Sapphire WRITE-PROTECT Drive Reader
This Sapphire WRITE PROTECT Drive Reader, equipped with an interface bridge that disables the WRITE function on the hardware level, allows accessing data on any 3.5" or 2.5" SATA hard drives without the risk of accidentally erasing or altering the content on the drive. This unique feature ensure absolute protection on any hard drive or SSD against virus contamination or data tampering. It is a great tool for sharing drives containing important data among different users or for forensic application. This Reader essentially treats any hard drive or SSD as a READ only media, similar to CD or DVD disc.

With the build-in USB 3.1/3.0 interface, this Reader can be attached to practically any computer equipped with USB 2. 0, USB 3.0 or USB 3.1 port. The USB 3.1 also ensure fast data access up to 10 Gbps when connecting to system equipped with USB 3.1 port. Integrated with a Snap-In removable drive cartridge system, any 3.5" hard drive can be easily added or removed from this Reader without any special tool. The included 2.5" to 3.5" hard drive adapter also enables loading 2.5" hard drive or SSD into the Reader. By using the optional Addonics' family of 2.5" flash drive kit, you can further expands the capability of this Reader to include various flash media such as mSATA SSD, the latest M2 (NGFF) SSD, the CFast or CF cards.




Note: Hard drive shown above is for illustration purpose only and is not part of the product


A 2.5" hard drive can also be installed into this Sapphire WRITE-PROTECT Drive Reader using the included Snap-In 25

Snap-In 25 on the left has the exact same dimension of the
3.5" hard drive on the right

Installing 2.5" SATA drive into the Snap-In 25


M2 card, mSATA SSD, CFast, CF, slim SATA or micro SATA HDD/SSD can be loaded into the Snap-In 25 with the following optional adapters

Shown with media side facing up

2.5" M2/mSATA SSD drive
kit (AD25M2MSA)

CFast card in 2.5" CFast
drive kit (AD25CFASTD-N)

CF card in 2.5" CF drive kit

Slim SATA SSD 2.5" HDD
adapter (AA25SEMBK)

1.8" micro SATA - 2.5" SATA
HDD adapter (AD18M25S

note: the flash cards shown above are for illustration purpose and are not part of the flash drive adapter

  • READ only drive cartridge system
  • Protect drive against virus contamination or data tempering
  • WRITE disabled at hardware level. No software hacking to circumvent the WRITE PROTECT function
  • No volatile memory
  • Drive appears to OS as READ only device. Options to format, delete and other commands that alter the content, partition table or MBR of the drive are all diabled by the OS (see screen shots from Windows OS below)
  • Supports any 3.5" hard drives
  • Supports any 2.5" HDD/SSD using the included Snap-In 25 (AE25SN35SA)
  • USB 3.1/3.0/2.0 interface
  • Drive can be added or removed like VHS cassette without any drive tray or special tool*
  • Can access data on flash media such as mSATA SSD, M2 (NGFF) SSD, CFast or CF card using the optional Addonics family of 2.5" Flash drive kit,
  • Rugged anodized aluminum construction for rough handling, fast cooling and for easy transportation
  • Connect to any system via any USB port
  • Maximum data throughput: USB 3.1 - 10,000 Mbps, USB 3.0 - up to 5,000 Mbps, USB 2.0 - 480 mbps
  • Key lock to secure hard drive inside the enclosure
  • Compact size for convenient transportation
  • Rear mount 40 x 40 mm cooling fan
  • LED for drive access and power
  • Plug and play
  • OS Compatibility: All Windows, Linux (Kernel 2.4 and above), Mac OS X and above

Sample of Windows 8 screen shots showing options to format, delete and other commands that alter the content or structure of the drive are all diabled by the OS 


  • Front of enclosure
    • One 3.5" Snap-In drive bay
    • Power and drive access LED
  • Rear of the enclosure
    • USB 3.1/3.0 B female connector
    • Power ON/OFF switch
    • Power input jack
    • 45 x 45 mm cooling fan
  • Enclosure material: Brushed black anodized aluminum with plastic front bezel
  • Power Adapter: 110/240V AC/DC 12V 3A
  • Power consumption ~ 1 watt (not including drive)
  • Dimensions (L x W x H): 9.88 x 6.88 x 2.00 in ( 251 x 175 x 50.8 mm)
  • Weight: ~ 2.45 lbs. (1.11 kg) without drive
  • Operating temperature and humidity: 0C° to +60C°, 5% to 95% RH (non-condensing)
  • Storage temperature and humidity: -30C° to +70C°, 5% to 90%


SHDU31WP - (Sapphire READ only drive reader with USB 3.1 connection)
Content: Sapphire enclosure with Snap-In mobile rack (AESNMS) and integrated USB 3.1 WRITE PROTECT bridge (ADSAU31R-WP), Snap-In 25 (AE25SN35SA), 6-foot USB 3.1/3.0 cable (AAU3AB6F), 110/240V AC/DC 12V power adapter (AAP12V3A-US), user guide
Price: 135.00


AD2U3PCI (2-port USB 3.0 PCI controller)
2-Port USB 3.0 PCI Controller, low profile bracket, Driver CD, User guide,
Price: 39.99
AD2U3PX1 (2-port USB 3.0 PCIe-1X controller)
2-Port USB 3.0 PCI-Express 1X Controller, low profile bracket, Driver CD, User guide,
Price: 22.00
AD25M2MSA (2.5" M2 / mSATA Flash drive kit)
Content: 2.5" M2 / mSATA flash drive kit with easy media installation or removal design (black color), user guide
Price: 27.95
AD25CFASTD-N (2.5" CFast HDD kit, open end, black )
Content: 2.5" CFast hard drive kit with open end black color bracket for easy media nstallation, user guide.
Price: 24.95
AD25CFD-N (2.5" CF HDD PRO, easy media insertion and removal, black color)
Content: 2.5" CF hard drive kit with a half open-end black color bracket for easy media installation.
Price: 26.95
AA25SEMBK (Slim SATA SSD 2.5" HDD adapter)
Content: 2.5" HDD adapter kit for slim SATA embedded SSD, user guiode
Price: 19.00
AD18M25S (1.8" micro SATA - 2.5" SATA HDD adapter)
Content: 1.8" micro SATA - 2.5" SATA HDD adapter,
Price: 19.00