AnnapurnaLabs Alpine AL324 64-bit ARM Cortex-A57 quad-core 1.7GHz processor 4GB UDIMM DDR4 RAM (MAX 16GB) 12 X 3.5 #34; SATA 6Gb/s, 3Gb/s (Diskless) 2 X 2.5 Gigabit Ethernet Ports 2 X 10 Gigabit Ethernet SFP+ Ports 1 X PCIe Gen 2 x2 4 X USB 3.2 Gen 1 port 2U Rackmount