12 Bay TurboNaS / Intel Xeon D-1521 quad-core 2.4 Hz / 8GB UDIMM DDR4 (max 64GB) / 4-LAN, Built-in 2 10GB SFP+ RAID 0,1,5,6,10, 5+spare, 6 spare, 10+spare, global hot spare, max D-LAN PCle expansion slot x3, redundant power supply, With Rail kit A03-57