Asustor AS1004Tv2 A high capacity home multimedia hub Exceptional transfer performance Ultra-quiet operation Energy efficient low power consumption Hand screw design for toolless installation Stylish diamond-plate finished cover design CPU: Marvell ARMADA-385 1GHz (Dual-Core) Processor Hardware encryption engine integrated Memory: 512MB DDR3 Memory Expandable up to: not expandable HDD: 4 x SATA3 6Gb/s; 3.5' HDD Maximum Internal Raw Capacity: 48 TB (12 TB HDD X 4, Capacity may vary by RAID types) Maximum Drive Bays with Expansion Unit: 12 Maximum Raw Capacity with Expansion Units : 144 TB (12 TB HDD X 12, Capacity may vary by RAID types) Maximum Single Volume Size: 16TB Expansion: USB 3.0 x 2 Network: Gigabit Ethernet x 1 Output: N/A System Fan: 120mm x 1 Power Supply Unit / Adapter: 90W x1 Input Power Voltage: 100V to 240V AC Certification: FCC, CE, VCCI, BSMI, C-TICK Size: 165(H) x 164(W) x 218(D) mm Weight: 1.5 kg / 3.31 lbs< Flexible configuration capacity The AS10 v2 series features an updated internal hard drive slot design that is fully compatible with 3½' hard drives. It also supports hard drives with a large capacity and improves the flexibility for those who wish to build private clouds