QSFP-DD (Double Density) ili ndi njira zisanu ndi zitatu zolumikizira magetsi, ndi maulendo otumizira deta mpaka 28Gbps NRZ kapena 56Gbps PAM4, ndi chiwerengero cha deta mpaka 200Gbps kapena 400Gbps.Zolumikizira za QSFP-DD ndi magulu a chingwe zimagwirizana ndi IEEE 802.3bj, InfiniBand EDR ndi SAS 3.0, motero ndizoyenera matekinoloje osiyanasiyana am'badwo wotsatira.