8-Bay NAS, Intel Celeron Apollo Lake J3455 quad-core 1.5GHz (up to 2.3GHz), 4GB DDR3L SODIMM RAM ( 2x2GB, max 8GB total), SATA 6Gb/s, 4xGbE, PCIe slot for 10GbE or 2 more GbE, AES-NI encryption, 4K hardware transcoding, dual 4K HDMI v1.4b, 4 x USB 3.0, virtualization, Surveillance Station (free 4, max 40 ch.), max 1 UX-800P/UX-500P expansion uni, redundant power 250W