ZuluSCSI Blaster - New for 2025
Two and a half years ago, Rabbit Hole Computing developed and brought to market the first RP2040-based SCSI emulator, which represented our second-generation ZuluSCSI. Since then, we've been hard at work, implementing support for the new Raspberry Pi Pico 2 and Pico 2 Wireless, which was accomplished late in 2024. This laid the groundwork for supporting the RP2350A's big brother, the RP2350B, which adds another 18 GPIOs over the 60-pin RP2350A. This additional hardware capability allows the ZuluSCSI Blaster to function more efficiently while also allowing us to introduce features that have been absent from previous SCSI hardware emulation devices.
New for 2025, ZuluSCSI Blaster is an advanced SCSI storage emulator and is powered by the Raspberry Pi Foundation's larger and more-versatile RP2350B microcontroller.
ZuluSCSI Blaster features
- Support for narrow Ultra SCSI (20MB/sec) timing, as well as SCSI-1 and SCSI-2
- Up to 18 megabytes/second read speeds, 11MB/sec write speeds
- USB-C connector
- SCSI Initiator mode support for both reading from and writing to Hard Drives and CD-ROM drives via USB
- 16-bit stereo CD Audio playback emulation (requires optional $5 plug-in DAC board)
- DaynaPORT SCSI Ethernet Wi-Fi emulation via add-on radio module
- Support for ROM drives of up to 15.8 MB in size, more than 12 1.44MB floppy disks!
- Expansion header for with six GPIOs for future add-on functionality.
- 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
- Emulates up to 7 SCSI devices simultaneously, including CD-ROM, Magneto Optical, removable (SyQuest/Jaz-style), and SCSI floppy device types
ZuluSCSI Blaster supports synchronous and asynchronous SCSI transfers, with synchronous read throughput of up to 18 megabytes/second. A sufficiently fast SD card and SCSI controller with Ultra SCSI support is required to achieve maximum throughput.
As always, ZuluSCSI firmware is open-source, and GPLv3-licensed.
ZuluSCSI Blaster can be purchased from:
