Product Banner
Portable two-drive USB 3.0 RAID storage enclosure with TrayFree™ bays
    • Powerful RAID engine for speed and data security
    • Multiple connection types including USB 3.0
    • TrayFree bays for fast drive swaps


The RTX 220-3QR hard drive enclosure brings ease of use and flexibility to portable RAID storage.

The state-of-the-art hardware RAID controller built into the RTX 220-3QR offers RAID 0 (stripe) and RAID 1 (mirror) configuration options. If you're going to carry RTX 220-3QR wherever you go, rest assured it will connect to most computers. With four different connection options (USB 2.0, USB 3.0, FireWire 800, and eSATA), you'll be ready for whatever you encounter and will be able to transfer data at speeds of 150+ MB/s (depending on drives and connection type).

TrayFree bays make adding or swapping drives effortless. It's as easy as opening the door, sliding the drive in, and closing the door. No screws, no trays. It just works.

Additional features:

  • Support for any capacity 3.5” SATA hard drive
  • 3-year limited warranty
  • Free tech support by phone or email

Anyone who needs a robust RAID enclosure with USB 3.0 for 3.5-inch hard drives will find the RTX220-3QR a reliable device.

Part Numbers


2-bay TrayFree drive enclosure; RAID 0/1; USB3/eSATA/FW800

0TB (accepts SATA drives); US plug
part #: 35220-3130-0100

0TB (accepts SATA drives); UK plug
part #: 35221-3130-0100

0TB (accepts SATA drives); EU plug
part #: 35222-3130-0100

0TB (accepts SATA drives); AU plug
part #: 35223-3130-0100

4TB (2x2TB); RAID 1 NTFS format; US plug
part #: 35220-3136-2200

4TB (2x2TB); RAID 1 HFS+ format; US plug
part #: 35220-3136-3200

8TB (2x4TB); RAID 1 NTFS format; US plug
part #: 35220-3138-2200

8TB (2x4TB); RAID 1 HFS+ format; US plug
part #: 35220-3138-3200


Product name RTX220-3QR
Host (I/O) Ports (1) pair of FireWire 800: up to 800 Mbps
(1) USB 3.0: up to 5 Gbps
(1) eSATA: up to 3 Gbps
Drive Types Supported
  • SATA 3.5" drives
SATA Speed 3G
Bay Type TrayFree
Insertion Rating up to 50,000 drive insertions
Number of bays 2
Lockable Bays Yes
Supports S.M.A.R.T. disk info Yes
RAID Info RAID 0 (stripe), 1 (mirror)
Number of LEDs 7
Description of LEDs System power, system status, and RAID status
LEDs on each bay Power and drive access for each bay
Audible alarm Yes
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 XP or later
Windows Server 2003 or later
Mac OS X
Linux distributions that support the desired connection
Handle Yes
Fan(s) 6cm magnetic levitation fan
Construction material(s) Metal chassis and bay doors, ABS handle
Power switch 2 position: On / Off
Dimensions 10.94" x 6.85" x 6.30" (278mm x 174mm x 160mm)
Weight 8.50 lbs. (3.86 kg)
Populated Weight 11.50 lbs. (5.22 kg)
Compliancy FCC, CE, RoHS
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.

Product Images


Jun 9, 2011 - 1.72 MB
CRU Configurator v3.1
(for Intel Mac OS X 10.5 or 10.6)
Mar 27, 2013 - 13.65 MB
CRU Configurator
(for 32-bit and 64-bit versions of Windows)
Nov 14, 2013 - 3.75 MB
User Manual for RTX 220-3QR, RTX221-3QR, RTX Secure 222-3QR
Dec 3, 2013 - 359.89 KB
Quick Start Guide for RTX 220-3QR, RTX221-3QR, RTX Secure 222-3QR
Feb 27, 2015 - 9.12 MB
CRU Configurator v4.0.1.4 for Mac OS X 10.6 or later
Feb 27, 2015 - 810.25 KB
User manual for the Mac OS version of Configurator v4
Feb 27, 2015 - 12.81 MB
CRU Configurator for 64-bit Windows
Feb 27, 2015 - 750.99 KB
User manual for the Windows version of Configurator v4
Feb 27, 2015 - 11.37 MB
CRU Configurator for 32-bit Windows
May 8, 2015 - 11.74 MB
CRU Configurator for 32-bit Windows
May 8, 2015 - 13.23 MB
CRU Configurator for 64-bit Windows
May 8, 2015 - 9.56 MB
CRU Configurator v4.0.2.1 for Mac OS X 10.6 or later

Sending your message. Please wait...

Thanks for sending your message! We'll get back to you shortly.

There was a problem sending your message. Please try again.

Please complete all the fields in the form before sending.

Please enter a valid email address before sending.