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Description
ATTO Technology ExpressSAS R644 4 Port-External/4-Port Internal 6 Gbps SAS/SATA RAID AdapterLong Standing RAID Experience Flexible Connectivity Solutions Transfer Rates of Up to 1200 MBps Port Performance Engineered Advanced Management Tools Advanced Data Streaming DriveAssure Technology CacheAssure Technology Data Recovery Mode x8 PCIe 2. 0 Bus Characteristics The ExpressSAS R644 4 Port External 4 Port Internal 6 Gbps SAS SATA RAID Adapter from ATTO Technology offers the fastest available connectivity to SAS or SATA storage with integrated
- Long-Standing RAID Experience
- Flexible Connectivity Solutions
- Transfer Rates of Up to 1200 MBps/Port
- Performance Engineered
- Advanced Management Tools
- Advanced Data Streaming
- DriveAssure Technology
- CacheAssure Technology
- Data Recovery Mode
- x8 PCIe 2.0 Bus Characteristics
The ExpressSAS R644 4 Port-External/4-Port Internal 6 Gbps SAS/SATA RAID Adapter from ATTO Technology offers the fastest available connectivity to SAS or SATA storage with integrated RAID protection. The adapter provides 6 Gbps SAS/SATA connectivity to Direct Attached Storage via 4 external/4 internal ports. With transfer rates of up to 1200MBps per port, the 6Gbps SAS/SATA RAID Adapter is well suited for high-bandwidth workflows, such as digital content creation, streaming video and audio, transactional databases and email and Web servers.
The 6 Gbps SAS/SATA RAID Adapter 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, this adapter helps customers create, share and protect data and digital assets more effectively.
- Long-Standing RAID Experience
- The ExpressSAS 6 Gbps SAS/SATA RAID adapter features the time-proven ATTO RAID Stack, DVRAID and CacheAssure, proprietary technologies developed to provide the most robust RAID based connectivity solution in the industry.
- Flexible Connectivity Solutions
- The ExpressSAS 6 Gbps SAS/SATA RAID adapter is ideal for a wide variety of IT and digital media environments that require high-performance and parity RAID protected data. This adapter offers driver support for Windows, Linux and Mac OS X that provides a single connectivity solution for customers with heterogeneous operating system environments.
- Performance Engineered
- The ExpressSAS 6 Gbps SAS/SATA RAID adapter allows you to instantly protect their critical data while enhancing performance. It is designed to maintain full performance in degraded mode and to minimize downtime with 50% faster rebuilds, limiting exposure to a second drive failure. Its latency management features like Advanced Data Streaming (ADS) Technology and DriveAssure minimize data transfer interruptions to ensure the highest level of consistent performance.
- Advanced Management Tools
- The Configuration Tool features an intuitive GUI that simplifies RAID group configuration, management and monitoring. The ExpressSAS 6 Gbps SAS/SATA RAID adapter offers the most advanced performance tuning capabilities and troubleshooting utilities, providing users with sophisticated diagnostics and the flexibility to control settings for specific applications.
- Applications
- The ExpressSAS RAID adapter adds high-performance RAID data protection to direct-attached SAS and SATA JBOD storage. It is an ideal connectivity solution for high-performance media and entertainment and general IT environments. The adapter delivers affordable host-level RAID for high-bandwidth workflows such as digital content creation, streaming video, transactional databases and email and Web servers.
- Advanced Data Streaming (ADS)
- The Latency-management technology that controls the acceleration of data transfers to move large amounts of data faster and more efficiently.
- DriveAssure Technology
- Drive assessment and latency management technology that minimizes the likelihood of RAID groups becoming degraded or taken offline due to slow drives, ensuring uninterrupted access to data.
- CacheAssure Technology
- The ExpressSAS 6 Gbps SAS/SATA RAID adapter's flash-based protection module provides a maintenance-free solution that safeguard against the loss of cached data during a power or system failure.
- Data Recovery Mode
- The adapter features mechanism that increases the probability of fully or partially recovering data that is lost due to a disk failure and offline RAID group.
- User Benefits
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- High performance host-based RAID for direct attached storage
- Four port configurations for flexible connectivity
- Full performance in degraded or rebuild mode
- Flash-based cache protection protects against lost data during power or system failure
- More options for retrieving data from a failed drive with Data Recovery mode
- 50% faster rebuilds
- Efficient scalability with host-level RAID
- Maintain high priority workflows with tunable rebuilds
- RAID group partitioning for better management
UPC: 603175007272
In the Box
ATTO Technology ExpressSAS R644 4 Port-External/4-Port Internal 6 Gbps SAS/SATA RAID Adapter
- Full-Height Bracket
- 3 Year Warranty
| Ports | 4 external/4 internal |
| Bus Interface | x8 PCIe 2.0 |
| Form Factor | Low profile |
| Connectors | 1 Mini SAS (x4) SFF 8088 external, 1 Mini SAS (x4) SFF 8087 internal |
| Management Tools |
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| External Connectivity | x4 Mini SAS connectors |
| RAID Features and Functionality |
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| Operating System Support |
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| Agency Approval |
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| Compliance |
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| Hardware |
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| Storage |
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| Operating Voltage | 9.6 W (typical) |
| Airflow | 150 lf/m minimum recommended |
| Dimensions (L x H) | 6.600 x 2.713" (16.764 x 6.891 cm) |
| Weight | Not specified by the manufacturer |
| Packaging Info | |
|---|---|
| Package Weight | 1.0 lb |
| Box Dimensions (LxWxH) | 9.8 x 7.2 x 2.1" |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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Product Reviews
★★★★★ 5
Me encantó
Color: #14R - Pack of 21 (20 Blades + 1 Handle)
Excelente
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Reviewed in the United States on March 13, 2026
★★★★★ 1
Blades are not sharp and will not remove peach fuzz, even after two swipes
Color: #10 - Pack of 21 (20 Blades + 1 Handle)
I was really disappointed in this. It did not remove all of the peach fuzz completely and I dermaplaned twice back to back. Which tells me the blades aren’t as sharp as they’re made out to be. The blade handle was sturdy and seemed to be made of good quality. But the blades themselves are horrible at cutting and aren’t razor sharp. I personally wouldn’t purchase this if I were you. I’ll keep the blade handle, but I will definitely be purchasing different blades.
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Reviewed in the United States on February 14, 2026
★★★★★ 5
Good quality!
Color: #14R - Pack of 21 (20 Blades + 1 Handle)
If you are looking to dermaplane at home obviously be careful but if you are looking into getting scalpels, these are good quality and come in a big pack where it will last you a while! Remember dermaplaning is once every four weeks and make sure you have no active breakouts!
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Reviewed in the United States on November 14, 2025
★★★★★ 3
Not the sharpest blades
Not fantastic but they work
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Reviewed in the United States on April 15, 2026
★★★★★ 5
The BEST relationship book you will ever read! Single, Dating, or Married this book will transform your relationships forever!
Format: Paperback
This book is incredible! Debra's insights as a counselor are unlike anything I have ever read and will change my relationships forever. The survey results from 1000 singles/1000 couples were really eye opening, but more importantly she presented solutions and offered hope in many areas: dealing with unmet expectations, how to be authentic, how to protect your marriage, dealing with conflict, issues with sex, how to truly become "one", and many more.
Many relationship books are about a couples' journey or their advice that worked for them, Debra is unique in that your are getting perspective from a licensed counselor and relationship expert who has worked with countless clients! Her wisdom shines through and her approach to a number of subjects are so unique, refreshing, and inspiring. She does a masterful job of approaching relationships with her clinical wisdom, but rooted in her deep love for Jesus. I wish someone would have told or taught me countless things in this book years ago.
I loved reading her stories of couples and singles she worked with, many real-life examples made the book very connectable and authentic. My favorite chapters were Alter that Ego, From Pride to Humility (where you actually learn what a proper apology should look like in a relationship and the power of humility in a relationship); Sex Marks the Spot, From Infatuation to Adoration (amazing chapter about navigating sex and dealing with problem spots); and Walls Will Fall, From Vulnerability to Intimacy (
If you are single, READ this book to get a front row seat into what marriage will look like and more importantly the qualities you should be looking for in your future spouse!
if you are dating/engaged READ this book to learn more about your relationship, future areas and topics you need to discuss and more importantly how to handle them.
if you are married (whether for a year or 50 yrs) READ this book to transform your marriage, Debra will equip you with the tools to deal with issues you may be struggling with and even more how to identity them.
I walked away from this book so encouraged and filled with hope as I got a glimpse of what God's best in relationship should look like.
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Reviewed in the United States on May 1, 2018