Device for storage of donated thrombocytes with a mixer is designed for full preservation of functional properties of donated thrombocytes under storage conditions in polymer containers with a fixed temperature of +22°С and continuous mixing (swinging) as per the "Technical Rules for Safety of Blood, its Products, Blood Substitutes and Technical Facilities Used for Transfusion and Infusion Therapy" approved by the Decree of the Russian Government No. 29 dated 26 January 2010, guidelines of the European Council and WHO concerning preparation, use and quality assurance of blood components.