__________ _ ___ ______ _ 1x slots __________ _ _______________ _______ __ ___________ _______. _______ _ ___________ _________ ___________ ________, ______ ________ __________ ______. _______ ______ _ ________ _ __________ ________ __________ ______ _________ __ _____ __________ _ _______ ___ _