Abstract: A SCSI adapter for extending an internal SCSI bus of a computer system having a housing and internal memory storage devices is disclosed herein. The SCSI adapter enables connection of external memory storage devices to the internal SCSI bus. The SCSI adapter includes an adapter plate and a SCSI bus extension. The adapter plate attaches within the housing to the internal SCSI bus and to the SCSI bus extension. The SCSI bus extension extends from the adapter plate and attaches to the housing to enable connection of external memory storage devices with the internal SCSI bus.

Abstract: Disclosed herein is a power supply subsystem for use in a system such as a memory storage system. The power supply subsystem includes a housing, redundant load sharing power supplies and a power supply adapter. The power supply adapter includes a voltage offset circuit which enables automatic calibration of redundant power supplies. With redundant power supplies which require a master and a slave, the voltage offset circuit automatically calibrates one power supply to be the master.