s |
| Optical Interface | LC SFP+ |
| Included Optics | 4 x ATTO-branded 64Gb LC SFP+ transceivers |
| Maximum Transfer Rate | 25.6GB/s per adapter |
| Host Interface | PCIe 4.0 x16 |
| Form Factor | Low profile |
| Topologies | Point-to-point and direct fabric/switch attach |
| Fibre Channel Class | Class 3 |
| Buffer Credits | 80 per port |
| 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 | 24.9W |
| Compliance | RoHS; TAA compliant |
| Warranty | 3 years |
ATTO Celerity FC-644E 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.
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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 manufacturer website, or contact us if unsure before ordering.


