Power Mac G4 (Gigabit Ethernet): SCSI Card Specifications

This article contains the technical specifications for the Power Mac G4 (Gigabit Ethernet) SCSI card, which is based on the ATTO UL3D card.

For information on the Power Macintosh G3 (Blue and White), Power Mac G4 (AGP Graphics) and Power Mac G4 (Gigabit) please see article 58204: Power Macintosh G3 (Blue and White), Power Mac G4: SCSI FAQ .

General

• Automatic Termination
• RAID-Ready
• UL3D Connectors:
  • UL3D: External - one 68-pin Wide
  • Internal - one 68-pin Wide
• PCI 2.2 Compliant
• Supports full PCI power management
• Cable length - 12m (when using ultra2 or ultra160 drives)

Maximum SCSI Transfer Rates:

• Synchronous Data Rate:
  • UL3D - Up to 160 Mbytes/sec. per channel (Ultra160 mode) as delivered from Apple
• Asynchronous Data Rate
  • 12 Mbytes/sec. Per Channel

SCSI Interface

• SCSI-1, SCSI-2, SCSI-3, UltraSCSI, Ultra2 SCSI, Ultra 160 SCSI
• Electrical Signals - Low Voltage Differential or Single-Ended for legacy devices
• Extensive Device Support - UL3D: Up to 210 through LUNS (Wide and Narrow Devices)

Advanced SCSI

• Large Command FIFO
• Supports Disconnect/Reconnect
• Asynchronous I/O Support
• Multiple Initiator Support
• SCSI-3 Tagged Command Queuing
• SCSI Manager 4.3 Compatible
• Original SCSI Manager Compatible