QNAP TS-269L 4TB. Total storage capacity: 4000 GB, Hard drive capacity: 2000 GB, Maximum capacity: 8 TB. Memory type: DDR3, Internal memory: 1024 MB, Flash memory: 512 MB. Processor family: Intel Atom, Processor clock speed: 1.86 MHz. Compliance industry standards: IEEE 802.3ad, Supported network protocols: CIFS/SMB, AFP (v3.3), NFS(v3), FTP, FTPS, SFTP, TFTP, HTTP(S), Telnet, SSH, iSCSI, SNMP, SMTP, SMSC, Networking features: Dual Gigabit Ethernet. Security algorithms supported: 256-bit AES, SSH, SSL/TLS