Ƙwaƙwalwar kumfa na Magnetic yana nufin nau'in ƙwaƙwalwar ajiyar kwamfuta wanda ke amfani da ƙananan yankuna na maganadisu, wanda aka sani da kumfa, don adana bayanan dijital. An ƙirƙiri kumfa ta hanyar yin amfani da filin maganadisu zuwa fim na bakin ciki na kayan maganadisu, yana haifar da shi don samar da yanayin yanki na maganadisu. Ana adana bayanai ta hanyar sanya kumfa a cikin wani tsari na musamman akan fim ɗin.An fara haɓaka ƙwaƙwalwar ajiyar kumfa na Magnetic a cikin 1970s a matsayin mai yuwuwar maye gurbin ƙwaƙwalwar ajiyar semiconductor, amma a ƙarshe wasu fasahohi kamar DRAM da DRAM sun maye gurbinsa. flash memory.