QNAP 4-Bay M.2 SSD NASbook with Built-in 4 Port LAN Switch, 4GB Version (TBS-453A-4G-US) Intel Celeron N3150 Quad Core 1.6GHz (up to 2.08GHz), 4GB DDR3L RAM (max 8GB), 1 x GbE LAN, 4-port GbE switch, RM-IR002 remote included Built-in 4-port LAN switch, combined with advanced virtual switch functionality for maximized network flexibility ; Dual HDMI output with duplicated and extended desktop options Use the TBS-453A as a PC with exclusive QvPC Technology and 4K (H.264) support ; Supports Linux OS with direct output via HDMI Store, backup, and share files with snapshots and versioning ; Wide range 10V ~ 20V DC power input Expand the total raw storage capacity with a UX-800P/UX-500P expansion enclosure ; Build a karaoke system with the OceanKTV app