USB4 2.0 Muab ob npaug rau qhov ceev, yav tom ntej nyob ntawm no
Raws li PC motherboard manufacturers siv40 Gbps USB4, tib neeg pab tsis tau tab sis xav paub seb lub hom phiaj tom ntej ntawm qhov kev sib txuas thoob ntiaj teb no yuav yog dab tsi? Nws hloov tawm mus rau USB4 2.0, uas muab80gbps uacov ntaub ntawv bandwidth nyob rau hauv txhua qhov kev taw qhia thiab 60W lub zog xa khoom (PD) rau qhov txuas. Lub zog xa khoom ntawm USB4 2.0 tuaj yeem ncav cuag 240 W (48 V, 5 A). Muaj ib txwm muaj ntau yam ntawm USB, uas tuaj yeem piav qhia ntau yam. Txawm li cas los xij, nrog kev sib koom ua ke ntawm cov interfaces maj mam, tus naj npawb ntawm USB versions tau poob qis. Thaum lub sijhawm USB4, tsuas yog USB-C interface tseem nyob. Vim li cas tseem muaj 2.0 version? Qhov hloov tshiab loj tshaj plaws ntawm USB4 2.0 yog nws qhov kev txhawb nqa rau cov ntaub ntawv hloov pauv mus txog 80 Gbps, tag nrho dhau ntawm Thunderbolt 4 interface. Wb delve rau hauv cov ntsiab lus.
Yav dhau los, USB4 1.0 tus qauv tau tsim los ntawm Thunderbolt 3 thev naus laus zis, nrog rau qhov siab tshaj plaws hloov cov ntaub ntawv ntawm40 Gbps. Lub 2.0 version tau tsim los ntawm cov txheej txheem tshiab lub cev txheej txheem, nce cov ntaub ntawv hloov pauv ntawm qhov siab tshaj ntawm 40 Gbps mus rau 80 Gbps, teeb tsa lub qab nthab tshiab rau USB-C ecosystem. Nws yuav tsum tau muab sau tseg tias tus tshiab 80 Gbps tus nqi yuav tsum tau active cables thiab tej zaum yuav tsuas tau txais kev txhawb los ntawm ib co high-end khoom nyob rau hauv lub neej yav tom ntej. CovUSB4 2.0cov ntaub ntawv architecture kuj tau hloov kho. Ua tsaug rau cov txheej txheem tshiab ntawm lub cev raws li PAM3 teeb liab encoding mechanism thiab qhov tshiab tau txiav txim siab 80 Gbps active cov ntaub ntawv cable, cov khoom siv tuaj yeem ua rau tag nrho thiab tsim nyog siv bandwidth. Qhov kev hloov tshiab no cuam tshuam ntxivUSB 3.2, DisplayPort video kis tau tus mob, thiab PCI Express cov ntaub ntawv raws. Yav dhau los, qhov siab tshaj plaws hloov pauv ntawm USB 3.2 yog 20 Gbps (USB 3.2 Gen2x2). Raws li cov ntaub ntawv tshiab, tus nqi ntawm USB 3.2 yuav dhau 20 Gbps thiab ncav cuag qhov tshwj xeeb dua.
Hais txog kev sib raug zoo, USB4 2.0 yuav rov qab sib xws nrog USB4 1.0, USB 3.2, thiab Thunderbolt 3, yog li tsis tas yuav txhawj xeeb txog teeb meem kev sib raug zoo. Tsis tas li ntawd, kom txaus siab rau cov ntaub ntawv hloov pauv ntawm 80Gbps, lub cim tshiab tshiab thiab nquagUSB-C rau USB-Ccov ntaub ntawv cable yuav tsum tau ua kom tiav qhov ceev no. Passive thiab inductive USB-C rau USB-C cov ntaub ntawv cables tseem muaj qhov siab tshaj plaws bandwidth ntawm 40Gbps. Txhawm rau kom meej meej cov pawg tam sim no ntawm USB, USB interface tau pib koom ua ke los ntawm kev hu nws raws li kev sib kis bandwidth. Piv txwv li, USB4 v2.0 sib raug rau USB 80Gbps, USB4 sib raug rauUSB 40Gbps, USB 3.2 Gen2x2sib raug rau 20Gbps, USB 3.2 Gen2 sib raug rauUSB 10 Gbps, thiabUSB 3.2 Gen1sib raug rau USB 5Gbps, thiab lwm yam. Cov ntawv ntim khoom, cov ntawv cim interface, thiab cov ntaub ntawv cable tuaj yeem pom hauv daim duab hauv qab no.
Thaum Lub Kaum Hli 2022, USB-IF twb tau tso tawm USB4 version 2.0 specification, uas tuaj yeem ua tiav kev sib kis ntawm 80 Gbps. Qhov cuam tshuamUSB Hom-CthiabUSB Power Delivery (USB PD)specifications kuj tau hloov kho. Raws li USB4 version 2.0 specification, USB hom-C teeb liab interface kuj tuaj yeem teeb tsa asymmetrically, muab qhov siab tshaj plaws ntawm 120 Gbps nyob rau hauv ib qho kev taw qhia thaum tuav ceev ntawm 40 Gbps nyob rau hauv lwm txoj kev. Tam sim no, ntau lub high-end 4K saib xaiv los txhawb USB-C ib-kab txuas rau laptops. Tom qab tso tawm ntawm 80 Gbps USB4 2.0 daws, qee qhov4K 144 Hzsaib lossis 6K, 8K saib tau yooj yim txuas mus rau laptops ntawm USB-C. Lub 80 Gbps USB interface tuav lub USB Type-C chaw nres nkoj kom ntseeg tau tias muaj kev sib raug zoo nrog USB 4 Version 1.0, USB 3.2, USB 2.0 thiab Thunderbolt 3. Tsis tas li ntawd, "80 Gbps USB Type-C Data Cable" tso tawm thaum kawg ntawm lub xyoo no txhawb nqa lub zog tag nrho ntawm 80 Gbps charging tus nqi ntawm USA 28V / 4V / 20W. PIB EPR). Cov khoos phis tawm tshiab tiam tshiab xav tias yuav tsim tawm thaum kawg ntawm lub xyoo no lossis xyoo tom ntej xav tias yuav pib txhawb USB 80 Gbps. Ntawm qhov tod tes, lub zog siab gaming PCs thiab cov saib yuav tuaj yeem siv tau zoo dua ntawm daim npav ua haujlwm; ntawm qhov tod tes, sab nraud solid-state PCIe tuaj yeem khiav mus rau tag nrho lub peev xwm.
Post lub sij hawm: Sep-19-2025
