ZuluSCSI Blaster PCB

ZuluSCSI® is a SCSI computer storage emulation platform, which speaks both SCSI-1 and SCSI-2. It uses file-based SCSI HDD & CD-ROM images. New for 2025, ZuluSCSI Blaster is Powered by Raspberry Pi, and leverages the new RP2350B, which includes additional I/O capabilities, beyond what was possible with the previous generations of our products. Hard drive and CD-ROM drive images are stored on a standard FAT32 or exFAT-formatted SD card, and are exposed as block devices to the operating system.

Features of ZuluSCSI Blaster

  • Based on the 80-pin Raspberry Pi RP2350B microcontroller
  • Speaks both SCSI-1 and SCSI-2, including 20MB/sec Fast SCSI and narrow Ultra SCSI
  • Up to 18 megabytes/second read speeds, 10MB/sec write speeds (on ZuluSCSI Blaster-based models)
  • Support for ROM drives of up to 15.8 megabytes in size. That’s more than twelve 1.44MB floppy disks.
  • Emulates up to 7 SCSI devices simultaneously, including CD-ROM, Magneto Optical, removable (SyQuest/Jaz-style), and SCSI floppy device types
  • SCSI Termination is DIP-switch controlled
  • Firmware upgrade simplicity; As easy as placing a file on the SD card
  • Highly configurable using a text-based ini file, ZuluSCSI.ini
  • External activity LED pin header for attaching remote activity LED
  • Designed to be powered via SCSI termination power when provided by the host

Origins and License

Firmware origins

The open source ZuluSCSI™ firmware](https://github.com/zuluscsi/zuluscsi-firmware), licensed under the GPLv3 is derived from two sources, both under GPL 3 license:

Hardware

The ZuluSCSI™ Blaster, RP2040, V1.0 and V1.1 hardware designs are derived from the SCSI2SD V5.1 hardware design. The ZuluSCSI™ RP2040 Mini hardware designs are derived from the SCSI2SD V5.5 hardware design.