Sun 270-2015-03 Rev 50 SCSI Controller Card SBus Ethernet Workstation

Sun 270-2015-03 Rev 50 SCSI Controller Card SBus Ethernet Workstation

The Sun Microsystems 270-2015-03 is an SBus SCSI controller card designed for Sun SPARCstation and Sun Ultra series workstations and servers. This Rev 50 board combines a SCSI host adapter with an onboard Ethernet interface, providing both peripheral storage connectivity and network access through a single SBus slot — a common integrated design in Sun's SBus-generation workstation lineup.

Specifications & What's Included

• Manufacturer: Sun Microsystems
• Part Number: 270-2015-03
• Board Revision: Rev 50 (printed on PCB edge)
• Bus Interface: SBus
• Primary Interface: SCSI (HD68 connector on bracket)
• Secondary Interface: Ethernet (RJ-45 connector on bracket)
• Main Controller: LSI SCSI controller IC (visible on PCB)
• Additional ICs: Large FPGA/ASIC, supporting logic, crystal oscillator
• Form Factor: Full-length SBus card/module
• Includes: Card only (no cables or accessories)

Applications

SBus was Sun Microsystems' proprietary high-speed expansion bus used throughout the late 1980s and 1990s in their SPARCstation and Sun Ultra workstation lines, including the SPARCstation 1, 2, 5, 10, 20, and the Sun Ultra 1 and Ultra 2. The 270-2015-03 was used to connect SCSI storage devices — hard drives, tape drives, CD-ROM drives, and external enclosures — to Sun workstations and servers running SunOS and Solaris. Its onboard Ethernet port made it a versatile combo card, reducing the need for a separate network card in a slot-limited chassis. These cards are sought today by administrators and collectors maintaining legacy Sun SPARC systems, Solaris workstations, or vintage UNIX computing environments. SBus was eventually succeeded by PCI in Sun's later product generations.