QNAP TS-531X ARM-based NAS with Hardware Encryption, Quad Core 1.4GHz, 2GB RAM, 2 x 10GbE(SFP+) ,2 x 1GbE, ARM Cortex-A15 Dual Core 1.4GHz, 2GB DDR3 RAM (max 16GB), SATA 6Gb/s, 2 x 10GbE(SFP+), 2 x 1GbE, hardware encryption, Container Station, Surveillance Station, max 2 UX-800P/UX-500P expansion units