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©2013 CRU Acquisition Group, LLC. All rights reserved.
For the full user manual and more information, see 

www.cru-inc.com. 
A9-000-0036-1 Rev. 1.0

QUICK START GUIDE

TECHNICAL SUPPORT 
Your investment in CRU products is backed up by our 

free technical support for the lifetime of the product. 

Contact us through our website, cru-inc.com/support or 

call us at 1-800-260-9800 or 1-360-816-1800. 

PRODUCT WARRANTY
CRU warrants this product to be free of significant de-

fects in material and workmanship for a period of 2 years 

from the original date of purchase. CRU’s warranty is 

nontransferable and is limited to the original purchaser.

ToughTech is a registered trademark and CRU is a trade-

mark of CRU Acquisition Group, LLC.

Protecting Your Digital Assets

TM

Operating Your  
ToughTech m3

Entering  
WriteProtect Mode

Returning to Normal  
Read/Write Mode

PRESS  

& HOLD

PRESS  

& HOLD

MAKE SURE USB  

IS UNPLUGGED

MAKE SURE USB  

IS UNPLUGGED

LED COLOR DEPENDS ON MODE. 
LED BLINKS WHEN DISK IS IN USE.

READ/WRITE MODE

WRITE PROTECT  

(READ-ONLY MODE)

PLUG IN

PLUG IN

LED TURNS 

YELLOW

LED TURNS 

GREEN

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