TS-433-4G CPU ARM 4-core Cortex-A55 2.0GHz processor CPU Architecture 64-bit ARM Floating Point Unit yes Encryption Engine yes  System Memory 4 GB on board (non-expandable) Note: Reserves some RAM for use as shared graphics memory. Maximum Memory 4 GB on board (non-expandable) Flash Memory 4 GB (Dual boot OS protection) Drive Bay 4x 3.5-inch SATA 6Gb/s 3Gb/s Drive Compatibility 3.5-inch bays: 3.5-inch SATA hard disk drives 2.5-inch SATA hard disk drives 2.5-inch SATA solid state drives Hot-swappable yes Gigabit Ethernet Port (RJ45) 1 2.5 Gigabit Ethernet Port (2.5G/1G/100M) 1 (2.5G/1G/100M) Wake on LAN (WOL) yes Jumbo Frame yes USB 2.0 port 2 USB 3.2 Gen 1 port 1 Form Factor Tower LED Indicators System Status LAN USB HDD1~4 Buttons Power Reset USB Copy Dimensions (HxWxD) 169 × 160 × 219 mm Weight (Net) 2.07 kg Weight (Gross) 3.5 kg Operating Temperature 0 - 40 °C (32°F - 104°F) Storage Temperature -20 - 70°C (-4°F - 158°F) Relative Humidity 5-95% RH non-condensing wet bulb: 27˚C (80.6˚F) Power Supply Unit 90W adapter (12VDC) 100-240VAC Power Consumption: HDD Sleep Mode 8.45 W Power Consumption: Operating Mode Typical 22.54 W Tested with drives fully populated. Fan 1 x 120mm 12VDC System Warning Buzzer Kensington Security Slot yes Standard Warranty 2 Max. Number of Concurrent Connections (CIFS) - with Max. Memory 200