NVMe WriteBlocker

    • Examine the contents of NVMe SSDs without modifying the contents
    • Reliable evidence protection
    • Supports M.2 and U.2 SSDs
The NVMe WriteBlocker allows you to examine NVMe U.2 and M.2 solid state drives in a write-blocked mode so you can read files on the drive without altering the contents. It's useful for digital investigators and IT technicians.

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Technical Specs

Product name NVMe WriteBlocker
Host (I/O) Ports (1) USB 3.2 Gen 2 Type-C: up to 10 Gbps
Drive Types Supported
  • PCIe/NVMe M.2 (M Key) and U.2 drives
Supports S.M.A.R.T. disk info Yes
Number of LEDs 6
Description of LEDs Write-block status, error detection, drive access, hidden area detection, DC power input, +5V/+12V power output
LCD Screen Two-line backlit LCD controlled with four soft-touch menu navigation buttons
LCD Info 2 lines x 16 characters width
LCD Backlight Yes
Navigation menu LCD/button-driven menu system
Operating system compatibility Windows 10 and 8.1
Windows Server 2019, 2016, and 2012 product families
macOS 10.14 “Mojave” or newer
Red Hat Enterprise Linux and Ubuntu LTS
Power switch 2 position: On / Off
Dimensions 2.95" x 4.33" x 1.06" (75mm x 110mm x 27mm)
Weight 0.40 lbs. (0.18 kg)
Write Blocking Yes
Compliancy FCC, CE, RoHS, RCM
Warranty CRU provides a 3-year limited warranty for this product.
Technical Support Your investment in CRU products is backed up by our free technical support for the lifetime of the product. If you need to contact us for any reason, visit cru-inc.com/support or call us at 1-800-260-9800 or +1-360-816-1800.
Resources and Documents

User Manual for NVMe WriteBlocker
Jan 25, 2021 - 2.17 MB

Product Description

Forensically preserves data as evidence

Keep the contents of your M.2 and U.2 NVMe SSDs untouched and unmodified, even as you examine and image them. Useful if you are a forensic investigator, IT technicial, lawyer, or cybersecurity analyst. 


Quick startup

To view an NVMe drive for evidence, just connect it to the NVMe WriteBlocker and turn it on. You’ll be able to preview the drive and its contents without making any changes to it.


Information at your fingertips

The LED indicators and LCD menu screen let you quickly access important SMART data such as hours used or number of power cycles. It can also display the model and serial number reported by the NVMe SSD's firmware.


Wide-ranging system compatibility

The NVMe WriteBlocker can be used with any computer that has a USB-C or USB-A connector.


The best customer support

Our free US-based customer support is available to help you troubleshoot throughout the life of your product. Additionally, a three-year warranty guarantees replacement of your NVMe WriteBlocker in case of hardware failure.




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Products and Accessories

NVMe WriteBlocker
Writeblocked access to M.2 & U.2 NVMe drives; LCD; USB 3.2 Gen2 10Gbps. Kit including drive adapters, USB cables, and AC adapter
US plug
part #: 31350-1964-0000
Ships in: 1-2 Days

UK plug
part #: 31351-1964-0000
Ships in: 1-2 Days

Euro plug
part #: 31352-1964-0000
Ships in: 1-2 Days

AUS plug
part #: 31353-1964-0000
Ships in: 1-2 Days