I-USB4 2.0 Ijubane Eliphindwe Kabili, Ikusasa Lifikile
Njengoba abakhiqizi bebhodi lomama le-PC besebenzisaI-USB4 engu-40 Gbps, abantu abakwazi ukuzibamba kodwa bazibuze ukuthi inhloso elandelayo yale standard yokuxhumana yendawo yonke izoba yini? Kuvele ukuthi yi-USB4 2.0, enikeza80 Gbpsi-bandwidth yedatha kuzo zonke izinhlangothi kanye nokulethwa kwamandla angu-60W (PD) kwesixhumi. Ukulethwa kwamandla kwe-USB4 2.0 kungafinyelela ku-240 W (48 V, 5 A). Bekulokhu kunezinguqulo eziningi ze-USB, ezingachazwa njengezihlukahlukene. Kodwa-ke, ngokuhlanganiswa kancane kancane kwezixhumi, inani lezinguqulo ze-USB lehle kakhulu. Ngesikhathi se-USB4, kusele isixhumi se-USB-C kuphela. Kungani kusenenguqulo engu-2.0? Isibuyekezo senguqulo esikhulu kunazo zonke se-USB4 2.0 ukusekela kwayo izinga lokudluliswa kwedatha elifika ku-80 Gbps, lidlula ngokuphelele isixhumi se-Thunderbolt 4. Ake sihlole imininingwane.
Ngaphambilini, indinganiso ye-USB4 1.0 yathuthukiswa ngokusekelwe kubuchwepheshe be-Thunderbolt 3, ngesilinganiso esiphezulu sokudluliswa kwedatha esingu-40 GbpsInguqulo engu-2.0 yathuthukiswa ngokusekelwe kusakhiwo esisha sezendlalelo ezibonakalayo, okwandisa izinga lokudluliswa kwedatha kusuka esicongweni esingu-40 Gbps kuya ku-80 Gbps, okubeka umkhawulo omusha wokusebenza kwe-ecosystem ye-USB-C. Kufanele kuqashelwe ukuthi izinga elisha le-80 Gbps lidinga izintambo ezisebenzayo futhi lingasekelwa kuphela eminye imikhiqizo ephezulu esikhathini esizayo.I-USB4 2.0ukwakheka kwedatha nakho kubuyekeziwe. Ngenxa yokwakheka okusha kwengqimba ebonakalayo okusekelwe kundlela yokufaka ikhodi yesignali ye-PAM3 kanye nekhebula ledatha elisebenzayo elisanda kuchazwa elingu-80 Gbps, amadivayisi angasebenzisa ngokugcwele nangokufanele i-bandwidth. Lokhu kubuyekezwa kuthinta kakhuluI-USB 3.2, ukudluliswa kwevidiyo ye-DisplayPort, kanye neziteshi zedatha ze-PCI Express. Ngaphambilini, izinga eliphezulu lokudluliswa kwe-USB 3.2 lalingu-20 Gbps (I-USB3.2 Gen2x2)Ngaphansi kokwakhiwa kwedatha okusha, izinga le-USB 3.2 lizodlula i-20 Gbps futhi lifinyelele ekucacisweni okuphezulu.
Ngokuphathelene nokuhambisana, i-USB4 2.0 izohambisana ne-USB4 1.0, i-USB 3.2, kanye ne-Thunderbolt 3, ngakho-ke asikho isidingo sokukhathazeka ngezinkinga zokuhambisana. Ngaphezu kwalokho, ukuze ujabulele izinga lokudluliswa kwedatha elingu-80Gbps, i-USB4 2.0 entsha esebenzayo nesebenzayo izohambisana ne-USB4 1.0, i-USB 3.2, kanye ne-Thunderbolt 3.I-USB-C kuya ku-USB-Cikhebula ledatha liyadingeka ukuze kufezwe leli jubane. Izintambo zedatha ze-USB-C kuya ku-USB-C ezingasebenzi nezingenayo i-induction zisenomkhawulokudonsa ophezulu ongu-40Gbps. Ukuze kucaciswe kangcono izigaba zamanje ze-USB, isixhumi esibonakalayo se-USB sesiqalile ukuhlanganiswa ngokusiqamba igama ngokusekelwe kumkhawulokudonsa wokudlulisa. Isibonelo, i-USB4 v2.0 ihambelana ne-USB 80Gbps, i-USB4 ihambelana neI-USB 40Gbps, i-USB 3.2 Gen2x2ihambisana ne-20Gbps, i-USB 3.2 Gen2 ihambisana ne-I-USB 10Gbps, futhiI-USB 3.2 Gen1ihambisana ne-USB 5Gbps, njll. Amalebula okupakisha, amalebula esibonakalayo, kanye namalebula ekhebula ledatha angabonakala esithombeni esilandelayo.
Ngo-Okthoba 2022, i-USB-IF yayisivele ikhiphe imininingwane ye-USB4 version 2.0, engafinyelela ukusebenza kokudlulisela okungu-80 Gbps.Uhlobo C lwe-USBfuthiUkulethwa Kwamandla e-USB (i-USB PD)imininingwane nayo ibuyekeziwe. Ngaphansi kwencazelo ye-USB4 version 2.0, isikhombimsebenzisi sesiginali se-USB Type-C singalungiswa ngokungalingani, sinikeze isivinini esiphezulu esifinyelela ku-120 Gbps ohlangothini olulodwa ngenkathi sigcina isivinini esingu-40 Gbps kolunye uhlangothi. Njengamanje, amamonitha amaningi aphezulu e-4K akhetha ukusekela uxhumano lwe-USB-C olulodwa lwama-laptop. Ngemva kokwethulwa kwesisombululo se-USB4 2.0 esingu-80 Gbps, amanye4K 144HzAma-monitor noma ama-monitor angu-6K, 8K angaxhuma kalula kuma-laptops nge-USB-C. I-interface ye-USB engu-80 Gbps igcina i-port ye-USB Type-C ukuqinisekisa ukuhambisana ne-USB 4 Version 1.0 ekhona, i-USB 3.2, i-USB 2.0 kanye ne-Thunderbolt 3. Ngaphezu kwalokho, i-"80 Gbps USB Type-C Data Cable" ekhishwe ekupheleni kwalo nyaka isekela inguqulo yesivinini esigcwele yesilinganiso se-80 Gbps ngenkathi isekela namandla okushaja angu-240W 48V/5A (USB PD EPR). Ama-laptop esizukulwane esisha okulindeleke ukuthi aqalwe ekupheleni kwalo nyaka noma ngonyaka ozayo kulindeleke ukuthi aqale ukusekela i-USB 80 Gbps. Ngakolunye uhlangothi, ama-PC emidlalo enamandla amakhulu kanye nama-monitor azokwazi ukusebenzisa kangcono ukusebenza kwekhadi lehluzo; ngakolunye uhlangothi, i-PCIe yangaphandle eqinile nayo ingasebenza ngokugcwele.
Isikhathi sokuthunyelwe: Septhemba-19-2025
