RAIDON GR3630-WSB3 2 x 3.5-Inch HDD RAID Storage Embedded USB3.0 + eSATA + Firewire Host Interface/Notification of HDD Failure, Overheating and Fan Failure Through LCD ASIC: SR2045/Host Chip: ASM1051 + OXFW934DSB/Host Interface: USB 3.0 &amp; amp; eSATA &amp; amp; Firewire800  2 Device Interface: SATA 3.0 Gb/s/RAID Level: RAID 0, 1/Support Hard Drive: 23.5-Inch SATA 3.0Gb/s hard drive Support Single HDD Maximum Capacity: 3TB/Maximum Total Capacity: 6TB (Under RAID 0 Mode) Auto Rebuilding: Yes/LCD Display: Yes/Buzzer: Yes/LED Indicators: HDD Access/Alarm/Power Environment Detector: Temperature &amp; amp; Fan Failure Detector/Cooling Fan: DC-12V/6cm/4600 rpm Power Supply: Internal General Input 100~240V, Output DC 12V &amp; amp; 5V / 70W / Operating System: Windows, Linux and Mac Dimensions (mm): 122W x 215L x 102H / Weight (kg): 1.7