I-USB4 2.0 Phinda kabili Ijubane, Ikusasa Lilapha
Njengoba abakhiqizi be-PC motherboard besebenzisa40 Gbps USB4, abantu abakwazi ukuzibamba kodwa bayazibuza ukuthi izoba yini impokophelo elandelayo yaleli zinga lokuxhumana kwendawo yonke? Kuvele ukuthi yi-USB4 2.0, ehlinzeka80 gbpsumkhawulokudonsa wedatha ohlangothini ngalunye kanye nokulethwa kwamandla okungu-60W (PD) kwesixhumi. Ukulethwa kwamandla kwe-USB4 2.0 kungafinyelela ku-240 W (48 V, 5 A). Sekuhlale kunezinguqulo eziningi ze-USB, ezingachazwa njengezinhlobonhlobo. Nokho, ngokuhlanganiswa kancane kancane kwezindawo zokusebenzelana, inani lezinguqulo ze-USB lehle kakhulu. Ngesikhathi se-USB4, kusele kuphela isixhumi esibonakalayo se-USB-C. Kungani kusenenguqulo engu-2.0? Inguqulo enkulu yokubuyekezwa kwe-USB4 2.0 ukusekela kwayo izinga lokudluliswa kwedatha elifika ku-80 Gbps, elidlula ngokuphelele isixhumi esibonakalayo se-Thunderbolt 4. Ake singene emininingwaneni.
Ngaphambilini, izinga le-USB4 1.0 lathuthukiswa ngokusekelwe kubuchwepheshe be-Thunderbolt 3, ngezinga eliphezulu lokudluliswa kwedatha40 Gbps. Inguqulo engu-2.0 yathuthukiswa ngokusekelwe ekwakhiweni kongqimba olusha lomzimba, okwandisa izinga lokudluliswa kwedatha ukusuka ku-40 Gbps ukuya ku-80 Gbps, okusetha uphahla olusha lokusebenza ku-ecosystem ye-USB-C. Kufanele kuqashelwe ukuthi isilinganiso esisha esingu-80 Gbps sidinga amakhebuli asebenzayo futhi singase sisekelwe imikhiqizo ethile ephezulu esikhathini esizayo. II-USB4 2.0ukwakheka kwedatha nakho kubuyekeziwe. Ngenxa yesakhiwo esisha sesendlalelo esibonakalayo esisekelwe endleleni yombhalo wekhodi yesignali ye-PAM3 kanye nekhebula yedatha esebenzayo engu-80 Gbps esanda kuchazwa, amadivayisi angakwazi ukusebenzisa ngokugcwele futhi okunengqondo umkhawulokudonsa. Lesi sibuyekezo sithinta futhiI-USB 3.2, Ukudluliswa kwevidiyo ye-DisplayPort, namashaneli edatha we-PCI Express. Ngaphambilini, izinga lokudlulisa eliphezulu le-USB 3.2 lalingu-20 Gbps (USB3.2 Gen2x2). Ngaphansi kokwakhiwa kwedatha entsha, izinga le-USB 3.2 lizodlula u-20 Gbps futhi lifinyelele ekucacisweni okuphezulu.
Mayelana nokuhambisana, i-USB4 2.0 izobuyela emuva ihambisane ne-USB4 1.0, USB 3.2, kanye ne-Thunderbolt 3, ngakho-ke asikho isidingo sokukhathazeka ngezinkinga zokuhambisana. Ukwengeza, ukuze ujabulele izinga lokudluliswa kwedatha elingu-80Gbps, entsha sha esebenzayo futhi esebenzayoI-USB-C kuya ku-USB-Cikhebula ledatha liyadingeka ukuze kuzuzwe lesi sivinini. Izintambo zedatha ye-USB-C engenzi lutho futhi eguquguqukayo iye ku-USB-C isenomkhawulokudonsa omkhulu ongu-40Gbps. Ukuze ucacise kangcono izigaba zamanje ze-USB, isixhumi esibonakalayo se-USB sesiqale ukuhlanganiswa ngokusiqamba ngokusekelwe kumkhawulokudonsa wokudlulisa. Isibonelo, i-USB4 v2.0 ihambisana ne-USB 80Gbps, i-USB4 ihambisana nayoI-USB 40Gbps, i-USB 3.2 Gen2x2ihambisana ne-20Gbps, i-USB 3.2 Gen2 ihambisana nayoI-USB 10Gbps, futhiI-USB 3.2 Gen1ihambisana ne-USB 5Gbps, njll. Amalebula okupakisha, amalebula esixhumi esibonakalayo, namalebula ekhebula ledatha angabonakala esithombeni esilandelayo.
Ngo-Okthoba 2022, i-USB-IF yayisivele ikhiphe imininingwane ye-USB4 yenguqulo 2.0, engafinyelela ukusebenza kokudlulisela okungu-80 Gbps. OkuhlobeneI-USB Type-CfuthiI-USB Power Delivery (USB PD)imininingwane nayo ibuyekeziwe. Ngaphansi kokucaciswa kwenguqulo 2.0 ye-USB4, isixhumi esibonakalayo se-USB Type-C singalungiswa ngendlela engafani, sinikeze isivinini esikhulu esingafika ku-120 Gbps ohlangothini olulodwa kuyilapho kugcinwa isivinini esingu-40 Gbps ngakolunye uhlangothi. Okwamanje, amamonitha amaningi e-4K aphezulu akhetha ukusekela uxhumano lomugqa owodwa we-USB-C kumakhompyutha aphathekayo. Ngemuva kokwethulwa kwesisombululo se-80 Gbps USB4 2.0, ezinye4K 144Hzamamonitha noma i-6K, 8K monitors ingaxhumeka kalula kumakhompyutha aphathekayo nge-USB-C. I-80 Gbps USB interface igcina imbobo ye-USB Type-C ukuze kuqinisekiswe ukuhambisana ne-USB 4 Version 1.0, i-USB 3.2, i-USB 2.0 ne-Thunderbolt 3 ekhona kakade. Ngokwengeziwe, "80 Gbps USB Type-C Data Cable" ekhishwe ekupheleni kwalo nyaka isekela inguqulo yesivinini esigcwele sama-80 Gbps/40W amandla futhi isekela izinga le-80 Gbps/50W. (I-USB PD EPR). Amalaptop esizukulwane esisha okulindeleke ukuthi ethulwe ekupheleni kwalo nyaka noma ngonyaka ozayo kulindeleke ukuthi aqale ukusekela i-USB 80 Gbps. Ngakolunye uhlangothi, ama-PC wokudlala anamandla amakhulu nabaqaphi bazokwazi ukusebenzisa kangcono ukusebenza kwekhadi lezithombe; ngakolunye uhlangothi, i-PCIe yesimo esiqinile yangaphandle nayo ingagijima ifinyelele umthamo ogcwele.
Isikhathi sokuthumela: Sep-19-2025
