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 (5051868030871 / TS-431X-8G/32TB-REDPRO) - Cloud,iSCSI LUN - Kensington - AC,LAN (RJ-45) - Tower - Active - Small & Medium Business - SFP+ - HDD - DDR3 - External - Serial ATA III - HDD,SSD - NAS
QNAP (5051868076473 / TS-431X2-2G/24TB-IW) - Cloud,iSCSI LUN - Kensington - AC,LAN (RJ-45) - Home & Home Office - SFP+ - HDD - DDR3 - External - Annapurna Labs - Alpine AL-314 - Serial ATA III - Serial ATA II,Serial ATA III