| CPU | 
			Marvell ARMADA 8040 ARMv8 Cortex-A72 quad-core 1.6 GHz processor | 
		
		
			| CPU Architecture | 
			64-bit ARM | 
		
		
			| Floating Point Unit | 
			  | 
		
		
			| Encryption Engine | 
			  | 
		
		
			| System Memory | 
			4 GB UDIMM DDR4 (1 x 4 GB) | 
		
		
			| Maximum Memory | 
			16 GB (1 x 16 GB) | 
		
		
			| Memory Slot | 
			1 x U-DIMM DDR4 | 
		
		
			| Flash Memory | 
			512 MB (Dual boot OS protection) | 
		
		
			| Drive Bay | 
			12 x 3.5-inch + 4 x 2.5-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 
			 
			2.5-inch bays: 
			2.5-inch SATA solid state drives | 
		
		
			| Hot-swappable | 
			
			 The following are not hot-swappable: M.2 SSDs, SSD cache drives, SSDs using PCIe expansion slots. 
			 | 
		
		
			| M.2 SSD Slot | 
			2 x M.2 2280 SATA SSD slots
			The M.2 SSD is not included as standard. 
			M.2 SSD operations can easily generate excessive heat. It is recommended to install a heatsink (from  QNAP or a third-party provider) on the M.2 SSD.  
			 | 
		
		
			| SSD Cache Acceleration Support | 
			  | 
		
		
			| Gigabit Ethernet Port (RJ45) | 
			2
			 Expandable with an optional PCIe adapter 
			 | 
		
		
			| 10 Gigabit Ethernet Port | 
			2 x 10GbE SFP+ | 
		
		
			| Jumbo Frame | 
			  | 
		
		
			| PCIe Slot | 
			2 
			Slot 1: PCIe Gen 3 x2 
			Slot 2: PCIe Gen 3 x1 | 
		
		
			| USB 3.2 Gen 1 port | 
			3 | 
		
		
			| USB 3.2 Gen 2 (10Gbps) Port | 
			Optional via a PCIe adapter | 
		
		
			| Audio Output | 
			1 x built-in speaker, 1 x 3.5mm line out jack (for amplifiers or speakers) | 
		
		
			| Form Factor | 
			Tower | 
		
		
			| LED Indicators | 
			Power/Status, LAN, USB, HDD1-12, SSD 1-4, M.2 SSD 1-2 | 
		
		
			| LCD Display/ Button | 
			  | 
		
		
			| Buttons | 
			Power, Reset, USB Auto Copy | 
		
		
			| Dimensions (HxWxD) | 
			303.84 × 369.89 × 319.8 mm | 
		
		
			| Weight (Net) | 
			12.06 kg | 
		
		
			| Operating temperature | 
			0 - 40 °C (32°F - 104°F) | 
		
		
			| Relative Humidity | 
			5-95% RH non-condensing, wet bulb: 27?C (80.6?F) | 
		
		
			| Power Supply Unit | 
			ATX 250W, Input: 100-240 Vac~, 50-60Hz, 3.5A | 
		
		
			| Power Consumption: HDD Sleep Mode | 
			39.74 W | 
		
		
			| Power Consumption: Operating Mode, Typical | 
			76.69 W
			 Tested fully populated with 1TB hard drives and 120GB solid-state drives. 
			 | 
		
		
			| Fan | 
			System fan: 3 x 92mm, 12VDC 
			CPU fan: 1 x 60mm, 12VDC | 
		
		
			| Sound Level | 
			23 db(A) | 
		
		
			| Other Interfaces | 
			Kensington security slot | 
		
		
			| System Warning | 
			Buzzer | 
		
		
			| Kensington Security Slot | 
			  | 
		
		
			| Max. Number of Concurrent Connections (CIFS) | 
			700 |