QSFP28 passive copper cable assembly imakhala ndi mawiri asanu ndi atatu amkuwa, omwe amapereka njira zinayi zotumizira ma data pa liwiro mpaka 28Gbps panjira, ndikukwaniritsa zofunikira za 100G Ethernet, 25G Ethernet ndi InfiniBand Enhanced Data Rate (EDR). kuchokera ku 26AWG kupyolera mu 30AWG-msonkhanowu wa 100G wamkuwa umakhala ndi kutayika kochepa komanso kuyankhula kochepa.