QSFP-DD (Double Density) ine mitsetse misere yemagetsi, ine data transmission rates inosvika 28Gbps NRZ kana 56Gbps PAM4, uye huwandu hwedata hunosvika ku200Gbps kana 400Gbps.QSFP-DD zvibatanidza uye magungano etambo anoenderana neIEEE 802.3bj, InfiniBand EDR uye SAS 3.0 zvakatemwa, saka zvakakodzerwa neakasiyana chizvarwa tekinoroji uye mashandisirwo.