Gwaro Rekupedzisira reUSB4 Kubva pa40Gbps Speed, Dynamic Bandwidth kusvika paFull-Function One-Cable Connection
Kubva pakatanga USB4, tanga tichiburitsa zvinyorwa zvakawanda uye malink ekugovera ruzivo rwakakodzera. Zvisinei, kufarirwa kwacho kwakakwira zvekuti vanhu kwese kwese vari kubvunza nezvemusika weUSB4. Kubva panguva yekutanga yeUSB 1.0 uye interface yekutumira data ye1.5Mbps, USB yave nezvizvarwa zvakawanda. Kwave kune zvakawanda specifications zvakaita seUSB 1.0, USB 2.0, uye USB 3.0, uye ma interface shapes uye magadzirirwo ekugadzira anosanganisira USB Type-A, USB Type-B, uye USB Type-C yakajairika parizvino, nezvimwewo. USB4 haina kungokurumidza kutumira chete asi inewo compatibility iri nani (inotsigira backward compatibility, ndiko kuti, compatibility neshanduro dzakaderera). Inogona kubatanidza dzinenge dzese zvishandiso zvinobudirira uye kuichaja. Kana foni yako, komputa, monitor, printer, nezvimwewo zvese zvichitsigira USB4, saka mudzidziso, unongoda data cable inotsigira USB4 kuti ubatanidze zvishandiso, zvichiita kuti home office ive nyore. Hauchadi kutenga ma interface conversion cables akasiyana-siyana. Saka, USB4 inogona kuita kuti mashandiro edu ave akasiyana uye akanakira. Pamusoro pezvo, chimwe chinhu chinoshamisa cheUSB4 ndechekuti inotarisirwa kushandiswa mumidziyo yekunze inotsigira makombiyuta ehungwaru hwekugadzira.
01 USB4 vs. USB3.2
USB 3.2 chiyero chitsva chakaburitswa nesangano reUSB-IF. Chakatangwa munaGunyana 2017. Kubva pamaonero ehunyanzvi, USB 3.2 imhando yekuvandudza uye yekuwedzera kune USB 3.1. Shanduko huru ndeyekuti kumhanya kwekutumira data kwakawedzerwa kusvika pa20 Gbps, uye interface ichiri kuteveraRudzi-Cchirongwa chakagadzirwa munguva yeUSB 3.1, hachichatsigiri maType-A neType-B. USB4 neUSB3.2 dzese dzinoshandisa maType-C interfaces, asi USB4 yakaoma zvikuru. USB4 inotsigira kutumira panguva imwe chete uye kugamuchira data rehost-to-host, PCI Express® (PCIe®), DisplayPort audio/video, uye USB kuburikidza neType-C interface imwe chete pane imwe link. Ma USB4 hosts maviri anogona kuchinjana mapaketi edata reIP kuburikidza ne host-to-host tunnel; DisplayPort ne USB tunnel transmission zvinoreva kuti audio, video, data, uye simba zvinogona kutumirwa kuburikidza neiyo interface, iyo inokurumidza kupfuura kushandisa USB3.2. Pamusoro pezvo, PCIe tunnel transmission inogona kupa bandwidth yakakwira, latency yakaderera, uye kuwana throughput yakakwira yekuchengetedza yakakura, edge artificial intelligence, uye mamwe mashandisirwo.
USB4 inobatanidza nzira mbiri dzekutumira nekugamuchira data mune imwe chete USB-C interface, ine mwero wekukurumidza kusvika ku20 Gbps uye40 Gbps, uye chiteshi chega chega chinogona kuva nedata rate inosvika 10 Gbps kana 20 Gbps. Kune vanogadzira machip, data iri rakakosha zvikuru. Vanofanira kuziva kuti muThunderbolt3 mode, data rate pane yega yega transmission nereception channel i10.3125 Gbps kana 20.625 Gbps. Mu USB mode yechinyakare, chiteshi chimwe chete chetransmission/reception chinomhanya nedanho re5 Gbps (USB3.0) or 10 Gbps (USB3.1), nepo nzira mbiri dzeUSB3.2 dzichimhanya ne10 Gbps.
Panyaya yekugara kwenguva refu, zvikamu zvinotakura simba zveType-C interface zvinonyanya kuve casing yesimbi yekunze, iyo yakasimba uye isingakuvadzi zvakanyanya. Nzira yepakati yedata inodzivirirwa nekavha yakaita searc, zvichiita kuti zviome kukuvara. Zvinodiwa pakugadzira zvinoratidza kutiUSB Type-Cinogona kutsungirira maplug-in anopfuura 10,000 uye kubviswa kwemaplugs pasina kukuvara. Kana ikaverengerwa zvichibva pa maplug-in matatu uye kubviswa kwemaplugs pazuva, USB Type-C interface inogona kushandiswa kwemakore angangoita gumi.
02 Kukurumidza Kushandiswa kweUSB4
Mushure mekuburitswa kwepamutemo kweprotocol yeUSB 3.2, sangano reUSB rakabva rangozivisa zvinodiwa zveUSB 4 mukati menguva pfupi. Kusiyana nemitemo yekare yakaita seUSB 3.2, iyo yakavakirwa paprotocol yeUSB pachayo, USB 4 haichashandisi ma USB specifications padanho rayo rekutanga asi panzvimbo pezvo inoshandisa protocol yeThunderbolt 3 iyo Intel yakazivisa zvizere. Uku ndiko kuchinja kukuru mukuvandudzwa kweUSB mumakumi emakore apfuura. Pakushandisa Type-C connector yekubatanidza, mabasa eUSB4 anotsiva ayo eUSB 3.2, uye USB 2.0 inogona kushanda panguva imwe chete. USB 3.2 Enhanced SuperSpeed inoramba iri iyo chivakwa chekutanga chekutumira "data reUSB" pamutsetse weUSB 4 chaiwo. Musiyano mukuru pakati peUSB4 neUSB 3.2 uri pakuti USB4 inotarisa pakubatanidza. USB4 yakagadzirwa nematunnels ekutumira data pamwe chete kubva kumaprotocol akawanda pane imwe interface chaiyo. Saka, kumhanya uye kugona kweUSB4 zvinogona kugovaniswa nenzira inochinja. USB4 inogona kutsigira mamwe maprotocol ekuratidza kana kutaurirana kwehost-to-host uku kutumira data kuchienderera mberi. Pamusoro pezvo, USB4 yakawedzera kumhanya kwekutaurirana kubva pa20 Gbps (Gen2x2) yeUSB 3.2 kuenda ku40 Gbps (Gen3x2)pachivakwa chimwe chete chine nzira mbiri, nzira mbiri-simplex.
USB4 haingogone kungoita USB inomhanya zvakanyanya (yakavakirwa paUSB3), asi inotsanangurawo matuneri ekuratidza akavakirwa paDisplayPort uye matuneri ekutakura/kuchengetera akavakirwa paPCIe.
Chiratidzo chekuratidzira: Nzira yekuratidza chiteshi cheUSB4 yakavakirwa paDisplayPort 1.4a. DP 1.4a pachayo inotsigira8k pa60Hz or 4k pa120HzUSB4 host inofanira kutsigira DisplayPort pamaport ese ari pasi. Kana ukashandisa USB 4 port kutumira vhidhiyo nedata panguva imwe chete, port yacho ichagovera bandwidth zvinoenderana. Saka, kana vhidhiyo ichingoda 20% chete yebandwidth kuti ityaire monitor yako ye1080p (iyo iriwo hub), saka 80% yasara yevhidhiyo inogona kushandiswa kutamisa mafaira kubva kuSSD yekunze.
Panyaya yematuneri ePCIe: Rutsigiro rwePCIe neUSB4 hosts haruna basa. Mahubhu eUSB4 anofanira kutsigira matuneri ePCIe uye switch yePCIe inofanira kunge iripo.
Chikamu chakakosha cheUSB 4 specification kugona kugadzirisa huwandu hwezvinhu zviripo pakutumira vhidhiyo nedata kuburikidza nekubatana kumwe chete. Saka, ngatitii une huwandu hwepamusoro hwe40 Gbps USB 4uye vari kukopa mafaira makuru kubva kuSSD yekunze voburitsa ku4K display. Ngatitii vhidhiyo yacho inoda angangoita 12.5 Gbps. Muchiitiko ichi, USB 4 ichaisa 27.5 Mbps yasara kubackup drive.
USB-C inoburitsa "alternative mode", iyo inokwanisa kutumira DisplayPort/HDMI vhidhiyo kubva paType-C port. Zvisinei, 3.x specification iripo haipe nzira yakanaka yekuparadzanisa zviwanikwa. Sekureva kwaSaunders, DisplayPort alt mode inogona kupatsanura bandwidth pakati pedata reUSB nedata revhidhiyo kuita 50/50, nepo HDMI alt mode isingabvumidze kushandiswa kwedata reUSB panguva imwe chete.
USB4 inotsanangura mwero we40Gbps, zvichigonesa kugovana bandwidth nenzira inochinja-chinja kuitira kuti tambo imwe chete yedata ikwanise kuzadzisa mabasa akawanda. NeUSB4, zvinokwanisika kutumira PCIe panguva imwe chete uye kuratidza data pamusoro pemutsetse mumwe chete, pamwe chete nemabasa echinyakare eUSB, uye kutopa simba (kuburikidza neUSB PD) nenzira iri nyore. Mune ramangwana, zvishandiso zvakawanda zveperipheral, ingave network dzinomhanya zvakanyanya, makadhi emifananidzo ekunze, madhiraivha emhando yepamusoro, zvishandiso zvekuchengetera zvinomhanya zvakanyanya, kana muchina mumwe nemumwe, zvinogona kubatanidzwa kuburikidza neType-C interface. Uyezve, kana zvishandiso izvi zvikashandisa USB4 Hub, unogona zvakare kubatanidza zvishandiso zvakawanda muzvikamu kana matavi kubva kumidziyo iyi, izvo zviri nyore kwazvo.
Nguva yekutumira: Gumiguru-20-2025
