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Protecting Your 
Digital Assets

Protecting Your 
Digital Assets

CRU

®

 RAX

® 

3QR Rack Enclosure

Thank you for purchasing CRU’s RAX 3QR enclosure. The RAX 3QR enclosure 
is a rack-mountable storage enclosure that incorporates removable drive 
carriers that make it easy to use multiple hard drives in the same enclosure. 
RAX 3QR enclosures provide four connection types that allow you the needed 

flexibility to connect to your host computer, including USB 3.0 which provides 

up to a 5 Gbps transfer rate.

Features 

• 

Disk setup is near-instantaneous and is capable of JBOD, RAID 0 

and 1 disk modes.

• 

TrayFree Models (RAX210-3QR) allow for easy insertion and 

removal of hard drives. Models with removable carriers (RAX211-

3QR) enclose and protect hard drives when removed from the RAX 

enclosure.

• 

eSATA, USB 2.0, and USB 3.0 connections are provided for a variety 

of connectivity.

• 

Specially designed drive and carrier interfaces are built to withstand 

tens of thousands of insertions.

•  Rugged all-metal construction for superior durability.

Download a copy of the complete User Manual at 

www.cru-inc.com

.

© 2014, 2019 CRU Acquisition Group LLC, ALL RIGHTS RESERVED. RAX

®

 and CRU

®

  are trademarks of CRU Acquisition Group, LLC and are protected 

by trademark law.

Product Warranty

CRU warrants this product to be free of significant defects in material and workmanship for a period of three years from the original date of purchase. 

CRU’s warranty is nontransferable and is limited to the original purchaser.

Limitation of Liability
The warranties set forth in this agreement replace all other warranties. CRU expressly disclaims all other warranties, including but not limited to, the 
implied warranties of merchantability and fitness for a particular purpose and non-infringement of third-party rights with respect to the documentation 
and hardware. No CRU dealer, agent, or employee is authorized to make any modification, extension, or addition to this warranty. In no event will CRU or 
its suppliers be liable for any costs of procurement of substitute products or services, lost profits, loss of information or data, computer malfunction, or any 
other special, indirect, consequential, or incidental damages arising in any way out of the sale of, use of, or inability to use any CRU product or service, 
even if CRU has been advised of the possibility of such damages. In no case shall CRU’s liability exceed the actual money paid for the products at issue. 
CRU reserves the right to make modifications and additions to this product without notice or taking on additional liability.

FCC Compliance Statement: “This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device 
may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired opera

-

tion.” 

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are 
designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment 
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful 
interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will 
be required to correct the interference at this own expense.

In the event that you experience Radio Frequency Interference, you should take the following steps to resolve the problem: 
1) 

Ensure that the case of your attached drive is grounded. 

2) 

Use a data cable with RFI reducing ferrites on each end. 

3) 

Use a power supply with an RFI reducing ferrite approximately 5 inches from the DC plug.

4) 

Reorient or relocate the receiving antenna. 

FOR OFFICE OR COMMERCIAL USE

Product Models

RAX210-3QR, RAX211-3QR

Interface Types & Speeds

• 

USB 3.0: up to 5 Gbps

• 

USB 2.0: up to 480 Mbps

• 

eSATA: up to 3 Gbps                                

Drive Types Supported

3.5-inch SATA Hard Drives

Data Connectors

• 

One (1) USB 3.0/2.0 connector

• 

One (1) eSATA connector

RAID Levels

JBOD, 0, 1

Operating System 
Requirements

• 

Windows 8.1, 7, Vista, or XP

• 

Windows Server 2012, 2008, or 2003 product families

• 

Mac OS X 10.4.x or higher

• 

Linux distributions that support the connection type used    

Compliance

EMI Standard: FCC Part 15 Class A, CE
EMC Standard: EN55022, EN55024

Shipping Weights

• 

17 pounds without drives (includes accessories)

•  23 pounds with drives

Dimensions

16.89” x 16.26” x 1.73” (429mm x 413mm x 44mm)

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. 

A9-210-0012-1 Rev. 1.1

Models Covered:
RAX210-3QR

RAX211-3QR 

RAX Branding

2c85m76y
PMS 711C

68c70m

PMS 2726

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