CPU Marvell ARMADA 8040 ARMv8 Cortex-A72 quad-core 1.6 GHz processor Architecture: 64-bit Encryption Engine: Yes System Memory 8 GB DDR4 (1 x 8 GB) Maximum Memory 16 GB (1 x 16 GB) Memory Slot 1 x DDR4 Long-DIMM slot Drive Bay 12 x 3.5-inch SATA 6 Gbps bays 4 x 2.5-inch SATA 6 Gbps bays, max 9.5mm drive height 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 hard disk drives 2.5-inch SATA solid state drives M.2 SSD Slot 2 x M.2 SATA 6 Gbps SSD slots (2280 form factor) Note: 1. The M.2 SSD is not included as standard. 2. 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 3.5-inch bays 1 to 8 2.5-inch bays 1 to 4 M.2 SATA SSD slots 1 to 2 Optional: SSDs on an optional QM2 PCIe expansion card 10 Gigabit Ethernet Port 2 x 10GbE SFP+ Gigabit Ethernet Port 2 x RJ45 USB Port 3 x USB 3.1 Gen 1 Type-A Front: 1 (Note: It comes with the One-Touch Copy button) Back:2 PCIe Slot Slot 1: 3.0 x 2 Slot 2: 3.0 x 1 USB One Touch Copy Front: USB 3.1 Gen 1 Type-A Audio 1 x 3.5 mm line-out jack Speaker Alarm buzzer Note: You cannot use the speaker and the line-out jack simultaneously Form Factor Desktop Power Supply Unit 250 W, 100 - 240V AC, 50/60 Hz Power Consumption (W) HDD sleep: 39.74 W In Operation: 76.69 W (with 12 x 1 TB HDDs and 4 x 120 GB SSDs) Fan System: 3 x 9.2 cm fan (12V DC) CPU: 1 x 6 cm fan (12V DC)