I found this one on the local market, seems like an external 3U SCSI case with 8x5.25”, and 2x300w redundant power supply. Supply case is ISS (Etasis) EPR-2302 with 2 x EPR-302
External Case for two 3.5 inch SCSI Drives - DM68 Connector - IEC
File:Sun Microsystems External SCSI Enclosures.jpg - Wikipedia