The TowerRAID TR4U-B is a selectable hardware JBOD or spanning enclosure that utilizes the widely available USB 2.0 interface for storage expansion. Designed with easy installation in mind, the trayless TR4U-B allows instant installation by simply inserting the hard drive after opening the protective ventilating cover. The new environmental friendly Auto-Power Synchronization design allows the unit to be powered on only when needed. The TR4U-B supports JBOD mode, which allows the computer to see individual hard drive separately. It also supports Spanning mode, which presents multiples hard drives as one combined drive. Having two different storage options makes the TR4U-B an effective way to expand storage using USB 2.0.

* Accesses four hard drives using only one cable.
* Host Interface:
o USB 2.0.
* Supports JBOD / Spanning.
* Drive interface: 4 x 3.5" SATA I / SATA II hard drive.
* Supports the latest 1TB Hard Drive. Up to 4TB in storage capacity. (*Max. 2TB volume when in Spanning mode).
o Supports Windows 2000, XP, Vista, and Windows Server 2003, MAC and Linux.

Model TR4U-B
Form Factor Compact Tower
HDD Trays 4 Hot-Swappable 3.5"
RAID Level JBOD / Spanning
Maximum Capacity 4TB (*Max. 2TB volume when in Spanning mode)
Auto Rebuilding N/A
Hot-Spare N/A
Host Interface & Transfer Rate USB 2.0
Drive Interface 4 x 3.5” SATA I/ SATA II
Cooling Fan 3.15" Ball Bearing Fan
Power Supply 150W (120V-240V)
Control Interface N/A
Status Indicators Power LED
Dimension (in) 5.3"W x 7.1"H x 10.0"D
Weight (lb) 5.9
Safety Regulations CE, FCC, UL
Limited Watrranty 1 Years