4-Bay 10GbE & Thunderbolt 3 NAS with dual M.2 2280 SATA SSD slots, Intel Celeron Apollo Lake J3455 quad-core 1.5GHz (up to 2.3GHz), 8GB DDR3L SODIMM RAM ( 2x4GB, max 8GB total), SATA 6Gb/s, 2x GbE, 1x 10GbE, 2x Thunderbolt 3, 4K hardware transcoding, 2x 4K HDMI v1.4b, OLED display + touch buttons, USB 3.0, virtualization, Surveillance Station (free 4, max 40 ch.), max 1 UX-800P/UX-500P expansion unit, speaker, 2x 3.5mmMIC In, 1x Line out