Lub sijhawm ntawm kev sib kis ceev tau los - USB 4.0

Taw qhia

Xyoo 1994, Intel thiab Microsoft tau pib lub koom haum International Standardization, hu ua "USB-IF". Lub koom haum tsim ib tug series ntawm specifications thiab specifications rau ib tug universal serial tsheb npav. Ntawm lawv, tus qauv tsim nyob ib ncig ntawm tus nqi ceev yog qhov paub zoo USB PD raws tu qauv, uas tam sim no yog ib qho ntawm cov kev siv ntau tshaj plaws rau pej xeem them cov cai, thiab cov ntaub ntawv tshawb fawb txog kev lag luam ntawm PD 3.1 tau raug tso tawm ua ntej lub taub hau them. network tau tshaj tawm cov ntawv ntev, ib tus tuaj yeem nkag siab tag nrho kev lag luam saw ntawm PD 3.1.

Tsis tas li ntawd, USB-IF tau tsim tus qauv rau kev xa cov ntaub ntawv, thiab ncaj qha hu ua USB #.0, tom qab hloov pauv tam sim no, qhov tseeb tshwj xeeb ntawm USB yog USB4, tsab xov xwm no yuav delve rau hauv USB4 txij li thaum nws tso tawm, hauv khw. tsim kom muaj kev lag luam ecology.

Hais txog USB4

USB cov ntaub ntawv hloov chaw raws tu qauv tau tso tawm ntau dua li USB PD, thiab USB1.0 tau qhia hauv xyoo 1996, peb xyoos tom qab USB-IF tau tsim. Thawj tiam ntawm USB tus qauv, nws tus nqi sib kis tsuas yog 1.5Mbps, cov ntsiab lus ntawm kev txhim kho ntawm USB keeb kwm versions thov saib cov lus hauv qab no:

Thaum lub Cuaj Hlis 2019, USB4 tau raug tso tawm nrog qhov siab tshaj plaws ntawm 40Gbps, ib yam li Thunderbolt 3. USB4 muaj ob qhov tshwj xeeb, raws li, USB4 40 nrog qhov siab tshaj plaws bandwidth ntawm 40Gbps, USB4 20 nrog qhov siab tshaj plaws bandwidth ntawm 20Gbps, thiab cov neeg siv khoom xav tau kom paub meej tias USB4 40 yog cov ntshav tag nrho.

Thaum lub Cuaj Hlis 2022, USB4 2.0 tus qauv tau nthuav tawm ua ntej, tus nqi siab tshaj plaws tau nce mus rau 80Gbps, cov ntaub ntawv tshiab tau txais kev pom zoo, thiab USB PD ceev them tus qauv, USB Hom-C interface thiab tus qauv cable kuj tseem yuav hloov kho synchronously.

Nws tuaj yeem pom tau tias nyob rau hauv cov txheej txheem hloov tshiab, qhov kev hloov pauv loj tshaj plaws yog kev txhim kho cov ntaub ntawv xa mus, los ntawm qhov pib 1.5Mbps mus rau qhov tam sim no raug ntawm USB4 2.0 tau mus txog 80Gbps, nce ntau ntau txhiab zaus. Qhov kev hloov pauv no feem ntau yog los ntawm kev hloov kho cov ntaub ntawv kis tau tus mob channel, txij li xyoo 2013, USB3 series version, nce mus rau 4 khub ntawm qhov sib txawv, thiab nruab nrog kev ua tau zoo dua USB-C chaw nres nkoj, ua cov ntaub ntawv xa mus tau zoo dua.

Tam sim no, muaj ntau yam khoom siv uas siv cov ntaub ntawv ceev ceev kis tau tus mob ntawm USB-C interface, feem ntau yog qee cov khoom siv sab nraud (xws li cov khoom siv hluav taws xob high-speed, high-speed transmission cables, thiab interfaces ncaj qha siv hauv ib co high-end notebooks).