bundled one 2.5" tray base for installing 2.5" HDD/SSD | Hotswap External Ports: 2 x USB3.0

QNAP (TS-328) – TS-328 3-Bay NAS | Realtek RTD1296 1.4 GHz Quad Core RAM: 2GB DDR4 RAM | 4GB eMMC Internal Storage: 3 x 3.5″ SATA 6G, bundled one 2.5″ tray base for installing 2.5″ HDD/SSD | Hotswap External Ports: 2 x USB3.0, 1 x USB2.0, One Touch Copy Button GbE Ports: 2 x GbE (RJ45) OS: QTS | File System: EXT4 | RAID Level: RAID 0, 1, 5, JBOD Surveillance Station: 4 x IP Cam Licenses (up to 16) 2 Years Carry-In Warranty (Optional: Upgrade to 5 Years Carry-In / Onsite Warranty)