QNAP High-performance Quad-core NAS with Dual 10GbE SFP+ Ports - AMD R-Series RX-421ND Quad-core (4 Core) 2.10 GHz - 16 x HDD Supported - 16 x SSD Supported - 8 GB RAM DDR4 SDRAM - Serial ATA/600 Controller - RAID Supported 0, 1, 5, 6, 10, 5+Spare, 6+Spare, 10+Spare, JBOD - 16 x Total Bays - 16 x 2.5"/3.5" Bay - 2 x Total Slot(s) - 10 Gigabit Ethernet - 6 USB Port(s) - 4 USB 2.0 Port(s) - 2 USB 3.0 Port(s) - Network (RJ-45) - QTS 4.3 - DNS, Telnet, DLNA, AFP 3.3, IPv6, FTPS, WEBDAV, SSL/TLS