QNAP TS-459U-RP+ 4TB. Total storage capacity: 4000 GB, Hard drive capacity: 1000 GB, RAID levels: 0, 1, 5, JBOD. Internal memory: 1024 MB, Flash memory: 512 MB. Processor family: Intel Atom, Processor clock speed: 1800 MHz. Compliance industry standards: IEEE 802.3ad, Supported network protocols: TCP/IP, CIFS/SMB, AFP (3.2), NFS (v3), FTP, HTTP, HTTPS, Telnet, SSH, iSCSI, SNMP, Networking features: Gigabit Ethernet. Security algorithms supported: SSL/TLS, 256-bit AES, HTTPS, SSH