Reminder: The product will self check and the memory will emit a beep when it is first turned on. Please note that it is not a memory fault and be patient for one minute. Support two storage: 2xNvme SSD+2x2.5''SATA SSD/HDD., 1xMini-PCIE wireless slot, support WiF connection. Support Wide voltage input 12-19V. Support 1xHD-MI+1xDP dual display output synchronously and asynchronously. 1xDDR5 Ram Slot Support Maximum 32GB DDR5 4800MHz(suggest to choose brand like samsung,kingston,Hynix etc. to avoid compatiable issue) , 1xMini-PCIE wireless slot, support Support Wide voltage input 12-19V. Support AES-NI, ESXI, Watchdog, Auto power on,PXE( if your bios version not support the function, please ask for us the bios file to update it) Full Aluminum Alloy color shell for heat dissipation, Exquisite production craft on outside design. Fanless system without cooling fan, fit for industrial grade field, work as long as 24 hours. Low consumption TDP only 15W and can be mounted back of monitor by VESA bracket(optional).