Synology DS211 NAS Server. Maximum capacity: 4 TB, RAID levels: 0, 1, JBOD, Hard drive interface: Serial ATA, Serial Attached SCSI (SAS). Internal memory: 256 MB. Processor clock speed: 1600 MHz. Supported network protocols: CIFS, AFP, FTP, Telnet, SSH, NFS, Networking features: Gigabit, Cabling technology: 10\100\1000BASE-T(X). Power requirements: 100 - 240V, Power consumption (typical): 22 W, Power consumption (sleep mode): 11 W