USB4 2.0 Liwiro Liwiri, Tsogolo Lafika
Monga momwe opanga ma PC motherboard amagwirira ntchito40 Gbps USB4, anthu sangalephere kudzifunsa kuti cholinga chotsatira cha muyezo wolumikizira wapadziko lonsewu chidzakhala chiyani? Zinapezeka kuti ndi USB4 2.0, yomwe imapereka80 Gbpsbandwidth ya data mbali iliyonse ndi kutumiza mphamvu ya 60W (PD) kwa cholumikizira. Kutumiza mphamvu kwa USB4 2.0 kumatha kufika pa 240 W (48 V, 5 A). Nthawi zonse pakhala mitundu yambiri ya USB, yomwe ingatchulidwe kuti ndi yosiyana. Komabe, ndi kulumikizana pang'onopang'ono kwa ma interfaces, chiwerengero cha mitundu ya USB chatsika kwambiri. Pofika nthawi ya USB4, mawonekedwe a USB-C okha ndi omwe atsala. Nchifukwa chiyani pakadali mtundu wa 2.0? Kusintha kwakukulu kwa mtundu wa USB4 2.0 ndikuthandizira kwake kuchuluka kwa kusamutsa deta mpaka 80 Gbps, kupitirira kwathunthu mawonekedwe a Thunderbolt 4. Tiyeni tifufuze tsatanetsatane.
Kale, muyezo wa USB4 1.0 unapangidwa kutengera ukadaulo wa Thunderbolt 3, ndipo kuchuluka kwa data komwe kumafika pamlingo wapamwamba kwambiri40 GbpsMtundu wa 2.0 unapangidwa kutengera kapangidwe katsopano ka zigawo zakuthupi, kuonjezera kuchuluka kwa kusamutsa deta kuchokera pa 40 Gbps kufika pa 80 Gbps, ndikukhazikitsa mtunda watsopano wa magwiridwe antchito a dongosolo la USB-C. Tiyenera kudziwa kuti kuchuluka kwa 80 Gbps kumafuna zingwe zogwira ntchito ndipo kungathandizidwe ndi zinthu zina zapamwamba mtsogolo.USB4 2.0kapangidwe ka deta kasinthidwanso. Chifukwa cha kapangidwe katsopano ka zigawo zakuthupi kozikidwa pa njira yolembera chizindikiro cha PAM3 ndi chingwe chatsopano cha data cha 80 Gbps, zipangizo zimatha kugwiritsa ntchito bwino bandwidth. Kusintha kumeneku kumakhudzanso.USB 3.2, Kutumiza kanema wa DisplayPort, ndi njira za data za PCI Express. Kale, kuchuluka kwakukulu kwa USB 3.2 komwe kunkagwiritsidwa ntchito kunali 20 Gbps (USB3.2 Gen2x2). Pansi pa kapangidwe katsopano ka deta, liwiro la USB 3.2 lidzapitirira 20 Gbps ndipo lidzafika pamlingo wapamwamba.
Ponena za kugwirizana, USB4 2.0 idzakhala yogwirizana ndi USB4 1.0, USB 3.2, ndi Thunderbolt 3, kotero palibe chifukwa chodera nkhawa ndi mavuto okhudzana ndi kugwirizana. Kuphatikiza apo, kuti musangalale ndi liwiro losamutsa deta la 80Gbps, pulogalamu yatsopano yogwira ntchito komanso yogwira ntchitoUSB-C kupita ku USB-CChingwe cha data chikufunika kuti chifike pa liwiro limeneli. Zingwe za data za USB-C kupita ku USB-C zomwe sizili ndi mphamvu komanso zoyambitsa ntchito zili ndi bandwidth yayikulu ya 40Gbps. Kuti timvetse bwino magulu a USB omwe alipo, mawonekedwe a USB ayamba kugwirizanitsidwa powatchula kutengera bandwidth yotumizira. Mwachitsanzo, USB4 v2.0 ikufanana ndi USB 80Gbps, USB4 ikufanana ndiUSB 40Gbps, USB 3.2 Gen2x2ikugwirizana ndi 20Gbps, USB 3.2 Gen2 ikugwirizana ndiUSB 10GbpsndiUSB 3.2 Gen1ikugwirizana ndi USB 5Gbps, ndi zina zotero. Zolemba zolongedza, zolemba zolumikizirana, ndi zilembo za chingwe cha data zitha kuwoneka pachithunzi chotsatirachi.
Mu Okutobala 2022, USB-IF idatulutsa kale mawonekedwe a USB4 version 2.0, omwe amatha kukwaniritsa magwiridwe antchito a 80 Gbps.Mtundu wa USB CndiKutumiza Mphamvu kwa USB (USB PD)Mafotokozedwe asinthidwanso. Pansi pa mafotokozedwe a USB4 version 2.0, mawonekedwe a chizindikiro cha USB Type-C amathanso kukonzedwa mosiyana, kupereka liwiro lalikulu mpaka 120 Gbps mbali imodzi pomwe akusunga liwiro la 40 Gbps mbali inayo. Pakadali pano, ma monitor ambiri apamwamba a 4K amasankha kuthandizira kulumikizana kwa USB-C kwa laputopu. Pambuyo poyambitsa njira ya 80 Gbps USB4 2.0, ena4K 144HzMa monitor kapena ma monitor a 6K, 8K amatha kulumikizana mosavuta ndi ma laptops kudzera pa USB-C. Ma interface a 80 Gbps USB amasunga doko la USB Type-C kuti atsimikizire kuti likugwirizana ndi USB 4 Version 1.0, USB 3.2, USB 2.0 ndi Thunderbolt 3 yomwe ilipo. Kuphatikiza apo, "80 Gbps USB Type-C Data Cable" yomwe idatulutsidwa kumapeto kwa chaka chino imathandizira mtundu wonse wa 80 Gbps rate pomwe ikuthandizira mphamvu yochaja ya 240W 48V/5A (USB PD EPR). Ma laptops atsopano omwe akuyembekezeka kuyambitsidwa kumapeto kwa chaka chino kapena chaka chamawa akuyembekezeka kuyamba kuthandizira USB 80 Gbps. Kumbali imodzi, ma PC ndi ma monitor amphamvu kwambiri azitha kugwiritsa ntchito bwino magwiridwe antchito a khadi la zithunzi; kumbali ina, PCIe yakunja yolimba imathanso kugwira ntchito mokwanira.
Nthawi yotumizira: Sep-19-2025
