2 x USB2.0 | 1 x HDMI 1.4a GbE Ports: 2 x GbE (RJ45) OS: QTS | File System: EXT4 | RAID Level: RAID 0

QNAP (HS-251+) – HS-251+ 2-Bay NAS | Intel Celeron J1900 2.0 GHz Quad Core (burst up to 2.41 GHz) RAM: 2GB DDR3L RAM | 512MB DOM Internal Storage: 2 x 3.5″/2.5″ SATA 3G | Hotswap External Ports: 2 x USB3.0, 2 x USB2.0 | 1 x HDMI 1.4a GbE Ports: 2 x GbE (RJ45) OS: QTS | File System: EXT4 | RAID Level: RAID 0, 1, JBOD Expansion Units: 1 x UX units Surveillance Station: 2 x IP Cam Licenses (up to 40) 2 Years Carry-In Warranty (Optional: Upgrade to 5 Years Carry-In / Onsite Warranty)