The TVS-471 is a powerful NAS storage solution designed for I/O-intensive tasks, mission-critical business applications and fast-growing data storage needs. Incorporating reliability and security, the TVS-471 delivers high performance with persistent throughput and provides a comprehensive storage solution for SMBs to build a reliable private cloud. Device Type: NAS server Host Connectivity: Gigabit Ethernet Total Storage Capacity: 0 GB Installed Devices / Modules Qty: 0 (installed) / 4 (max) Dimensions (WxDxH): 7.1 in x 9.3 in x 7 in Weight: 10.05 lbs Localization: United States Processor: 1 x Intel Core i3 4150 3.5 GHz ( Dual-Core ) Storage Controller: RAID SATA 6Gb/s - RAID 0, 1, 5, 6, 10, JBOD, 5 hot spare Networking: 10Mb LAN, 100Mb LAN, GigE Power: AC 120/230 V ( 50/60 Hz ) Storage Operating System: QNAP QTS 4.1 System Requirements: UNIX, Linux, Apple MacOS X, Microsoft Windows XP or later, Microsoft Windows Server 2003 Device Type: NAS server Host Connectivity: Gigabit Ethernet Total Storage Capacity: 0 GB Installed Devices / Modules Qty: 0 (installed) / 4 (max) Width: 7.1 in Depth: 9.3 in Height: 7 in Weight: 10.05 lbs Built-in Devices: Status LCD, LED panel Localization: United States Processors Installed: 1 x Intel Core i3 4150 3.5 GHz Number of Cores: Dual-Core Max Supported Qty: 1 RAM Installed: 4 GB (installed) / 16 GB (supported) - DDR3 Flash Memory Installed: 512 MB Type: RAID Interface Type: SATA 6Gb/s RAID Level: RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, JBOD, RAID 5 hot spare Data Link Protocol: 10Mb LAN, 100Mb LAN, GigE Network / Transport Protocol: TCP/IP, UDP/IP, iSCSI, SMTP, FTP, DHCP, Bonjour, SMB, DDNS Remote Management Protocol: SNMP 2, Telnet, SNMP 3, HTTP, HTTPS, TFTP, SSH Network Services Compatibility: Microsoft Active Directory (AD), Apple Bonjour Protocol, File Level Security (ACLs), DHCP, DDNS, Microsoft CIFS, Network File System (NFS), FTP, FTPS, Server Message Block (SMB), Apple File Protocol (AFP), HTTP, HTTPS, Web-based Distributed Authoring and Versioning (WebDAV) Features: VPN support, trunking, LDAP support, wake on LAN (WOL), Syslog support, E-mail alert, print server, IPv6 support, firmware upgradable, proxy server, backup server, file sharing, Trivial File Transfer Protocol (TFTP) support, SSH support, Jumbo Frames support, DHCP server, FTP server, SMS alert, UPnP Media Server, IPv4 support, surveillance station, teaming support, Apple Time Machine compatible, TFTP server, DHCP client, e-mail notification, cloud backup, VPN Server Encryption Algorithm: 256-bit AES Compliant Standards: UPnP Expansion Bays: 4 (total) / 4 (free) x hot-swap - 2.5 / 3.5 Expansion Slots: 1 (total) / 1 (free) x PCI Express 2.0 x4 1 (total) / 1 (free) x PCI Express 3.0 x8 Interfaces: 4 x Ethernet 1000Base-T - RJ-45 2 x USB 2.0 - Type A 3 x USB 3.0 - Type A 1 x HDMI output Cables Included: 4 x network cable Features: Audible alarm, lockable, K-lock security slot, built-in 2 cooling fans Compliant Standards: FIPS 140-2 Power Device: X internal power supply Voltage Required: AC 120/230 V ( 50/60 Hz ) Power Provided: 250 Watt Storage Operating System: QNAP QTS 4.1 OS Required: UNIX, Linux, Apple MacOS X, Microsoft Windows XP or later, Microsoft Windows Server 2003 Min Operating Temperature: 32 °F Max Operating Temperature: 104 °F Humidity Range Operating: 5 - 95% (non-condensing) Sound Emission: 17.3 dB