USB 3.1 WriteBlocker

Fast forensic access to USB storage devices

Read-only access to 3 USB 3.1/3.0/2.0 storage devices at the same time; bus-powerable

Product name: USB 3.1 WriteBlocker

Patent: U.S. Patent No. 10,430,361

Host (I/O) Ports: (1) USB 3.2 Gen 2 Type-C: up to 10 Gbps

Drive Types Supported:

  • USB Thumb Drives
  • USB drives via USB cable (if the device class is USB Mass Storage Device and it does not use proprietary firmware)

Number of LEDs: 1

Description of LEDs: Power/Authentication status

Operating system compatibility: Windows 11, 10 and 8.1 (note: virtual machines not supported)

Construction material(s): ABS

Power input connector: Barrel connector (center pin positive)

Bus power: Yes (one port)

Dimensions: 3.43" x 2.05" x 1.02" (87mm x 52mm x 26mm)

Weight: 0.13 lbs. (0.06 kg)

Write Blocking: Yes

Write Blocked ports: Two USB 3.2 Gen 2 Type-C, one USB 3.0 Type-A

Compliancy: FCC, CE, RoHS, RCM

Warranty: WiebeTech provides a 3-year limited warranty for this product.

Technical Support:

Your investment in WiebeTech 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 or call us at +1 (360) 816-1800.


About USB 3.1 WriteBlocker

Digital forensics investigators, lawyers, and corporate IT staff who want to view, examine, and image drives quickly and easily, look to the CRU® WiebeTech® USB 3.1 WriteBlocker™ to ensure they are protecting and not altering data.

The handheld and lightweight USB 3.1 WriteBlocker connects via a Windows operating system host's USB 3.1 interface to allow investigators and technicians to look through the contents of a drive without risking any damage or disruption of source data. Simply use the included USB 3.1 cable to connect the USB 3.1 WriteBlocker to the drive or drives you wish to inspect.

Additional features:

  • Bus powered
  • Status LED indicates if drive is safe to inspect
  • Industry-leading 3-year warranty
  • Free, US-based customer support

The WiebeTech WriteBlocking Validation Utility, our complimentary Windows application, tests the reliability of any write blocker available, hardware or software.

  • Native USB 3.1 write blocking with extraordinary speeds
  • Reliable evidence protection
  • Simultaneous write blocking of three devices

Included Items

  • USB 3.x cable (type C to C)
  • USB 3.0 cable (type C to A)
  • AC adapter
  • Quick start guide
  • USB thumb drive containing drivers and related files

Documentation and Downloads:

Quick Start Guide for USB 3.1 WriteBlocker
Aug 31, 2018 - 520.65 KB

Windows Drivers for USB 3.0 & USB 3.1 WriteBlocker (32-bit and 64-bit)
Sep 6, 2018 - 1.54 MB

WriteBlocking Validation Utility (64-bit Windows)
Jul 29, 2022 - 12.68 MBare suspendisse sed.


All rights reserved. Visualux Ltd

© 2023

We need your consent to load the translations

We use a third-party service to translate the website content that may collect data about your activity. Please review the details and accept the service to view the translations.