ðə nˈʌmbɚɹ ʌv kəmpˈæɾᵻbəl mˈɛmɚɹi kˈɑːɹdz vˈɛɹiz fɹʌm ɹˈiːdɚ tə ɹˈiːdɚ ænd kæn ɪŋklˈuːd mˈoːɹ ðɐn twˈɛnti dˈɪfɹənt tˈaɪps.
The number of compatible memory cards varies from reader to reader and can include more than 20 different types.