USB4 2.0 Ob Zaug Ceev, Yav Tom Ntej Nyob Ntawm No
Raws li cov chaw tsim khoom ntawm PC motherboard siv40 Gbps USB4, tib neeg tsis tuaj yeem pab tab sis xav tsis thoob tias lub hom phiaj tom ntej ntawm tus qauv kev sib txuas thoob ntiaj teb no yuav yog dab tsi? Nws hloov tawm tias yog USB4 2.0, uas muab80 Gbpsbandwidth ntawm cov ntaub ntawv hauv txhua qhov kev taw qhia thiab 60W fais fab xa khoom (PD) rau lub connector. Lub zog xa khoom ntawm USB4 2.0 tuaj yeem ncav cuag txog li 240 W (48 V, 5 A). Yeej ib txwm muaj ntau hom USB, uas tuaj yeem piav qhia tias muaj ntau yam. Txawm li cas los xij, nrog rau kev sib koom ua ke ntawm cov interfaces, tus lej ntawm cov USB versions tau txo qis heev. Los ntawm lub sijhawm ntawm USB4, tsuas yog USB-C interface tseem tshuav. Vim li cas tseem muaj 2.0 version? Qhov hloov tshiab loj tshaj plaws ntawm USB4 2.0 yog nws txhawb nqa rau tus nqi xa cov ntaub ntawv txog li 80 Gbps, dhau qhov Thunderbolt 4 interface. Cia peb nkag mus rau hauv cov ntsiab lus.
Yav tas los, tus qauv USB4 1.0 tau tsim los ntawm Thunderbolt 3 thev naus laus zis, nrog rau qhov siab tshaj plaws ntawm kev xa cov ntaub ntawv ntawm40 Gbps. Lub version 2.0 tau tsim los ntawm kev tsim cov txheej txheem tshiab, ua rau cov ntaub ntawv hloov pauv ntawm qhov siab tshaj plaws ntawm 40 Gbps mus rau 80 Gbps, teeb tsa lub qab nthab kev ua tau zoo tshiab rau USB-C ecosystem. Nws yuav tsum tau sau tseg tias tus nqi tshiab 80 Gbps xav tau cov cables nquag thiab tsuas yog txhawb nqa los ntawm qee cov khoom lag luam siab kawg yav tom ntej. LubUSB4 2.0Cov qauv ntaub ntawv kuj tau hloov kho tshiab. Ua tsaug rau cov qauv txheej txheem lub cev tshiab raws li PAM3 teeb liab encoding mechanism thiab 80 Gbps active data cable tshiab, cov khoom siv tuaj yeem siv tag nrho thiab tsim nyog ntawm bandwidth. Qhov kev hloov kho no cuam tshuam ntxiv rauUSB 3.2, Kev xa video DisplayPort, thiab PCI Express cov channel ntaub ntawv. Yav tas los, qhov siab tshaj plaws ntawm USB 3.2 yog 20 Gbps (USB3.2 Gen2x2)Nyob rau hauv cov qauv ntaub ntawv tshiab, tus nqi ntawm USB 3.2 yuav tshaj 20 Gbps thiab ncav cuag qhov kev qhia tshwj xeeb siab dua.
Hais txog kev sib raug zoo, USB4 2.0 yuav sib raug zoo nrog USB4 1.0, USB 3.2, thiab Thunderbolt 3, yog li tsis tas yuav txhawj txog cov teeb meem sib raug zoo. Tsis tas li ntawd, kom txaus siab rau tus nqi hloov ntaub ntawv ntawm 80Gbps, ib qho tshiab thiab nquagUSB-C rau USB-CYuav tsum muaj cov xov hlau ntaub ntawv kom ua tiav qhov ceev no. Cov xov hlau ntaub ntawv passive thiab inductive USB-C rau USB-C tseem muaj qhov siab tshaj plaws ntawm 40Gbps. Txhawm rau kom meej dua cov pawg tam sim no ntawm USB, lub USB interface tau pib koom ua ke los ntawm kev muab nws lub npe raws li qhov bandwidth kis. 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 10Gbps, thiabUSB 3.2 Gen1sib xws rau USB 5Gbps, thiab lwm yam. Cov ntawv lo rau ntawm lub thawv, cov ntawv lo rau ntawm qhov interface, thiab cov ntawv lo rau ntawm cov ntaub ntawv cable tuaj yeem pom hauv daim duab hauv qab no.
Thaum Lub Kaum Hli Ntuj xyoo 2022, USB-IF twb tau tso tawm cov lus qhia USB4 version 2.0, uas tuaj yeem ua tiav kev xa mus ntawm 80 Gbps. Cov yam ntxwv cuam tshuamUSB Hom-CthiabKev Xa Fais Fab USB (USB PD)Cov lus qhia tshwj xeeb kuj tau hloov kho tshiab. Raws li USB4 version 2.0 specification, USB Type-C teeb liab interface kuj tseem tuaj yeem teeb tsa asymmetrically, muab qhov ceev tshaj plaws txog li 120 Gbps hauv ib qho kev taw qhia thaum tswj qhov ceev ntawm 40 Gbps hauv lwm qhov kev taw qhia. Tam sim no, ntau lub high-end 4K saib xaiv los txhawb USB-C ib kab kev sib txuas rau laptops. Tom qab tso tawm ntawm 80 Gbps USB4 2.0 kev daws teeb meem, qee qhov4K 144HzCov saib xyuas lossis 6K, 8K saib xyuas tuaj yeem txuas tau yooj yim rau cov laptops ntawm USB-C. Lub 80 Gbps USB interface khaws cia qhov chaw nres nkoj USB Type-C kom ntseeg tau tias sib xws nrog USB 4 Version 1.0, USB 3.2, USB 2.0 thiab Thunderbolt 3 uas twb muaj lawm. Tsis tas li ntawd, "80 Gbps USB Type-C Data Cable" uas tau tso tawm thaum kawg ntawm lub xyoo no txhawb nqa qhov ceev tag nrho ntawm 80 Gbps tus nqi thaum tseem txhawb nqa lub zog them ntawm 240W 48V / 5A (USB PD EPR). Cov laptops tshiab uas xav tias yuav tso tawm thaum kawg ntawm lub xyoo no lossis xyoo tom ntej yuav pib txhawb nqa USB 80 Gbps. Ntawm ib sab tes, cov PCs ua si muaj zog thiab cov saib xyuas yuav muaj peev xwm siv cov duab zoo dua; ntawm qhov tod tes, PCIe sab nraud kuj tuaj yeem khiav mus rau qhov muaj peev xwm tag nrho.
Lub sijhawm tshaj tawm: Cuaj hlis-19-2025
