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Rabbit Hole Computing

ZuluSCSI Compact RP2040 Homebrew (kit)

ZuluSCSI Compact RP2040 Homebrew (kit)

Regular price $39.42 USD
Regular price Sale price $39.42 USD
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ZuluSCSI Compact Homebrew is our most affordable SCSI emulation solution, provided in a compact, easy-to-assemble kit form. All through hole components necessary to assemble a working unit are provided. Limited through-hole soldering is required to assemble this kit.

This ZuluSCSI Compact Homebrew is pre-flashed with firmware, and hand-tested. All surface-mount components are factory-assembled, and the SCSI interface on the board has been tested to ensure full functionality. The Molex-manufactured microSD socket is high-quality push-push type.

Features
  • USB-C - New as of revision 2025a+
  • 50-pin internal SCSI IDC connector 
  • Emulates up to 7 SCSI devices simultaneously, including CD-ROM
  • Speaks both SCSI-1 and SCSI-2
  • SCSI termination is enabled/disabled by a two-pin jumper header. The jumper is installed by default.
  • SCSI Initiator mode can be enabled by installing a two-pin jumper header on the appropriate jumper header, and closing the jumper at power-on.
  • Firmware upgrade simplicity; As easy as placing a file on the SD card
  • Highly configurable using a text-based ini file, zuluscsi.ini
  • External LED pin header for attaching remote LEDs
  • Designed to be powered via SCSI termination power when provided by the host
  • ZuluSCSI Compact RP2040 board dimensions are 90mm by 60mm
  • ZuluSCSI firmware is open source
ZuluSCSI Compact RP2040 is powered by the Raspberry Pi Foundation's dual-core RP2040 microcontroller. ZuluSCSI RP2040 supports SCSI-2, synchronous and asynchronous transfers, with read speeds up to ten megabytes per second. A SCSI controller supporting FAST SCSI and synchronous mode is required to achieve maximum speeds.
ZuluSCSI can emulate up to seven SCSI devices of varying device types (HDD, CD-ROM, Zip, Tape) at the same time. ZuluSCSI is easy to use. Hard drive and CD-ROM drive images are stored on a standard FAT32 or exFAT-formatted solid-state SD card. The ZuluSCSI firmware looks for file names which adhere to a simple but powerful naming convention. It presents each file as block devices/drives to the SCSI host. Each image file represents a SCSI drive. 
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