QNAP TS-251 2-Bay Personal Cloud NAS, Intel 2.41GHz Dual Core CPU with Media Transcoding (TS-251-US)

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SpecificationsMfr Part Number: TS-251-USHardware:CPU: Intel Celeron Processor (2.41GHz, Dual-Core)Memory: 1GB DDR3L RAM (expandable up to 8GB)Flash Memory: 512MB DOMHDD Capacity: 2x 3.5" or 2.5" SATA 6Gb/s, SATA 3Gb/s hard drive or SSD
HDD Tray: 2x Hot-swappable traysLAN Port: 2x Gigabit RJ-45 Ethernet PortsLED Indicators: Status, LAN, USB, HDD 1, HDD 2USB: 2x USB 3.0 Ports (1 front, 1 rear), 2x USB 2.0 Ports (rear); Support USB printer, pen drive, and USB UPS etcHDMI: 1Buttons: Power/Status, USB One-Touch-Backup, resetAlarm Buzzer: System warningIR Receiver: MCE-compatibleSecure Design: Kensington security slot for theft preventionOperating System: QTS 4.1 (embedded Linux)Networking:TCP/IP – IPv4 & IPv6Dual Gigabit NICs with jumbo frame (failover, multi-IP settings, port trunking/NIC teaming)Service binding based on network interfacesProxy client, proxy serverDHCP client, DHCP serverProtocols – CIFS/SMB, AFP (v3.3), NFS(v3), FTP, FTPS, SFTP, TFTP, HTTP(S), Telnet, SSH, iSCSI, SNMP, SMTP, and SMSCUPnP & Bonjour discoveryUSB Wi-Fi adapter supportSecurity:Network access protection with auto-blocking: SSH, Telnet, HTTP(S), FTP, CIFS/SMB, AFPCIFS host access control for shared foldersFIPS 140-2 validated AES 256-bit volume-based data encryptionAES 256-bit external drive encryptionImportable SSL certificateInstant alert via E-mail, SMS, beep, and L