The ready-to-use purification kit can easily handle and extract high quality nucleic acids. Full automation of the nucleic acid extraction that is based on proven magnetic particle separations. Preparation of up to 96 different samples working in parallel with preprogrammed extraction of protocols for optimal reproducibility and adjustable elution volumes. The reagent plastic ware filled up automatically with all the necessary solutions of minimum number manual steps. The tight desktop devices for any lab bench. They offer optimized lysis by usage of an integrateable thermal shaker. The tight desktop devices are suitable for any size lab bench.