Ram and storage will be installed into hystou mini pc before shipment.
Memory we use Samsung DDR3L 1600MHz laptop ram, SSD use mSATA SSD, buyer can expand storage by adding other 2.5 inch laptop HDD in the future.
All mini pc can select this 2G ram and 128G SSD, to get best performance, suggest consider no less than 4G ram 64G SSD.
For operating system, our mini pc support all Windows and Linux OS, default OS we preinstall is OEM Windows 7 English version, Support multi-languages: Russian,Spanish,Portuguese,French,German,Arabic,Italian,Japanese,Turkish,Greek etc. Leave message if you have special requirement for OS.