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<strong>1 Apr , 2019</strong> - We have another batch of newly-manufactured SCSI2SD V6 [https://store.inertialcomputing.com/SCSI2SD-v6-p/scsi2sd-v6-revf.htm boards in stock]
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<strong>1 September 2022</strong> - Due to ongoing global semiconductor component shortages, we're unable to produce more SCSI2SD V5 and V6 boards at this time. As a result of these shortages, Rabbit Hole Computing has developed an alternative SCSI emulation product, [https://zuluscsi.com ZuluSCSI]. Check out ZuluSCSI instead. It's SCSI command handling code is inherited from SCSI2SD V6, and it performs significantly better than SCSI2SD V5 in nearly all benchmarks. ZuluSCSI is a great alternative to SCSI2SD, and available for purchase today from  [https://store.rabbitholecomputing.com/ProductDetails.asp?ProductCode=ZuluSCSI-V1.1-REV-2022C Rabbit Hole Computing]
  
<strong>29 Jan , 2019</strong> - SCSI2SD V5.1 is again available for purchase at the [http://store.inertialcomputing.com/product-p/scsi2sd-v5.1.htm Inertial Computing Store]
 
  
<strong>20 September, 2018</strong> - SCSI2SD V5 firmware version 4.8.1 is now available for download at [http://scsi2sd.com/v5/files/v4.8/firmware http://scsi2sd.com/v5/files/v4.8.1/firmware]
 
  
<strong>29 Aug, 2018</strong> - Inertial Computing now has a full production run of SCSI2SD V5.1 in stock, and these are now available for purchase at the [http://store.inertialcomputing.com/product-p/scsi2sd-v5.1.htm Inertial Computing Store]
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The latest SCSI2SD firmware and configuration utilities can be found at  [http://docs.scsi2sd.com http://docs.scsi2sd.com]
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{| class="wikitable"
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|-
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! style="font-family:Arial, Helvetica, sans-serif !important;;" | SCSI2SD model
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! <img src="https://www.scsi2sd.com/images/SCSI2SD-V5.1-halfres.jpg" width="300"><br>V5.1 (discontinued)
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! [[File:SCSI2SD-V5.2-Rev2020a.jpg|200px|thumb|left|SCSI2SD V5.2]]
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! <img src="https://www.scsi2sd.com/images/SCSI2SD-V5.5-small.jpg" width="300"><br> SCSI2SD V5.5
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! [[File:SCSI2SD-V6-Rev2020c.jpg|200px|thumb|left|SCSI2SD V6]]
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|-
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| SD card slot
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| colspan="2" | full size
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| microSD
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| full size
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|-
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| SD card interface
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| colspan="3" | Tested up to 256GB. Communication is via the SPI protocol at 25MHz (3MB/s theoretical max)
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|
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|-
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| SCSI Interface
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| SCSI-2 Narrow 8-bit 50-pin IDC <br />connector,<br />Optional DB25 female socket<br />Supports asynchronous transfers only.<br />
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| SCSI-2 Narrow 8-bit <br />50 IDC pin connector<br /><br />Supports asynchronous transfers only.<br />
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| Male DB-25 socket<br /><br /><br />Supports asynchronous transfers only.<br />
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| SCSI-2 Narrow 8-bit 50 IDC pin connector<br />FAST10 (10MB/s) synchronous transfer.<br />
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|-
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| SCSI Termination
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| colspan="2" | Software controlled active termination, via scsi2sd-util
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| Active terminator, always on
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|
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|-
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| Dimensions
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| colspan="2" | 10cm x 9cm x 1.5cm
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| 7.5cm x 5.5cm x 1.8cm (External case)
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| 10cm x 9cm x 1.5cm
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|-
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| Performance
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| colspan="2" | Up to 2.6MB/s read, 2.3MB/s write<br /><br />(1.1MB/s on most older SCSI hosts)
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| Up to 1MB/sec
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| Up to 10MB/s
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|-
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| USB Interface
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| colspan="3" | Firmware updates and configuration<br />USB 2.0 micro-B
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| Firmware updates, configuration, and mass-storage<br />USB 2.0 micro-B. Mass-storage at USB 2.0 FS speeds (1.2MB/s max)
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|-
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| Power
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| style="vertical-align:middle;" | 5V via:<br />* standard 4-pin floppy-drive connector<br />* micro USB<br />* self-powered using the SCSI host termination power<br /><br />
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| style="vertical-align:middle;" | 5V via:<br />* standard 4-pin floppy-drive connector<br />* micro USB<br />* self-powered using the SCSI host termination power<br />* Regulated 5V via optional DC barrel jack.<br />
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| Self-powered using the SCSI host termination power,<br />or via USB. 2.35W maximum (500mA)<br /><br />To function without external power via USB, requires SCSI host that <br />supplies terminator power on pin 25 of the DB25 socket
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| 5V via standard 4-pin floppy-drive connector, USB,<br />or self-powered using the SCSI host termination power<br /><br />
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|-
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| Current Draw
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| colspan="4" style="text-align:center;" | 2.35W maximum (500mA)
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|}

Latest revision as of 08:02, 8 October 2022

1 September 2022 - Due to ongoing global semiconductor component shortages, we're unable to produce more SCSI2SD V5 and V6 boards at this time. As a result of these shortages, Rabbit Hole Computing has developed an alternative SCSI emulation product, ZuluSCSI. Check out ZuluSCSI instead. It's SCSI command handling code is inherited from SCSI2SD V6, and it performs significantly better than SCSI2SD V5 in nearly all benchmarks. ZuluSCSI is a great alternative to SCSI2SD, and available for purchase today from Rabbit Hole Computing


The latest SCSI2SD firmware and configuration utilities can be found at http://docs.scsi2sd.com


SCSI2SD model
V5.1 (discontinued)
SCSI2SD V5.2

SCSI2SD V5.5
SCSI2SD V6
SD card slot full size microSD full size
SD card interface Tested up to 256GB. Communication is via the SPI protocol at 25MHz (3MB/s theoretical max)
SCSI Interface SCSI-2 Narrow 8-bit 50-pin IDC
connector,
Optional DB25 female socket
Supports asynchronous transfers only.
SCSI-2 Narrow 8-bit
50 IDC pin connector

Supports asynchronous transfers only.
Male DB-25 socket


Supports asynchronous transfers only.
SCSI-2 Narrow 8-bit 50 IDC pin connector
FAST10 (10MB/s) synchronous transfer.
SCSI Termination Software controlled active termination, via scsi2sd-util Active terminator, always on
Dimensions 10cm x 9cm x 1.5cm 7.5cm x 5.5cm x 1.8cm (External case) 10cm x 9cm x 1.5cm
Performance Up to 2.6MB/s read, 2.3MB/s write

(1.1MB/s on most older SCSI hosts)
Up to 1MB/sec Up to 10MB/s
USB Interface 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)
Power 5V via:
* standard 4-pin floppy-drive connector
* micro USB
* self-powered using the SCSI host termination power

5V via:
* standard 4-pin floppy-drive connector
* micro USB
* self-powered using the SCSI host termination power
* Regulated 5V via optional DC barrel jack.
Self-powered using the SCSI host termination power,
or via USB. 2.35W maximum (500mA)

To function without external power via USB, requires SCSI host that
supplies terminator power on pin 25 of the DB25 socket
5V via standard 4-pin floppy-drive connector, USB,
or self-powered using the SCSI host termination power

Current Draw 2.35W maximum (500mA)