Hardware Specifications CPU CPU Model Intel Atom C2538 CPU Architecture 64-bit CPU Frequency Quad Core 2.4 GHz Hardware Encryption Engine (AES-NI)  Memory System Memory 2 GB DDR3 Memory Module Pre-installed 2GB (1 x 2GB) Total Memory Slots 2 Memory Expandable up to 16 GB (8 GB x 2) Storage Drive Bays 4 Maximum Drive Bays with Expansion Unit 8 Compatible Drive Type* (See all supported drives) •3.5" SATA HDD •2.5" SATA HDD •2.5" SATA SSD Maximum Internal Raw Capacity 48 TB (12 TB drive x 4) (Capacity may vary by RAID types) Maximum Raw Capacity with Expansion Units 96 TB (48 TB + 12 TB drive x 4) (Capacity may vary by RAID types) Maximum Single Volume Size 108 TB Hot Swappable Drive  Notes The maximum single volume size is not directly related to the maximum raw capacity. (Learn more) External Ports RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support) USB 3.0 Port 2 eSATA Port 1