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ExpressSAS R348
Low-Profile SAS RAID Adapter
RAID Adapter
4 External and 4 Internal Ports
or 8 Internal Ports, Configurable
ATTO introduces the ExpressSAS R348 Low-
Profile RAID Adapter. Providing 3-Gb SAS/SATA II
connectivity with integrated RAID support and
flexible port configurations, the ATTO SAS RAID
adapter is ideal for both IT and digital video
environments that require a high level of data
protection and performance.
The ATTO ExpressSAS host adapter product
family provides enhanced reliability and
performance thanks to more than 15 years of
experience with SCSI hardware and storage
connectivity solutions. Using PCI Express bus tech-
nology and the flexibility of either a 4 external and 4
internal or an 8 internal user selectable port con-
figuration, the ATTO ExpressSAS R348 adapter
delivers blazing-fast performance with transfer
rates of up to 3-Gb per second per port. With two
x4 Mini SAS connectors, configured internally or
combined internal and external, the R348 provides
connectivity of up to 128 SAS/SATA targets. The
R348 also features 256MB of ECC-protected
DDR2 DRAM to allow support for multiple RAID
groups.
The ATTO ExpressSAS RAID adapters are
engineered for the most stringent IT server and
digital media workgroup environments. To satisfy
the data protection requirements of these
environments, ATTO leverages it’s time tested
ATTO RAID Stack (ARS™) technology based on a
proven RAID core that is compatible with multiple
operating systems, applications, and drives.
The easy-to-use GUI utility enables RAID
management, monitoring, and configuration. ATTO
also incorporates it’s field proven Advanced Data
Streaming (ADS™) technology to meet the most
demanding performance requirements of data
intensive applications. In addition, ATTO provides
industry standard PCIe to SAS control using Serial
SCSI Protocol (SSP), Serial ATA Tunneling
Protocol (STP), and Serial Management Protocol
(SMP).
Technical Highlights
• x8 PCIe host interface
• True low-profile form
factor
• User Selectable: 4
external and 4 internal
ports or 8 internal ports
• Outstanding performance
with up to 3-Gb/sec per
port
• Highly configurable
RAID (0, 1, 4, 5, 6, 10, 50,
60, JBOD and DVRAID
support)
• SAS, SATA and SATA II
connectivity
• Supports up to 128
virtual SAS/SATA drives
• Exclusive Advanced Data
Streaming (ADS
TM
)
technology
• User friendly GUI
configuration utility
• Driver support for
Windows
®,
Linux and
Mac
®
OS X
• RoHS Compliant
• 3-year standard
product warranty
Blazing Fast Performance
• Up to 3-Gb/sec per port
transfer rates with SAS, SATA
and SATA II attachment
• Increased bandwidth through
x8 PCI Express host interface
• Point-to-point technology
delivers full throughput to
each connected storage
device
Smooth Data Streaming
• Alleviate data transfer
bottlenecks and move data
more efficiently while
managing latency with
ATTO’s exclusive ADS™
technology
• Improve I/O through
optimized data movement
One Click Installation
• One-click installation allows
for quick and easy set-up
• Simple GUI based utility for
effortless adapter
configuration
• BIOS setup utility provides
flexibility for custom
applications
ExpressSAS R348 RAID Adapter