ExpressSAS® H644

Low-Profile 4-Internal/4-External Port 6Gb/s SAS/SATA
PCIe 2.0 Host Bus Adapter

Model No. ESAS-H644-000

The ExpressSAS® H644 provides high-speed 6Gb/s performance at 600MB/s per port. By utilizing a serial, point-to-point architecture, in addition to PCI Express 2.0 bus technology, ExpressSAS® 6Gb/s HBAs are engineered for demanding IT and digital media applications. The ExpressSAS® H644 features four internal ports, four external ports and allows connections to 1024 end-point devices.

ExpressSAS® 6Gb/s Host Bus Adapters (HBAs) deliver the fastest available connection to SAS or SATA tape or disk storage. With a full range of port configurations and driver support, easy-to-use features, extensive industry qualifications and support for up to 2,048 end devices, ATTO has a 6Gb/s SAS HBA design to meet your performance needs.

Included with all ATTO HBAs is an easy-to-use utility ConfigTool™ enabling management, monitoring and configuration which leverages an intuitive GUI.

ATTO's exclusive, field-proven Advanced Data Streaming (ADS™) Technology helps users meet the most demanding performance requirements of bandwidth-intensive applications. ADS achieves this performance increase by integrating a combination of features engineered to allow for the controlled acceleration of data transfers.

  • 4 internal / 4 external ports in a low-profile form factor
  • x8 PCIe 2.0 host connection
  • 9.6GB/s throughput in full duplex-mode
  • SAS, SATA, SATA II connectivity
  • Support for up to 1024 end devices
  • Driver support for Windows®, Linux, macOS®, VMware®
  • 3-year standard product warranty
  • RoHS Compliant
  • Advanced Data Streaming (ADS™) Technology provides controlled acceleration for smooth high performance data streaming
  • WriteStop™ available for specialized data security applications for OEMs
  • Advanced management through ConfigTool™ utilities
  • 4800 MB/S transfer rate

  • RoHS Compliant
  • 3 Year Product Warranty
  • 6Gb SAS


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