RAIDON iR2420-2S-S2 2 x 2.5-Inch HDD RAID Storage 3.5-Inch Floppy Size with RAID 1/Easy Ejected Design for Quick Installation/RAID Mode Switch ASIC: SR2045 RAID Chip/Host Interface: SATA/Transfer Rate: 300MB/s/RAID Level: RAID 0 &amp; amp; 1 Support Hard Drive: 22.5-Inch SATA HDD/SSD/Support Single HDD Maximum Capacity: 750GB / Maximum Total Capacity: 1.5TB (750GB2) (Under RAID 0 mode)/LED Indicators: Yes/Buzzer: Yes Power Supply: SATA 15 Pin (DC 5V &amp; amp; 12V)/Electricity Consuming: 10W (hard drives are excluded) Operating System: Windows XP/Vista/MAC OS/Linux/Windows 7 Dimensions (mm): 102W x 147L x 26H / Weight (kg): 0.35