8-Port Internal 6Gb SAS/SATA to x8 PCIe 2.0 RAID Adapter, Low Profile,

by ATTO Technology Inc MFG# ESAS-R608-C00

ExpressSAS® R608

8 Port Internal 6Gb/s SAS/SATA RAID Adapter

Model No. ESAS-R608-000 ESAS-R608-C00

ATTO ExpressSAS® R608 6Gb/s SAS/SATA RAID Adapters add high-performance RAID protection to internally-connected direct attached SAS and SATA storage. Delivering significant advancements in performance and flexibility with enterprise-class features, ExpressSAS® 6Gb/s SAS/SATA RAID adapters provide the industry's largest ECC protected cache memory in an affordable RAID solution for general IT and media and entertainment environments.

Optional CacheAssure module provides users with data protection against power loss while maintaining high performance.



he ExpressSAS® R608 RAID adapter provides 6Gb/s SAS/SATA connectivity to Direct Attached Storage via 8 internal ports. With transfer rates of up to 1200MB/s per port, the R608 is well suited for high-bandwidth workflows, such as digital content creation, streaming video and audio, transactional databases, and email and Web servers.

The R608 combines advanced engineering and innovative features to ensure smooth data transfers and consistent performance. Leveraging ATTO's market-tested RAID stack and exclusive latency management features, the R608 helps customers create, share and protect data and digital assets more effectively.


  • 8 internal ports in a low-profile form factor
  • 1GB ECC protected cache memory
  • 8x PCIe 2.0 / PCIe 3.0 compatible host connection
  • 9.6GB/s throughput in full-duplex mode
  • SAS 2.0, SAS, SATA II, SATA connectivity
  • Supports RAID Levels 0, 1, 4, 5, 6, 10 50, 60 and DVRAID™, an advanced RAID level for digital video environments
  • Advanced Data Streaming (ADS™) Technology
  • DriveAssure™ Technology
  • CacheAssure™ Technology
  • Adaptive Path Optimization available to provide redundancy in storage connections
  • Data Recovery Mode for additional data protection
  • Supports up to 256 end devices
  • Windows®, Linux and macOS® driver support
  • Easy-to-use GUI-based configuration utility
  • Thunderbolt-aware driver
  • 3-year standard product warranty


Advanced Data Streaming (ADS™) Technology — Latency-management technology that controls the acceleration of data transfers to move large amounts of data faster and more efficiently.

View ADS™ Technology Brief

DriveAssure™ Technology — Drive assessment and latency management technology that prevents premature drive failures to ensure uninterrupted access to data.

View DriveAssure™ Technology Brief

CacheAssure™ Technology — NV cache data protection module providing a maintenance-free solution that safeguards against the loss of cached data during a power or system failure.

View CacheAssure™ Technology Brief

Data Recovery Mode — Mechanism that increases the probability of fully or partially recovering data that is lost due to a disk failure and offline RAID group.



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