Storage Seagate, Business Storage, 4 Bay, 8TB (2x4TB NAS HDD), ARM Dual-core 1.2GHz CPU / 512MB DDRIII / Kensington Security Slot / 2 x USB 3.0 Ports / 2 x 10/100/1000 Base-TX / 4 x SATA II channels / Hot swappable HDD trays / Support of 2.5- and 3.5-inch