ATTO ExpressPCI UL4S

The ATTO ExpressPCI UL4S offers the latest in SCSI storage connectivity, delivering the ultimate data-delivery performance of up to 320 MB/sec. The UL4S which features the new PCI-X bus interface and incorporates improved SCSI standards, is ideal for delivering data to the most demanding Enterprise server and high-end workstation environments. Enabled with ATTO's exclusive Vpath^TM Technology, the UL4S offers users the flexibility of connecting high-speed Ultra320 devices externally and slower legacy devices internally, or vice versa, without sacrificing the performance of the high-speed device. This allows users to take full advantage of Ultra320 and legacy speeds simultaneously. 

Benefits

• Ultra320 SCSI performance enables high throughput for servers and high-end workstations
  • One external and one internal channel allow users to attach Ultra320 drives externally and slower legacy devices internally for aggregate throughput of up to 320 MB/sec.
  • Supports up to 30 SCSI bus IDs - 15 each on external and internal channels
  • Supports Low Voltage Differential (LVD) for cabling up to 12.5 meters per bus
  • Compatible with Single-ended SCSI devices, providing cable distances up to 3 meters
  • Supports all five original requirements of Ultra3 SCSI:
    • Double Transition Clocking
    • Domain Validation
    • Quick Arbitration Select
    • Packetization
    • Cyclical Redundancy Checks
  • Additionally, the UL4S supports Ultra320-specific features such as Free-Running Clock, Read/Write Data Streaming, Flow Control, Training Patterns, Pre-compensation, and Asynchronous Information Protection (AIP)
• Features Advanced Data Streaming (ADS™) Technology for controlled acceleration of data transfers
  • Embedded RISC processor for low-overhead operation
  • Bus Mastering capabilities eliminate CPU processing time as a bottleneck
  • Tagged Command Queuing allows multiple commands to be processed in any order
  • Disconnect/Reconnect eliminates wait time between transfers
• Backward compatible with PCI-based systems, preserving investment in legacy systems
  • 133 MHz PCI-X provides up to 1 GB/second data transfers, allowing full Ultra320 performance
  • Fully backward compatible with 66 MHz and 33 MHz PCI specifications
  • Fully compatible with 64-bit and 32-bit PCI busses
  • Supports PCI hot swap specifications for high-end servers
• Robust Driver Support

•  
  • Windows^® Server 2003, XP/2000/NT
  • Mac^® OS X
  • Linux

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