ATTO Celerity FC-321E
ATTO Celerity FC-321E
Single-Port 32Gb Fibre Channel PCIe 3.0 HBA With SFP+
The ATTO Celerity FC-321E is a single-port 32Gb Fibre Channel host bus adapter for high-performance SAN connectivity over a PCIe 3.0 x8 host interface.
It supports 32Gb, 16Gb and 8Gb Fibre Channel and includes one 32Gb LC SFP+ optical transceiver.
- 1 x 32Gb Fibre Channel port with LC SFP+ optic included.
- PCIe 3.0 x8 low-profile host adapter.
- Up to 6,400MB/s full-duplex throughput per channel.
- ATTO Advanced Data Streaming (ADS™) technology and broad OS support.
Brand: ATTO Technology
£ 1,541.95 | £ 1,850.34 inc VAT
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ATTO Celerity FC-321E – Product Overview
Single-Port 32Gb Fibre Channel
The Celerity FC-321E provides one 32Gb Fibre Channel link for SAN storage, media, virtualisation and enterprise workflows that require predictable high-bandwidth access.
PCIe 3.0 x8 Host Interface
The low-profile adapter uses an x8 PCIe 3.0 host connection and includes a 32Gb LC SFP+ optical transceiver for direct integration into compatible Fibre Channel infrastructure.
Backward-Compatible SAN Connectivity
Auto-negotiation supports 32Gb, 16Gb and 8Gb Fibre Channel, with fabric and point-to-point operation and 80 buffer credits.
ATTO Streaming And Management
ATTO Advanced Data Streaming (ADS™) technology is designed to manage latency and maintain consistent transfers. ATTO management software provides configuration and diagnostics across Windows, Linux, macOS, VMware, FreeBSD and illumos environments.
ATTO Celerity FC-321E – Key Features
- Single 32Gb Fibre Channel port.
- Includes one 32Gb LC SFP+ multimode optical transceiver.
- PCIe 3.0 x8 host interface.
- Low-profile card format with bracket support.
- Backward compatible with 16Gb and 8Gb Fibre Channel.
- Up to 6,400MB/s full-duplex throughput per channel.
- Fabric and point-to-point topology support.
- 80 buffer credits.
- Supports NPIV and Virtual Fabric.
- ATTO Advanced Data Streaming (ADS™) technology.
- Typical operating power: 9.8W.
- Three-year standard warranty.
ATTO Celerity FC-321E – Technical Specifications
| Model | ATTO Celerity FC-321E |
| SKU | CTFC-321E-000 |
| Fibre Channel Ports | 1 |
| Fibre Channel Speed | 32Gb/s; auto-negotiates to 16Gb/s and 8Gb/s |
| Optical Interface | LC SFP+ |
| Included Optics | 1 x 32Gb LC SFP+ multimode transceiver |
| Maximum Full-Duplex Throughput | Up to 6,400MB/s per channel |
| Host Interface | PCIe 3.0 x8 |
| Form Factor | Low profile |
| Topologies | Point-to-point and direct fabric/switch attach |
| Fibre Channel Class | Class 3 |
| Buffer Credits | 80 |
| Features | ADS™, NPIV, Virtual Fabric, FDMI, WMI, flash ROM |
| 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-321E 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.


