ATTO ExpressSAS H1244GT - 12Gb SAS HBA - 4 Ext/4 Int Ports

SKU: ESAH-1244-GT0

4-Port External 4-Port Internal 12Gb/s SAS/SATA to PCIe 4.0 Host Bus Adapter


  • ATTO ExpressSAS GT HBAs are built to handle the scalability and availability needs for the next generation of data processing.
  • The ExpressSAS GT line's PCIe 4.0 capabilities increase user bandwidth resulting in reduced downtime, improved efficiency and money saved on the bottom line.
  • With unique ATTO features and extensively tested hardware users can expect a product that is performance engineered with data protection and management at no extra cost.
  • Provide the ability to develop unique, quick to market solutions with enterprise OS support.


  • 4 external/4 internal ports in a low-profile form factor.
  • x8 PCIe 4.0 host connection (Backwards compatible with PCIe 3.0).
  • Backward-compatible with 6Gb/s and 3Gb/s SAS targets and 6Gb/s and 3Gb/s and SATA targets.
  • Driver support for Windows, Linux, VMware,FreeBSD, illumos and macOS
  • 3-year standard product warranty.
  • RoHS Compliant.
  • Advanced Data Streaming (ADS) Technology provides controlled acceleration for smooth high performance data streaming.
  • NUMA support for high performance multiprocessor applications.
  • WriteStop available for specialized data security applications for OEMs.
  • Advanced management through ConfigTool and vConfigTool utilities.
  • Support for SAS tape devices and transport layer retries (TLR) for error handling.
  • Target mode driver development kit available for storage servers, storage systems and appliances.
  • All finished good H1244 GT SKUs include: ATTO ExpressSAS GT SAS/SATA adapter, low profile bracket, ATTO corporate brochure, getting started guide.

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