SCSI2SD: Difference between revisions

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<p><strong>The SCSI Hard Drive Emulator for retro computing.</strong></p>
<p><strong>The SCSI Hard Drive Emulator for retro computing.</strong></p>


[http://www.codesrc.com/images/SCSI2SD/SCSI2SD_V3.0.jpg http://www.codesrc.com/images/SCSI2SD/SCSI2SD_V3.0_small.jpg]
[http://www.codesrc.com/images/SCSI2SD/scsi2sd-5.1-6.0.jpg http://www.codesrc.com/images/SCSI2SD/scsi2sd-5.1-6.0-small.jpg]
[http://www.codesrc.com/images/SCSI2SD/SCSI2SD_V3.0_plain.jpg http://www.codesrc.com/images/SCSI2SD/SCSI2SD_V3.0_plain_small.jpg]
 
 
== Download ==
# [http://www.codesrc.com/files/scsi2sd-v6/latest Downloads] for v6 hardware revisions. This firmware will NOT work on the older boards.
# See [[#Files]] section below for older boards


== News ==
== News ==
<p>
<p>
<strong>[21 July 2014]</strong> [http://www.codesrc.com/files/scsi2sd/v3.5.2/ v3.5.2] firware released
<strong>[14 May 2022]</strong>[http://www.codesrc.com/files/scsi2sd-v6/v6.4.14 v6.4.14] Bugfix release<br>
<ul>
<ul>
<li>Fix blank SCSI ID output in scsi2sd-config</li>
  <li>Fix firmware version displaying as "0.0" in scsi2sd-util when there is no SD card inserted.</li>
  <li>Reduce some delays for slight performance improvements.</li>
  <li>Use SD High-Speed mode on V6 2021 hardware.</li>
</ul>
</ul>
</p>
</p>
<p>
<p>
<strong>[17 July 2014]</strong> [http://www.codesrc.com/files/scsi2sd/v3.5.1/ v3.5.1] firmware released
<strong>[21 Jan 2022]</strong>[http://www.codesrc.com/files/scsi2sd-v6/v6.4.13 v6.4.13] Bugfix release<br>
<ul>
<ul>
<li>Allow building utilities on older Linux distros</li>
  <li>Fix SCSI writes with sector sizes larger than 512.</li>
<li>Resolve missing DLL issues for the Windows utilities</li>
  <li>Fix 2Gb SD cards being detected as 1Gb.</li>
<li>Fix scsi2sd-config crash on Mac.</li>
  <li>Fix for CD emulation stopping the drive when receiving a load/eject request</li>
</ul>
</ul>
</p>
</p>
<p>
<p>
<strong>[14 July 2014]</strong>
<strong>[11 Aug 2021]</strong>[http://www.codesrc.com/files/scsi2sd-v6/v6.4.12 v6.4.12] Bugfix release<br>
[http://www.codesrc.com/files/scsi2sd/v3.5/ v3.5] firmware released.
<ul>
<ul>
<li>DMA support for significant performance improvements.</li>
<li>Fix USB disconnect issues.</li>
<li>Support for the new SCSI2SD hardware revision 4.2</li>
</ul>
</ul>
</p>
</p>


<p>
<p>
<strong>[18 May 2014]</strong>
<strong>[31 May 2021]</strong>[http://www.codesrc.com/files/scsi2sd-v6/v6.4.11 v6.4.11] Hardware Support release<br>
[http://www.codesrc.com/files/scsi2sd/v3.4/ v3.4] firmware released.
<ul>
<ul>
<li>Bug fix for non-512 byte sectors.</li>
<li>Bugfixes for previous 6.4.x versions</li>
<li>New scsi2sd-debug log capture utility</li>
<li>Updates to support the new 2021 revision of the SCSI2SD V6 boards</li>
<li>Increased max sector size to 8192 bytes</li>
<li>scsi2sd-util6 stability improvements (contributed by Jonathan Wakely).
<li>Windows users upgrading from previous releases MUST delete old USB device information before scsi2sd-config will work again. The [http://nirsoft.net/utils/usb_devices_view.html USBDeview] utility may be used to remove Vendor 04B4, Product 1337.</li>
</ul>
</ul>
</p>
</p>
<p>
 
<strong>[16 April 2014]</strong>
[[SCSI2SD Archived News]]
[http://www.codesrc.com/files/scsi2sd/v3.3/ v3.3] firmware released.
<ul>
<li>Many critical bugs are fixed. All SCSI2SD users are urged to upgrade to this version.</li>
<li>Better compatibility with older SCSI-1 controllers.</li>
<li>Non-standard sector sizes between 64 and 2048 bytes are now supported.</li>
</ul>
</p>
<p>
<strong>[16 Feb 2014]</strong>
[http://www.codesrc.com/files/scsi2sd/v3.2/ v3.2] firmware released. This is an important bugfix release. All SCSI2SD users are urged to upgrade to this version.
</p>
<p>
<strong>[02 Feb 2014]</strong>
I've created the [[SCSI2SD FAQ]] to answer some common questions. I am currently working on resolving compatibility issues with some samplers, adding configurable sector-sizes, and creating a smaller 2.5" version to suit old Powerbooks.
</p>
<p>
<strong>[17 Jan 2014]</strong>
Sign up for the SCSI2SD [http://lists.codesrc.com mailing lists] for firmware update notifications.
</p>
<p>
<strong>[27 Dec 2013]</strong>
[http://www.codesrc.com/files/scsi2sd/v3.1/ v3.1] firmware released.
<ul>
<li>Fix for reading the last sector of the SD card.</li>
<li>Performance improvements. 2.5x read, 2x write performance.</li>
</ul>
</p>
<p>
<strong>[9 Dec 2013]</strong>
[http://www.codesrc.com/files/scsi2sd/v3.0.1/ v3.0.1] firmware released.
</p>


== Overview ==
== Overview ==
Traditional hard drives last 5 years<sup>*</sup>. Maybe, if you're luckly, you'll get 10 years of
SCSI2SD is an emulator for old SCSI hard drives. It allows replacing one or several old broken SCSI drives with a SD memory card.
service from a particular drive. The lubricants wear out, the spindles rust.
SCSI2SD is a modern replacement for failed drives. It allows the use of vintage
computer hardware long after their mechanical drives fail. The use of SD memory cards
solves the problem of transferring data between the vintage computer and a
modern PC (who still has access to a working floppy drive ?)


<sup>*</sup>All statistics are made up.
 
== Unlicenced Copies ==
Older versions of the SCSI2SD hardware designs were published under the [https://www.gnu.org/licenses/gpl-3.0.en.html GPL] licence. This permits anyone to build their own board from the original or modified designs, so long as they abide by the licence terms.
 
* The source/designs of any modifications must be provided to those you distribute the board to.
* Clones are based on the obsolete V4 design, lack features, and may not be compatible with all the systems listed on these pages.
 
Artmix is currently selling unlicensed modified clones ("SD SusanoMonster"), and refuses to comply with the GPL. Please do not purchase this board. If you have already purchased, please request the seller provides you with the modified designs under the GPL licence.
 
== Which version should you buy ? ==
{|border="1px"
|SCSI2SD V6
|This board offers significantly better performance than the V5.x boards by adding support for synchronous SCSI transfers.
Easy access to virtual disk data over USB.
* See [[SCSI2SD V6 Compatibility]]
|-
|SCSI2SD V5.1/V5.2
|This is a newer version of the V5 board, with software-enabled termination, full-size SD card, and floppy-style power connector.
This version provides a faster startup time than V5, which is needed to boot some Amiga and Staubli machines
|-
|SCSI2SD V5.5
|Plugs directly into an external DB25 connector without a cable. Uses micro SD card.
|-
|SCSI2SD V5
|This is the older version which uses micro SD cards.
|-
|SCSI2SD for Powerbook
|Designed for Apple Powerbook laptops using 2.5" drives.
|}


== Purchase ==
== Purchase ==
I am actively building and selling SCSI2SD devices.


[http://shop.codesrc.com/ Buy Now!]
* [http://shop.codesrc.com/ codesrc.com] (Australia)
* [http://store.inertialcomputing.com/category-s/100.htm Inertial Computing] (USA)
* [https://itead.cc/product/scsi2sd/ itead] (China)
 
== 3rd party accessories ==
* [https://www.thingiverse.com/thing:4964960 Thingiverse] Bracket to house both the SCSI2SD card and Gotek Floppy adapter together in one housing by Paul Pritsis.
* [http://www.thingiverse.com/thing:1131419 Thingiverse] nibblernibbles has created a 3d-printable external enclosure for the SCSI2SD + DB25 adapter. Power can be supplied over USB for hosts which don't supply termination power.
* [http://www.shapeways.com/shops/roymaya SCSI2SD V5 & V6 Bracket] by Maya Designs
* [http://www.samplerzone.com SamplerZone.com] External cases for V5.0, V5.1, V5.2, and V6 boards, internal cables for all music samplers, and fully-realized SCSI2SD sampler solutions.


== Features ==
== Features ==
# In-built active terminator.
# In-built active terminator.
# Can optional supply terminator power back to the SCSI bus
# Emulates up to 4 SCSI devices (7 for the V6 version)
# Emulates a non-removable hard drive for maximum compatibility.
# Supports sector sizes from 64 bytes to 8192 bytes
# Supports sector sizes from 64 bytes to 8192 bytes
# Firmware updatable over USB
# Firmware updatable over USB
Line 99: Line 101:
#* Artificial limits on the SCSI disk size (eg. limit size to 4G to avoid OS bugs)
#* Artificial limits on the SCSI disk size (eg. limit size to 4G to avoid OS bugs)
#* Sector size (can also be set via the SCSI MODE SELECT command, as sent by SCSI format utilities).
#* Sector size (can also be set via the SCSI MODE SELECT command, as sent by SCSI format utilities).
# External LED connector.


== Technical Specifications ==
== Technical Specifications ==
{|border="1px"
{|border="1px"
|SCSI Interface
|
|SCSI-2 Narrow 8-bit 50-pin connector. Supports asynchronous transfers only.
|V5 hardware
|V5.1 hardware
|V5.2 hardware
|V5.5 hardware
|V6 hardware
|-
|Internal 50pin Narrow 8-bit SCSI connector
|Yes
|Yes
|Yes
|No
|Yes
|-
|DB25 SCSI Connector
|No
|Optional DB25 female socket.
|No
|DB25 male socket.
Direct plug-in without cable
|No
|-
|Synchronous SCSI Support
|No
|No
|No
|No
|Yes
FAST10 (10MB/s) synchronous transfers.
|-
|SCSI Terminator
|Active Terminator
Resistor packs can be removed from the socket to disable the terminator
|Active Terminator
Enabled via software using scsi2sd-util
|Active Terminator
Enabled via software using scsi2sd-util
|Active Terminator
Always-on
|Active Terminator
Enabled via software using scsi2sd-util
|-
|-
|SD Card Interface
|SD Card Interface
|Standard SDSC (1GB maximum size)<br />
|microSD, tested up to 64GB<br />
SDHC (32GB maximum size)<br />
Communication is via the SPI protocol at 25MHz (3MB/s theoretical max)
SDXC cards are untested. Donations welcome.<br />
|Full-size, tested up to 128GB<br />
Communication is via the SPI protocol at 25MHz.
Communication is via the SPI protocol at 25MHz (3MB/s theoretical max)
|Full-size, tested up to 128GB<br />
Communication is via the SPI protocol at 25MHz (3MB/s theoretical max)
|microSD, tested up to 64GB<br />
Communication is via the SPI protocol at 25MHz (3MB/s theoretical max)
|Full-size SD, tested up to 128GB<br />
Up to 20MB/s
|-
|USB Interface
|Firmware updates and configuration
USB 2.0 micro-B
|Firmware updates and configuration
USB 2.0 micro-B
|Firmware updates and configuration
USB 2.0 micro-B
|Firmware updates and configuration
USB 2.0 micro-B
|Firmware updates, configuration, and mass-storage
USB 2.0 micro-B.
 
Mass-storage at USB 2.0 FS speeds (1.2MB/s max)
 
Mass-storage at USB 2.0 HS available on 2021 revision (currently 7MB/s read)
|-
|-
|Power
|Power
|5V via standard molex drive connector.
|5V via standard Molex 4-pin drive connector, USB, or self-powered using the SCSI host termination power.
|-
2.35W maximum (500mA)
|Dimensions
 
|10cm x 10cm x 1.5cm
<strong>DO NOT CONNECT 12V</strong> at all if you need to make your own power cable as it risks destroying the board if you accidentally swap the wires.
A 3D-printable bracket is available to mount in a standard 3.5" hard disk bay.
|5V via floppy 4-pin drive connector, USB, or self-powered using the SCSI host termination power.
|}
2.35W maximum (500mA)
 
<strong>DO NOT CONNECT 12V</strong> at all if you need to make your own power cable as it risks destroying the board if you accidentally swap the wires.
|5V via floppy 4-pin drive connector, USB, or self-powered using the SCSI host termination power.
2.35W maximum (500mA)


== Performance ==
<strong>DO NOT CONNECT 12V</strong> at all if you need to make your own power cable as it risks destroying the board if you accidentally swap the wires.
As currently implemented:
|5V via DB25 SCSI connector, or USB.
2.35W maximum (500mA)


{|
<strong>Requires SCSI host that supplies terminator power on pin 25 of the DB25 socket</strong>
!Transfer Size (bytes):
|5V via floppy 4-pin drive connector, USB, or self-powered using the SCSI host termination power.
!512
2.35W maximum (500mA)
!2048
!8192
!65536
|-
|-
|Read
|Dimensions (L x W x H)
|2MB/s
|5cm x 10cm x 1.5cm
|2.1MB/s
|10cm x 9cm x 1.5cm
|2.5MB/s
|10cm x 9cm x 1.5cm
|2.6MB/s
|7.5cm x 5.5cm x 1.8cm (External case)
|10cm x 9cm x 1.5cm
|-
|-
|Write
|Performance
|125kB/s
Tested under optimal conditions.
|441kB/s
For comparison, here are some [http://mastodonpc.tripod.com/bench/scsi.html benchmarks] of some older SCSI hardware.
|1.5MB/s
|Up to 2.6MB/s read, 2.3MB/s write
|2.3MB/s
(1.1MB/s on most older SCSI hosts)
|Up to 2.6MB/s read, 2.3MB/s write
(1.1MB/s on most older SCSI hosts)
|Up to 2.6MB/s read, 2.3MB/s write
(1.1MB/s on most older SCSI hosts)
|Up to 1MB/s
|Up to 10MB/s.
|}
|}
For comparison, here are some [http://mastodonpc.tripod.com/bench/scsi.html benchmarks] of some older SCSI hardware.


== Compatibility ==
== Compatibility ==
=== Desktop systems ===
* [[SCSI2SD V5 Compatibility]]
* Mac LC-III and LC-475
* [[SCSI2SD V5.5 Compatibility]]
* Mac II running System 6.0.8
* [[SCSI2SD V6 Compatibility]]
* Mac SE/30
* [[2.5" Powerbook SCSI2SD Compatibility]]
* Apple IIgs using Apple II High Speed SCSI controller card (from v3.3)
* Symbolics Lisp Machine XL1200, using 1280 byte sectors (from v3.4)
* PDP-11/73 running RSX11M+ V4.6
* Microvax 3100 Model 80 running VMS 7.3 (needs patch against v3.5.2 firmware)
* Amiga 500+ with GVP A530
* Atari TT030 System V


=== Samplers ===
== Files ==
* Roland JS-30 Sampler
=== SCSI2SD V6 ===
* Akai S1000, S3200, S3000XL, MPC 2000XL, DPS 12
# [http://www.codesrc.com/files/scsi2sd-v6/latest Downloads for v6].
** SCSI cable reversed on S3200
# [http://www.codesrc.com/gitweb/index.cgi?p=SCSI2SD-V6.git;a=summary Git Browser]
** There are compatibility problems with the Akai MPC3000. It works (slowly) with the alternate Vailixi OS with multi-sector transfers disabled.
* [[EMU Emulator E4X]] with EOS 3.00b and E6400 (classic) with Eos 4.01
* Ensoniq ASR-X, ASR-10 (from v3.4, 2GB size limit)
** ASR-20 Requires TERMPWR jumper.
* Kurzweil K2000R
** See [http://kurzweil.com/knowledgebase/k2600/disk_mode_drives_and_scsi/9/ kurzweil.com] for size limits which a dependant on the OS version. Older OS versions have a 1GB limit.
** SCSI cable reversed
* Casio FZ-20M
** Requires TERMPWR jumper. The [http://synthark.com/resource/casio/FZ-20M_OperationManual.pdf manual] shows the pin25 of the DB25 connector is "not connected".
** May require <code>scsi2sd-config --apple</code> flag
* Yamaha EX5R


=== Other ===
A copy of all sources can be obtained via the command:
* HP 16601A logic analyzer
* Fluke 9100 series


== Files ==
git clone --recursive git://www.codesrc.com/git/SCSI2SD-V6
Firmware update utility and configuration tool [http://www.codesrc.com/files/scsi2sd/v3.5.2 download].


These files are currently available for Windows, Linux, and Mac OSX.
=== codesrc SCSI2SD V3, V4, Powerbook edition, V5.0a and V5.0b ===
# [http://www.codesrc.com/files/scsi2sd/latest Downloads for v3/v4/v5].
# [http://www.codesrc.com/gitweb/index.cgi?p=SCSI2SD.git;a=summary Git Browser]


The schematics, pcb layout, and source code is managed under the git version control system. A copy of all sources can be obtained via the command:
A copy of all sources can be obtained via the command:


  git clone --recursive git://www.codesrc.com/git/SCSI2SD
  git clone --recursive git://www.codesrc.com/git/SCSI2SD


Alternatively, the git sources can be viewed using your web browser by clicking [http://www.codesrc.com/gitweb/index.cgi?p=SCSI2SD.git;a=summary here].
=== Rabbit Hole Computing releases ===
 
Newer software releases may be available for the V5 series of boards from Rabbit Hole Computing.
The schematics and PCB layout files can be viewed/edited with the free [http://www.geda-project.org/ gEDA] tools. For those without access to gEDA, I've exported the content as PDF:
# [https://www.scsi2sd.com/v5/releases/ Rabbit Hole Computing releases]
* [http://www.codesrc.com/files/scsi2sd/schematic.pdf schematic.pdf]
# [https://github.com/rabbitholecomputing/SCSI2SD-V5 Rabbit Hole Computing git repository]
* [http://www.codesrc.com/files/scsi2sd/layout.pdf layout.pdf]
 
The software is built using the [http://www.cypress.com/psoccreator/ Cypress PSoC Creator] IDE.


== Howto ==
== Howto ==
Line 197: Line 247:
* [[SCSI2SD UserManual]]
* [[SCSI2SD UserManual]]
* [[FormatWithBasiliskII]] Format an SD card for use with Apple Macintosh hardware using the [http://basilisk.cebix.net/ Basilisk II] emulator
* [[FormatWithBasiliskII]] Format an SD card for use with Apple Macintosh hardware using the [http://basilisk.cebix.net/ Basilisk II] emulator
 
* [[SCSI2SD_Mods]]
== Alternative Open SCSI Projects ==
* [https://bitbucket.org/ajessop/scsi/wiki/Home AJ's alternative implementation]. AJ and I originally had a competition to design and build a SCSI device to boot an old Mac LCIII. The deadline for that competition has long-since expired without a winner, but we have both continued to progress our designs.
* [http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder&param=SCSI2IDE S2I] (was: SCSI2IDE)
* [http://micha.freeshell.org/ramdisk/index.php AVR based SCSI RAM disk]
 
== Old ==
 
For historical project information see [[SCSI2SD old]]

Latest revision as of 03:54, 22 July 2022

The SCSI Hard Drive Emulator for retro computing.

scsi2sd-5.1-6.0-small.jpg


Download

  1. Downloads for v6 hardware revisions. This firmware will NOT work on the older boards.
  2. See #Files section below for older boards

News

[14 May 2022]v6.4.14 Bugfix release

  • Fix firmware version displaying as "0.0" in scsi2sd-util when there is no SD card inserted.
  • Reduce some delays for slight performance improvements.
  • Use SD High-Speed mode on V6 2021 hardware.

[21 Jan 2022]v6.4.13 Bugfix release

  • Fix SCSI writes with sector sizes larger than 512.
  • Fix 2Gb SD cards being detected as 1Gb.
  • Fix for CD emulation stopping the drive when receiving a load/eject request

[11 Aug 2021]v6.4.12 Bugfix release

  • Fix USB disconnect issues.

[31 May 2021]v6.4.11 Hardware Support release

  • Bugfixes for previous 6.4.x versions
  • Updates to support the new 2021 revision of the SCSI2SD V6 boards
  • scsi2sd-util6 stability improvements (contributed by Jonathan Wakely).

SCSI2SD Archived News

Overview

SCSI2SD is an emulator for old SCSI hard drives. It allows replacing one or several old broken SCSI drives with a SD memory card.


Unlicenced Copies

Older versions of the SCSI2SD hardware designs were published under the GPL licence. This permits anyone to build their own board from the original or modified designs, so long as they abide by the licence terms.

  • The source/designs of any modifications must be provided to those you distribute the board to.
  • Clones are based on the obsolete V4 design, lack features, and may not be compatible with all the systems listed on these pages.

Artmix is currently selling unlicensed modified clones ("SD SusanoMonster"), and refuses to comply with the GPL. Please do not purchase this board. If you have already purchased, please request the seller provides you with the modified designs under the GPL licence.

Which version should you buy ?

SCSI2SD V6 This board offers significantly better performance than the V5.x boards by adding support for synchronous SCSI transfers.

Easy access to virtual disk data over USB.

SCSI2SD V5.1/V5.2 This is a newer version of the V5 board, with software-enabled termination, full-size SD card, and floppy-style power connector.

This version provides a faster startup time than V5, which is needed to boot some Amiga and Staubli machines

SCSI2SD V5.5 Plugs directly into an external DB25 connector without a cable. Uses micro SD card.
SCSI2SD V5 This is the older version which uses micro SD cards.
SCSI2SD for Powerbook Designed for Apple Powerbook laptops using 2.5" drives.

Purchase

3rd party accessories

  • Thingiverse Bracket to house both the SCSI2SD card and Gotek Floppy adapter together in one housing by Paul Pritsis.
  • Thingiverse nibblernibbles has created a 3d-printable external enclosure for the SCSI2SD + DB25 adapter. Power can be supplied over USB for hosts which don't supply termination power.
  • SCSI2SD V5 & V6 Bracket by Maya Designs
  • SamplerZone.com External cases for V5.0, V5.1, V5.2, and V6 boards, internal cables for all music samplers, and fully-realized SCSI2SD sampler solutions.

Features

  1. In-built active terminator.
  2. Emulates up to 4 SCSI devices (7 for the V6 version)
  3. Supports sector sizes from 64 bytes to 8192 bytes
  4. Firmware updatable over USB
  5. Highly configurable over USB
    • Selectable SCSI ID
    • Selectable parity support
    • Enable/disable Unit Attention Condition
    • Artificial limits on the SCSI disk size (eg. limit size to 4G to avoid OS bugs)
    • Sector size (can also be set via the SCSI MODE SELECT command, as sent by SCSI format utilities).
  6. External LED connector.

Technical Specifications

V5 hardware V5.1 hardware V5.2 hardware V5.5 hardware V6 hardware
Internal 50pin Narrow 8-bit SCSI connector Yes Yes Yes No Yes
DB25 SCSI Connector No Optional DB25 female socket. No DB25 male socket.

Direct plug-in without cable

No
Synchronous SCSI Support No No No No Yes

FAST10 (10MB/s) synchronous transfers.

SCSI Terminator Active Terminator

Resistor packs can be removed from the socket to disable the terminator

Active Terminator

Enabled via software using scsi2sd-util

Active Terminator

Enabled via software using scsi2sd-util

Active Terminator

Always-on

Active Terminator

Enabled via software using scsi2sd-util

SD Card Interface microSD, tested up to 64GB

Communication is via the SPI protocol at 25MHz (3MB/s theoretical max)

Full-size, tested up to 128GB

Communication is via the SPI protocol at 25MHz (3MB/s theoretical max)

Full-size, tested up to 128GB

Communication is via the SPI protocol at 25MHz (3MB/s theoretical max)

microSD, tested up to 64GB

Communication is via the SPI protocol at 25MHz (3MB/s theoretical max)

Full-size SD, tested up to 128GB

Up to 20MB/s

USB Interface Firmware updates and configuration

USB 2.0 micro-B

Firmware updates and configuration

USB 2.0 micro-B

Firmware updates and configuration

USB 2.0 micro-B

Firmware updates and configuration

USB 2.0 micro-B

Firmware updates, configuration, and mass-storage

USB 2.0 micro-B.

Mass-storage at USB 2.0 FS speeds (1.2MB/s max)

Mass-storage at USB 2.0 HS available on 2021 revision (currently 7MB/s read)

Power 5V via standard Molex 4-pin drive connector, USB, or self-powered using the SCSI host termination power.

2.35W maximum (500mA)

DO NOT CONNECT 12V at all if you need to make your own power cable as it risks destroying the board if you accidentally swap the wires.

5V via floppy 4-pin drive connector, USB, or self-powered using the SCSI host termination power.

2.35W maximum (500mA)

DO NOT CONNECT 12V at all if you need to make your own power cable as it risks destroying the board if you accidentally swap the wires.

5V via floppy 4-pin drive connector, USB, or self-powered using the SCSI host termination power.

2.35W maximum (500mA)

DO NOT CONNECT 12V at all if you need to make your own power cable as it risks destroying the board if you accidentally swap the wires.

5V via DB25 SCSI connector, or USB.

2.35W maximum (500mA)

Requires SCSI host that supplies terminator power on pin 25 of the DB25 socket

5V via floppy 4-pin drive connector, USB, or self-powered using the SCSI host termination power.

2.35W maximum (500mA)

Dimensions (L x W x H) 5cm x 10cm x 1.5cm 10cm x 9cm x 1.5cm 10cm x 9cm x 1.5cm 7.5cm x 5.5cm x 1.8cm (External case) 10cm x 9cm x 1.5cm
Performance

Tested under optimal conditions. For comparison, here are some benchmarks of some older SCSI hardware.

Up to 2.6MB/s read, 2.3MB/s write

(1.1MB/s on most older SCSI hosts)

Up to 2.6MB/s read, 2.3MB/s write

(1.1MB/s on most older SCSI hosts)

Up to 2.6MB/s read, 2.3MB/s write

(1.1MB/s on most older SCSI hosts)

Up to 1MB/s Up to 10MB/s.

Compatibility

Files

SCSI2SD V6

  1. Downloads for v6.
  2. Git Browser

A copy of all sources can be obtained via the command: 

git clone --recursive git://www.codesrc.com/git/SCSI2SD-V6

codesrc SCSI2SD V3, V4, Powerbook edition, V5.0a and V5.0b

  1. Downloads for v3/v4/v5.
  2. Git Browser

A copy of all sources can be obtained via the command: 

git clone --recursive git://www.codesrc.com/git/SCSI2SD

Rabbit Hole Computing releases

Newer software releases may be available for the V5 series of boards from Rabbit Hole Computing.

  1. Rabbit Hole Computing releases
  2. Rabbit Hole Computing git repository

Howto

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