QSFP-DD (Double Density) muaj yim-channel hluav taws xob sib cuam tshuam, nrog cov ntaub ntawv xa mus txog 28Gbps NRZ lossis 56Gbps PAM4, thiab tag nrho cov ntaub ntawv tus nqi mus txog 200Gbps lossis 400Gbps.QSFP-DD connectors thiab cable sib dhos ua raws li IEEE 802.3bj, InfiniBand EDR thiab SAS 3.0 specifications, yog li lawv tsim nyog rau ntau tiam tom ntej technologies thiab kev siv.