DiskStation 4-bay (diskless) Dimensions W x H x D: 168 x 184 x 230 mm LAN ports: 1x 10/100/1000 Processor: Marvell Armada 88F6828 Dual Core 1.3GHz RAM: 512 MB DDR3 HDD Form Factor: 2.5" / 3.5" HDD interface: SATA / SSD Capacity: 0 TB HDD slots: 4