QNAP TS-669 Pro. Processor family: Intel Atom, Processor clock speed: 2.13 GHz. RAID levels: 0, 1, 5, 6, 10, JBOD, Hard drive interface: Serial ATA, Supported file systems: ext3, ext4, FAT32, HFS+, NTFS. Internal memory: 1 GB, Internal memory type: DDR3, Flash memory: 512 MB. Compliance industry standards: IEEE 802.3, 802.3u, 802.3ab, Cabling technology: 10/100/1000Base-T(X). Operating system installed: Linux