ZuluSCSI™ V6.4 is a SCSI computer storage emulation platform which is a descendent of SCSI2SD V6. Unlike ZuluSCSI V1 and ZuluSCSI RP2040, ZuluSCSI V6.4 uses a client-side configuration utility, ZuluSCI-V6-util, to configure SCSI devices, identical to that of SCSI2SD V6.


  • Open-source firmware, licensed under the GPLv3
  • Emulates up to 7 SCSI devices simultaneously, including CD-ROM, Magneto Optical, removable (SyQuest/Jaz-style), and SCSI floppy device types
  • Speaks both SCSI-1 and SCSI-2, including 10MB/sec Fast SCSI
  • Up to 9.5 megabytes/second read AND write speeds
  • SCSI Termination is software-controlled, via ZuluSCSI-V6-util.exe
  • Firmware upgrade simplicity; As easy as copying a .uf2 file to the ZuluSCSI via USB.
  • External activity LED pin header for attaching remote activity LED
  • Designed to be powered via SCSI termination power, when provided by the host
  • Identical dimensions and mounting holes as that of SCSI2SD V6, V5.2, ZuluSCSI V1.1, and ZuluSCSI RP2040 Full Size

Origins and License

Firmware origins

The ZuluSCSI™ V6.4 firmware is derived from the original SCSI2SD V6 firmware.