QNAP (4712511127690 / TS-251+-2G) - AC input voltage: 100-240 V - Cloud,iSCSI LUN - Kensington - AC,LAN (RJ-45) - White - Tower - Fan - Active - Intel Celeron Dual-Core - Quad-Core - Intel Celeron - Home & Home Office | Bay Desktop NAS Enclosure
QNAP (5051868006326 / TS-251A-4G/2TB-RED) - AC input voltage: 100-240 - Access Control List ACL - Backup function - Built-in FTP server - Built-in iTunes server - Built-in UPnP AV media server - Cable lock slot | USB QuickAccess
QNAP (5051868030079 / TS-251+-8G/20TB-RED) - AC input voltage: 100/240 V - Number of fans: 1 fan(s) - Backup function - Built-in FTP server - Buzzer - Cable lock slot - DHCP Client - DHCP server - Ethernet LAN