Warranty3 years bios 2 x 64 mbit flash use of licensed ami uefi bios support for dualbios pnp 10a dmi 27 wfm 20 sm bios 27 acpi 50 chipsetintel b250 cpu interfacesocket 1151 ram technologyddr4 dual channel ram slots4 x 288 pin ram speeds ddr4 2133 ddr4 2400 oc max memory support64gb pci express 30 x161 pci express 30 x12 s ata iii ports6 m2 sockets1 lan speed101001000 on board lanrealtek on board audiorealtek alc887 on board videointel processor with integrated graphics is required back