16GB DDR4 ECC RAM (max. 128GB), 4 x 2.5GbE, 2 x 10GBASE-T 10GbE, 2 x M.2 22110/2280 NVMe PCIe Gen3 x4 SSD slots for SSD cache, optional QNAP QXP-T32P 2-port Thunderbolt 3 card support, 3 x PCIe expansion slots (pre-installed 2-port 10GBASE-T card), integrated graphics, 4K HDMI v1.4b, USB 3.2 Gen2, 550W single power supply