QNAP TS-419U+ 4TB. Total storage capacity: 4000 GB, RAID levels: 0, 1, 5, 6, JBOD, Hard drive interface: Serial ATA, Serial ATA II. Memory type: DDR3, Internal memory: 512 MB. Processor model: Marvell 6282, Processor clock speed: 1600 MHz. Networking features: Gigabit Ethernet, Cabling technology: 10/100/1000BASE-T(X), Data transfer rate (max): 1000 Mbit/s. Security algorithms supported: SSH, SSL/TLS, HTTPS