I-QSFP28 ihlanganisa amapheya ethusi ayisishiyagalombili ahlukene, ehlinzeka ngeziteshi ezine zokudluliswa kwedatha ngesivinini esifika ku-28Gbps ngesiteshi ngasinye, futhi ihlangabezana nezidingo ze-100G Ethernet, 25G Ethernet kanye ne-InfiniBand Enhanced Data Rate(EDR). Itholakala kugeji yocingo olubanzi kusuka ku-26AWG nge-30AWG-lo mhlangano wekhebula le-100G wethusi uhlanganisa ukulahlekelwa kokufakwa okuphansi kanye nenkulumo ephansi yesiphambano.