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Celerity FC-42ES
Dual-channel 4-Gigabit Fibre Channel Host Adapter

Used | OWC Tested

The fastest storage technology just got better! The Celerity FC-42ES leverages two next-generation storage technologies - PCI Express interconnect and 4-Gigabit Fibre Channel.
With 4-Gb FC speeds of up to 800 MB/second per channel, the FC-42ES supports the most demanding application requirements, including high-definition video, rich content databases and other high-bandwidth environments.
The FC-42ES takes advantage of the latest in host interconnect technology – PCI Express – a serial, high-speed connection that supports aggregate throughput up to 1 GB/second (x4 PCIe). Software compatible with existing PCI and PCI-X products, the FC-42ES uses the same device drivers as the other Celerity FC family products, simplifying user installation and support.
ATTO Celerity host adapters are an integrated family of advanced storage connectivity solutions that are designed to provide reliable connectivity, intelligence and scalability. Meeting tomorrow’s connectivity needs today, Celerity FC host adapters extend the capabilities of software and hardware, increase overall system performance and drive intelligence all the way to the edge of the SAN. Celerity, a platform for advanced storage connectivity.

Product Specifications:

Atto Part Number

  • FC-42ES


  • Mac OS 10.4 Tiger and above
  • Windows XP and above
  • Red Hat Linux (2.4 and 2.6 kernel), SUSE Linux (2.6 kernel), VMware ESX Server 3.5, Novell Netware 6.5, Solaris 9 & 10, Free BSD

Card Interface

  • PCIe

Number of Lanes

  • x4

PCIe Version

  • PCI Express 1.0a


  • Dual independent FC ports

Hot Swappable

  • No

Hot Pluggable

  • No


  • Height: 6.9 cm (2.7 in)
  • Length: 14.2cm (5.6 in)


  • ROHS
  • CE
  • FCC


  • Easy-to-install full height connection bracket; low-profile bracket included in Finished Goods packaging


  • Environmental (Operating)
    • Temperature (°F) 32° — 113°
    • Temperature (°C) 0° — 45°
  • Environmental (Non-Operating)
    • Temperature (°F) −40° — 158°
    • Temperature (°C) −40° — 70°
  • Altitude (Operating)
    • -304.8 m to 3,048.0 m
    • -1,000 ft to 10,000 ft
  • Altitude (Non-Operating)
    • -304.8 m to 12,192.0 m
    • -1,000 ft to 40,000 ft
  • Humidity (Operating)
    • 5% to 95% non-condensing
  • Humidity (Non-Operating)
    • 5% to 95% non-condensing
Manufacturer provided specifications for ATTO p/n FC-42ES


  • (1) Celerity FC-42ES Fibre Channel Host Adapter
Atto Celerity FC-42ES Dual-channel 4-Gigabit Fibre Channel Host Adapter Mfr P/N: FC-42ES OWC SKU: ATTCTFC42ESU Featuring ADS Technology. 800MB/s throughput per channel in full-duplex mode, high performing SAN storage connectivity for media, entertainment, and general IT workflows ATTO 90 Day Limited Warranty
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