
Product Features
Blazing Fast Performance
• 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.
Smooth Data Streaming
• 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
Dual-channel Ultra320
SCSI Host Adapter
With PCI-X Support
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 datatransfer 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
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 necessary for today’s data-intensive applications.
TM
) technology,
• Ultra 320 SCSI
• Up to 320 MB/sec. per
• Dual independent SCSI
• 64-bit/133 MHz PCI-X
compatibility
• Exclusive ADS
technology
• Supports up to 30 SCSI
• Up to 12 meter cable
• RoHS Com pl iant
• 3-year standard
product warranty
Technical Highlights
channel data-transfer
rates
channels (2 internal and
2 external connector
availability)
with backward
TM
bus IDs
lengths
Technical Specification
ExpressPCI UL4D
Host Adapter
For More Information:
www.ATTOTech.com
or to Purchase:
www.ATTOStore.com
(716) 691-1999

ExpressPCI UL4D
Host Adapter
Hardware Specifications
SCSI Interface
Advanced SCSI
Accelerated PCI Bus Management
General Characteristics
Software Specifications
Driver Support
Advanced Data Streaming (ADSTM)
RAID Options
Agency Approvals
Safety and Environmental
Environmental & Physical Specifications
Dimensions
Operating Environment
Reliability
Power
PCI Signal Compatibility
RoHS Compliant
Ordering Information
Model Number
• 320 MB/sec. per channel data-transfer rates
• Two (2) external VHDCI and two (2) internal high-density connectors per channel
• Low Voltage Differential (LVD) signaling
• Support for tagged command queuing
• Backward compatible with Ultra160, Ultra2, Ultra/WIDE, Fast/WIDE & Narrow SCSI devices
• Supports dynamic bus rescan (OS X) • Quick Arbitration Select (QAS)
• Double transition clocking • ASPI compliant (for PC users)
• Domain validation • Bootable from attached disks
• Cyclical Redundancy Checking (CRC) • Support for disconnect/reconnect
• Packetization • Support for multiple block sizes
• PCI-X bus master rate of 1 GB/sec.
• PCI-X 1.0a compliant
• PCI 2.2 and PCI 99 compliant
• 64-bit/133 MHz PCI-X (backward compatible with standard PCI)
• Automatic termination
• Upper-byte termination for Narrow devices
• Flash ROM for easy field upgrades
• Plug and play compatible
• Includes ATTO ExpressPro-Tools
• Windows
• Mac
• Linux (Fedora, Red Hat and SuSE)
• Novell Netware
®
Server 2003, 2008, XP, Vista
®
OS X (v10.4.x & v10.5.x)
®
v6.5
TM
& ATTO Configuration Tool formatting & utility software
• Improved PCI system bandwidth use
• Optimized SCSI-3 algorithms
• Tagged command queuing
• Embedded RISC I/O processor
• RAID 0 support with ATTO Express Power Center or ExpressStripe RAID software utilities
• FCC Rules, Part 15 Sub-Part B, Class A
• CE Mark: CISPR 22 / EN 55022, Class A
• Length 6.521”
• Height 4.450”
• Temperature: 0-45° C
• Humidity: 10-90% non-condensing
• Airflow: 100 LFM (min)
• MTBF = 150,000 hours
• MTTR < 15 Minutes
• 0.75 typical/2.0 max. Amps @ + 5.0 VDC
• 0.05 Amps @ + 12.0 VDC
• 3.3 Volts/5 Volts universal
• Yes
• EPCI-UL4D-0R0 (RoHS)
Technical Specification
ExpressPCI UL4D
©2008 ATTO Technology, Inc. Specifications subject to change without notice
Power Behind the Storage
For More Information:
www.ATTOTech.com
or to Purchase:
www.ATTOStore.com
(716) 691-1999
Rev 4/08