I-Fast Ethernet (FE) igama le-Ethernet kunethiwekhi yekhompyutha, ehlinzeka ngezinga lokudlulisa elingu-100Mbps. Izinga le-IEEE 802.3u 100BASE-T Fast Ethernet yethulwa ngokusemthethweni yi-IEEE ngo-1995, futhi izinga lokudluliswa kwe-Ethernet esheshayo ngaphambili lalingu-10Mbps. Izinga le-Fast Ethernet lihlanganisa izigaba ezingaphansi ezintathu: 100BASE-FX, 100BASE-TX, kanye ne-100BASE-T4. I-100 ikhombisa izinga lokudlulisela lika-100Mbit/s. "BASE" kusho ukudluliswa kwe-baseband; Uhlamvu olulandela udeshi lubhekisela endaweni yokudlulisela ephethe isignali, "T" imele ipheya esontekile (ithusi), "F" imele i-optical fiber; Uhlamvu lokugcina (uhlamvu "X", inombolo "4", njll.) lubhekisela endleleni yekhodi yomugqa esetshenzisiwe. Ithebula elilandelayo libonisa izinhlobo ze-Ethernet ezisheshayo ezivamile.
Uma kuqhathaniswa ne-Ethernet esheshayo, i-Gigabit Ethernet (GE) inganikeza izinga lokudlulisa elingu-1000Mbps kunethiwekhi yekhompyutha. Izinga le-Gigabit Ethernet (elaziwa ngokuthi yi-IEEE 802.3ab standard) lashicilelwa ngokusemthethweni yi-IEEE ngo-1999, eminyakeni embalwa nje ngemva kokuvela kwezinga le-Fast Ethernet, kodwa alizange lisetshenziswe kabanzi kwaze kwaba ngu-2010. I-Gigabit Ethernet isebenzisa ifomethi yohlaka. ye-IEEE 803.2 Ethernet kanye nendlela yokulawula ukufinyelela kwemidiya ye-CSMA/CD, engasebenza ngemodi eyi-duplex enguhhafu kanye ne-duplex egcwele. I-Gigabit Ethernet inezintambo namadivayisi afanayo ku-Fast Ethernet, kodwa iguquguquka kakhulu futhi iyonga. Ngokuthuthukiswa okuqhubekayo kwe-Gigabit Ethernet, izinguqulo ezithuthuke kakhulu ziye zavela, njenge-40G Ethernet ne-100G Ethernet. I-Gigabit Ethernet inamazinga ahlukene wesendlalelo somzimba, njenge-1000BASE-X, 1000BASE-T, kanye ne-1000BASE-CX.
