Method, system and device for automated NGS library preparation

A device for performing automated library preparation for next-generation sequencing, comprising:

• a) a housing body;
• b) at least one integrated reactor disposed inside the housing body, wherein the integrated reactor comprises more than one module wherein a module comprises at least one chamber for receiving solutions and magnetic beads, wherein adjacent chambers are separated by a chamber wall, wherein there is an opening at the apex of the chamber wall for allowing magnetic beads to pass through, wherein a chamber can be connected to at least one multi-functional helper (MFH) element;
• c) a robotic hand for operating the MFH element;
• and
• d) a magnet for moving the magnetic beads from one chamber to another chamber.