This device was upgraded to 16GB memory from the base 8GB.From the manufacturer:The TS-963X is an affordable NAS for small and medium-sized businesses (SMBs) with AMD Embedded G-Series GX-420MC quad-core 2.0 GHz processor, 9 drive bays and a built-in 5-speed 10GBASE-T port for up to 10Gb connectivity. Four 2.5-inch drive bays can be used to install SSDs to enable caching and Qtier technology. One built-in 5-speed 10GBASE-T port (10G/5G/2.5G/1G/100M) also increases productivity of businesses with existing Cat 5e/6 cables, without extra costs or additional installation procedures. Combined with several QNAP technologies including VJBOD, Container Station, and Virtualization Station, the TS-963X has the potential to empower a wide range of business applications and can also be easily expanded to fit future data storage requirements.CPU AMD G-Series GX-420MC 4-core 2.0 GHz processorCPU Architecture 64-bit x86Encryption Engine (AES-NI)System Memory 2 GB SODIMM DDR3/DDR3LMaximum Memory 16GB (2 x 8GB)Memory Slot 2 x SODIMM DDR3LDrive Bay 5 x 3.5-inch + 4 x 2.5-inch SATA 6Gb/s, 3Gb/sDrive Compatibility 3.5-inch bays:3.5-inch SATA hard disk drives2.5-inch SATA hard disk drives2.5-inch SATA solid state drives2.5-inch bays:2.5-inch SATA hard disk drives2.5-inch SATA solid state drivesHot-swappable SSD Cache Acceleration Support Gigabit Ethernet Port (RJ45) 110 Gigabit Ethernet Port 1 x 10GBASE-T (10G/5G/2.5G/1G/100M)Please use Cat 6a or Cat 7 LAN cables (sold separately) to achieve 10GbE speed over longer distance.Wake on LAN (WOL) Jumbo Frame USB 2.0 port 2USB 3.2 Gen 1 port 2Audio Output 1 x built-in speaker, 1 x 3.5mm line out jack (for amplifier or headphone amplifier)Form Factor TowerLED Indicators Power/Status, LAN, USB, HDD1-5, SSD1-4Buttons Power, One Touch Copy, ResetDimensions (HxWxD) 7.19 × 8.85 × 8.8 inchWeight (Net) 7.78 lbsOperating 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 120W 100-240V AC adapterPower Consumption: Disk Standby Mode 35.64 WPower Consumption: Operating Mode, Typical 53.06 WWith 5 x HDD + 4 x SSD fully populatedFan 1 x 14cm smart fan (12V DC)