USB4 2.0 Phinda kabini isantya, ikamva lilapha
Njengoko abavelisi bebhodi ye-PC bephumeza40 Gbps USB4, abantu abanakukwazi ukuzibamba kodwa bayazibuza ukuba yintoni ekujoliswe kuyo elandelayo yalo mgangatho woxhulumaniso jikelele iya kuba yintoni? Ijika ibe yi-USB4 2.0, ebonelela80Gbpsi-bandwidth yedatha kwicala ngalinye kunye ne-60W yokunikezelwa kwamandla (PD) kwikhonkco. Ukunikezelwa kwamandla kwe-USB4 2.0 kunokufikelela kwi-240 W (48 V, 5 A). Bekusoloko kukho iinguqulelo ezininzi ze-USB, ezinokuchazwa njengezahlukeneyo. Nangona kunjalo, ngokudityaniswa ngokuthe ngcembe konxibelelwano, inani leenguqulelo ze-USB lehlile kakhulu. Ngexesha le-USB4, kuphela i-interface ye-USB-C eseleyo. Kutheni kusekho inguqulo ye-2.0? Inguqulelo enkulu yohlaziyo lwe-USB4 2.0 yinkxaso yayo yokudluliselwa kwedatha ukuya kuthi ga kwi-80 Gbps, igqithise ngokupheleleyo i-Thunderbolt 4 interface. Makhe sihlolisise iinkcukacha.
Ngaphambili, umgangatho we-USB4 1.0 wawuphuhliswe ngokusekwe kwitekhnoloji yeThunderbolt 3, enezinga eliphezulu lokudluliswa kwedatha.40 Gbps. Inguqulelo ye-2.0 yaphuhliswa ngokusekwe kuyilo olutsha lwesakhiwo somzimba, ukwandisa izinga lokudluliselwa kwedatha ukusuka kwincopho ye-40 Gbps ukuya kwi-80 Gbps, ukubeka isilingi entsha yokusebenza kwi-ecosystem ye-USB-C. Kufuneka kuqatshelwe ukuba ireyithi entsha ye-80 Gbps ifuna iintambo ezisebenzayo kwaye inokuxhaswa kuphela ngezinye iimveliso eziphezulu kwixesha elizayo. IUSB4 2.0Uyilo lwedatha luye lwahlaziywa. Ndiyabulela kwi-architecture entsha ye-physical layer esekelwe kwi-PAM3 ye-encoding mechanism kunye ne-80 Gbps yekhebula yedatha esebenzayo esandul 'ukuchazwa, izixhobo zingenza ukusetyenziswa okupheleleyo kunye nengqiqo kwi-bandwidth. Olu hlaziyo luchaphazela ngakumbiI-USB 3.2, Ukuhanjiswa kwevidiyo yeDisplayPort, kunye neetshaneli zedatha yePCI Express. Ngaphambili, ubungakanani bokudluliselwa kwe-USB 3.2 yayiyi-20 Gbps (USB3.2 Gen2x2). Ngaphantsi koyilo olutsha lwedatha, izinga le-USB 3.2 liya kudlula i-20 Gbps kwaye lifikelele kwinkcazo ephezulu.
Ngokuhambelana nokuhambelana, i-USB4 2.0 iya kubuyela ngasemva ihambelana ne-USB4 1.0, i-USB 3.2, kunye ne-Thunderbolt 3, ngoko akukho mfuneko yakukhathazeka ngemibandela yokuhambelana. Ukongeza, ukonwabela ukuhanjiswa kwedatha ye-80Gbps, i-brand entsha esebenzayo kwaye esebenzayoI-USB-C ukuya kwi-USB-Cintambo yedatha iyafuneka ukufezekisa esi santya. I-Passive kunye ne-inductive ye-USB-C kwiintambo zedatha ye-USB-C isenomthamo omkhulu we-bandwidth ye-40Gbps. Ukucacisa kakuhle iindidi zangoku ze-USB, i-interface ye-USB iqalile ukuhlanganiswa ngokuyibiza ngokusekwe kwi-bandwidth yokudlulisa. Umzekelo, i-USB4 v2.0 ihambelana ne-USB 80Gbps, i-USB4 ihambelana nayoUSB 40Gbps, USB 3.2 Gen2x2ihambelana ne-20Gbps, i-USB 3.2 Gen2 ihambelana nayoI-USB 10Gbps, kwayeUSB 3.2 Gen1ihambelana ne-USB 5Gbps, njl. Iilebhile zokupakisha, iileyibhile ze-interface, kunye neelebhile zekhebula zedatha zingabonwa kulo mfanekiso ulandelayo.
Ngo-Okthobha ka-2022, i-USB-IF yayisele ikhuphe i-USB4 inguqulo ye-2.0, enokufikelela ekusebenzeni kothumelo lwe-80 Gbps. EzinxulumeneyoUSB Type-CkwayeUnikezelo lwaMandla e-USB (USB PD)iinkcukacha nazo zihlaziyiwe. Ngaphantsi kwe-USB4 inguqulo ye-2.0 yokucaciswa, i-interface ye-USB Type-C yesignali nayo inokulungiswa ngokulinganayo, inikezela ngesantya esiphezulu ukuya kwi-120 Gbps kwicala elinye ngelixa igcina isantya se-40 Gbps kwelinye icala. Okwangoku, iimonitha ezininzi ze-4K eziphezulu zikhetha ukuxhasa uqhagamshelo lomgca omnye we-USB-C kwiilaptop. Emva kokuqaliswa kwe-80 Gbps USB4 2.0 isisombululo, ezinye4K 144Hziimonitha okanye i-6K, iimonitha ze-8K zinokuqhagamshela ngokulula kwiilaptops nge-USB-C. I-interface ye-80 Gbps ye-USB igcina i-USB Type-C port ukuqinisekisa ukuhambelana ne-USB 4 Version 1.0 ekhoyo, i-USB 3.2, i-USB 2.0 kunye ne-Thunderbolt 3. Ukongezelela, "i-80 Gbps USB Type-C Cable Data" ekhutshwe ekupheleni kwalo nyaka ixhasa i-speed version epheleleyo ye-80 Gbps ye-40W ye-20W ixhasa kwakhona i-80 Gbps ye-40W (USB PD EPR). Iilaptops zesizukulwana esitsha ekulindeleke ukuba zimiselwe ekupheleni kwalo nyaka okanye kunyaka ozayo kulindeleke ukuba ziqalise ukuxhasa i-80 Gbps ye-USB. Kwelinye icala, iiPC ezidlala ngamandla aphezulu kunye nabahloli baya kukwazi ukusebenzisa ngcono ukusebenza kwekhadi lemizobo; kwelinye icala, i-PCIe eqinileyo yangaphandle inokubaleka ukuya kumthamo opheleleyo.
Ixesha lokuposa: Sep-19-2025
