QNAP TS-559 Pro+, 5x 3 TB. Total storage capacity: 15000 GB, RAID levels: 0, 1, 5, 6, 10, JBOD, Hard drive size: 63.5/88.9 mm (2.5/3.5 "). Flash memory: 512 MB. Processor family: Intel Atom. Compliance industry standards: IEEE 802.3, 802.3u, 802.3ab, Supported network protocols: TCP/IP (IPv4, IPv6), CIFS/SMB, AFP (3.1), NFS, FTP, HTTP, HTTPS, Telnet, SSH, iSCSI, SNMP, Networking features: Gigabit Ethernet. Security algorithms supported: 256-bit AES, HTTPS, SSH, SSL/TLS