ATTO Technology UL4D Dépliant

Technical Specification 

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The UL4D dual-channel Ultra320 host adapter is 
the perfect complement to ATTO’s ExpressPCI 
family of high-performance SCSI host adapters for 
data-intensive environments. Boasting data-
transfer rates of up to 640 MB/sec. and offering 
support for advanced PCI-X busses, the UL4D is 
an ideal fit for Enterprise servers and high-end 
workstations running high-volume, mission-critical 
applications such as messaging and databases.  
 
ATTO host adapters offer ATTO’s exclusive 

 

 

 

 

 

 

Advanced Data Streaming (ADS

TM

) technology, 

and the ExpressPCI UL4D is no exception. By   
effectively managing latency and allowing for fast 
and efficient data movement, utilization of the CPU 
is reduced, freeing it up to perform other mission 
critical tasks. 
 
Installation of the ExpressPCI UL4D host adapter is 
a fast and easy. Thanks to ATTO’s factory-preset 
configurations, the UL4D is ready out-of-the-box for 
plug 

and 

play 

operation. 

The 

included               

Configuration Utility, featuring an easy-to-use GUI, 
simplifies the effort associated with installation, 
management and monitoring of the host adapter. 
 
The ExpressPCI UL4D is the first choice for users 
working in environments with demanding server 
and professional workstation environments. By 

 

offering support for Ultra320 SCSI and PCI-X, in 
addition to ATTO-designed performance-enhancing 
technologies including ADS, the ExpressPCI UL4D 
offers both the performance and feature set neces-
sary for today’s data-intensive applications. 

 
•  Ultra320 SCSI 
 
•  Up to 320 MB/sec. per 

 
•  Dual independent SCSI 

 
•  64-bit/133 MHz PCI-X 

   compatibility 
 
•  Exclusive ADS

TM

 technology 
 
•  Supports up to 30 SCSI 

 
•  Up to 12 meter cable 

 
•  RoHS Compliant 
 
•  3-year standard 
 product 

warranty 

• Maximize data throughput 

with dual channel connectivity 
aggregating performance 
across multiple SCSI ports 

• Leveraging the latest in SCSI 

storage connectivity, the 
UL4D delivers up to 640 MB/
sec. data throughput, making 
it twice as fast as Ultra160 
SCSI. 

 

• Maintain accessibility to    

mission-critical data by    
transparently redirecting data 
requests through alternate 
channels. 

• Alleviate data transfer       

bottlenecks and move data 
more efficiently while       
managing latency with 
ATTO’s exclusive ADS™ 
technology. 

 
One Click Installation 

• Save time with factory preset 

configuration for plug and play 
operation. 

• Simplify installation,         

management and monitoring 
with multi-platform            
Configuration Utility featuring 
an intuitive GUI. 

 

ExpressPCI UL4D