Isikhokelo esigqibeleleyo kwi-USB4 ukusuka kwi-40Gbps isantya, i-Dynamic Bandwidth ukuya kwiFunction Full-Cable-Cable Connection
Ukusukela ekuveleni kwe-USB4, besipapasha amanqaku amaninzi kunye namakhonkco ukwabelana ngolwazi olufanelekileyo. Nangona kunjalo, ukuthandwa bekuphezulu kangangokuba abantu kuyo yonke indawo babuza malunga nemarike ye-USB4. Ukususela kwixesha lokuqala le-USB 1.0 kunye ne-1.5Mbps yokuhanjiswa kwedatha, i-USB idlule kwizizukulwana ezininzi. Kubekho iinkcukacha ezininzi ezifana ne-USB 1.0, i-USB 2.0, kunye ne-USB 3.0, kunye neemilo zojongano kunye nezicwangciso zoyilo zibandakanya i-USB Type-A, i-USB Type-B, kunye neyona nto ixhaphakileyo ye-USB Type-C, njl njl. Inokudibanisa phantse zonke izixhobo ngokufanelekileyo kwaye ihlawule. Ukuba ifowuni yakho, ikhompyutha, imonitha, umshicileli, njl. zonke zixhasa i-USB4, ngoko ithiyori, ufuna kuphela intambo yedatha exhasa i-USB4 ukuqhagamshela izixhobo, ukwenza i-ofisi yasekhaya ibe lula ngakumbi. Akusekho mfuneko yokuba uthenge iintambo ezahlukeneyo zokuguqula ujongano. Ke ngoko, i-USB4 inokwenza imo yethu yokusebenza yahluke ngakumbi kwaye ilungele. Ukongeza, enye into ephawulekayo ye-USB4 kukuba kulindeleke ukuba isetyenziswe kwizixhobo ezixhasa i-computing intelligence computing.
01 USB4 vs. USB3.2
I-USB 3.2 ngumgangatho omtsha okhutshwe ngumbutho we-USB-IF. Ngokwenene yaziswa kwangoko ngoSeptemba 2017. Ukususela kumbono wobugcisa, i-USB 3.2 iyiphuculo kunye nokuncedisa kwi-USB 3.1. Olona tshintsho luphambili kukuba isantya sothumelo lwedatha sonyusiwe saya kutsho kuma-20 Gbps, kwaye ujongano lusalandelaUhlobo-Ciskimu esasekwe kwixesha le-USB 3.1, alisaxhasi i-Type-A kunye ne-Type-B interfaces. Zombini i-USB4 kunye ne-USB3.2 zisebenzisa ujongano lwe-Type-C, kodwa i-USB4 inzima kakhulu. I-USB4 ixhasa ukuhanjiswa kwangaxeshanye kunye nolwamkelo lwe-host-to-host, i-PCI Express® (PCIe®), i-DisplayPort audio/video, kunye nedatha ye-USB ngokusebenzisa ujongano olufanayo lwe-Type-C kwikhonkco elifanayo. Iinginginya ezimbini ze-USB4 zinokutshintshisa iipakethi zedatha ye-IP ngokusebenzisa itonela yokusingatha-ukubamba; I-DisplayPort kunye nokuhanjiswa kwetonela ye-USB kuthetha ukuba i-audio, ividiyo, idatha, kunye namandla anokuhanjiswa nge-interface efanayo, ekhawuleza kakhulu kunokusebenzisa i-USB3.2. Ukongeza, ukuhanjiswa kwetonela ye-PCIe kunokubonelela nge-bandwidth ephezulu, i-latency ephantsi, kunye nokufezekisa umthamo ophezulu wokugcina umthamo omkhulu, ubukrelekrele bokwenziwa komda, kunye nezinye iimeko zokusetyenziswa.
I-USB4 idibanisa iitshaneli ezimbini zothumelo kunye nolwamkelo kwi-interface ye-USB-C enye, kunye nomlinganiselo wokuya kuma-20 Gbps kunye40 Gbps, kwaye ishaneli nganye ingaba nomlinganiselo wedatha malunga ne-10 Gbps okanye i-20 Gbps. Kubaphuhlisi be-chip, le datha ibaluleke kakhulu. Kufuneka bazi ukuba kwimodi ye-Thunderbolt3, izinga ledatha kwisiteshi ngasinye sothumelo kunye nokwamkela i-10.3125 Gbps okanye i-20.625 Gbps. Kwimowudi ye-USB yemveli, itshaneli enye kuphela yothumelo/yokwamkela isebenza ngesantya seI-5 Gbps (USB3.0) or I-10 Gbps (USB3.1), ngelixa iziteshi ezimbini ze-USB3.2 zisebenza kwizinga le-10 Gbps.
Ngokumalunga nokuqina, amacandelo okunyanzeliswa kwe-Type-C interface ngokuyintloko yi-casing yangaphandle yentsimbi, eyomeleleyo kwaye ingaphantsi komonakalo. Ishaneli yedatha ephakathi ikhuselwe yikhava ene-arc, eyenza kube nzima ukonakala. Iimfuno zoyilo zibonisa ukubaUSB Type-Cinokumelana ne-plug-ins engaphezulu kwe-10,000 kunye nokukhupha ngaphandle kokulimala. Ukuba kubalwa ngokusekelwe kwiiplagi ezi-3 kunye nee-unplugs ngosuku, i-interface ye-USB Type-C ingasetyenziselwa ubuncinane iminyaka eyi-10.
02 Ukusasazwa okuKhawulezayo kwe-USB4
Emva kokukhululwa ngokusemthethweni kweprotocol ye-USB 3.2, umbutho we-USB wazisa ngokukhawuleza iinkcukacha ze-USB 4 ngexesha elifutshane. Ngokungafaniyo nemigangatho yangaphambili efanaI-USB 3.2, eyayisekwe kwiprotocol ye-USB, i-USB 4 ayisathathi iinkcukacha ze-USB kwinqanaba layo elisisiseko kodwa endaweni yoko yamkela iprotocol yeThunderbolt 3 etyhilwe yi-Intel ngokupheleleyo. Olu lolona tshintsho lukhulu kuphuhliso lwe-USB kule minyaka imbalwa idlulileyo. Xa usebenzisa isidibanisi se-Type-C yoqhagamshelwano, imisebenzi ye-USB4 ithatha indawo ye-USB 3.2, kunye ne-USB 2.0 inokusebenza ngaxeshanye. I-USB 3.2 I-SuperSpeed ephuculweyo ihlala iyisiseko esisisiseko sokuhanjiswa kwe-"USB data" kumgca we-USB 4 womzimba. Owona mahluko mkhulu phakathi kwe-USB4 kunye ne-USB 3.2 ilele ekubeni i-USB4 ijolise kunxibelelwano. I-USB4 iyilwe ngeetonela zokuhambisa idatha ngokudibeneyo ukusuka kwiiprothokholi ezininzi kujongano lomzimba omnye. Ngaloo ndlela, isantya kunye nomthamo we-USB4 unokwabelwana ngokuguquguqukayo. I-USB4 inokuxhasa ezinye iiprothokholi zokubonisa okanye unxibelelwano lwe-host-to-host ngelixa ukuhanjiswa kwedatha kuqhubeka. Ukongeza, i-USB4 inyuse isantya sonxibelelwano ukusuka kwi-20 Gbps (Gen2x2) ye-USB 3.2 ukuya40 Gbps (Gen3x2)Kwindlela enye, ezimbini-ezilula zokwakha.
I-USB4 ayiphumeleli kuphela i-USB enesantya esiphezulu (esekwe kwi-USB3), kodwa ikwachaza iitonela zokubonisa ezisekwe kwiDisplayPort kunye netonela yokulayisha/yevenkile esekwe kwiPCIe.
Umzobo wokubonisa: Iprotocol yetonela yokubonisa ye-USB4 isekwe kwiDisplayPort 1.4a. I-DP 1.4a ngokwayo ixhasa8k nge60Hz or 4k ku120Hz. Umamkeli we-USB4 ufuna ukuxhasa iDisplayPort kuwo onke amazibuko asezantsi. Ukuba usebenzisa i-USB 4 port ukuhambisa ividiyo kunye nedatha ngaxeshanye, i-port iya kwabela i-bandwidth ngokufanelekileyo. Ngoko ke, ukuba ividiyo ifuna kuphela i-20% ye-bandwidth ukuqhuba i-monitor yakho ye-1080p (ekwayi-hub), ngoko i-80% eseleyo yevidiyo ingasetyenziselwa ukudlulisa iifayile kwi-SSD yangaphandle.
Ngokweetonela ze-PCIe: Inkxaso ye-PCIe ngabamkeli be-USB4 ayikhethi. Iihabhu ze-USB4 kufuneka zixhase iitonela zePCIe kwaye iswitshi yangaphakathi yePCIe kufuneka ibekho.
Inxalenye ebalulekileyo yenkcazo ye-USB 4 yikhono lokulungelelanisa ngokuguquguqukayo inani lezibonelelo ezikhoyo xa uthumela ividiyo kunye nedatha ngokusebenzisa uxhumano olufanayo. Ke, cinga ukuba unobuninzi be40 Gbps USB 4kwaye bakhuphela iifayile ezinkulu kwi-SSD yangaphandle kwaye bakhuphela kumboniso we-4K. Masithi umthombo wevidiyo ufuna malunga ne-12.5 Gbps. Kule meko, i-USB 4 iya kwabela i-27.5 Mbps eseleyo kwi-backup drive.
I-USB-C yazisa "enye indlela", okukwazi ukuhambisa ividiyo ye-DisplayPort/HDMI ukusuka kwizibuko le-Type-C. Nangona kunjalo, inkcazo ye-3.x yangoku ayiboneleli ngendlela efanelekileyo yokwahlula izibonelelo. Ngokutsho kweSaunders, i-DisplayPort imowudi ye-alt inokwahlula ngokuchanekileyo umda phakathi kwedatha ye-USB kunye nedatha yevidiyo kwi-50/50, ngelixa i-HDMI imodi ye-alt ayivumeli ukusetyenziswa kwedatha ye-USB ngaxeshanye.
I-USB4 ichaza umgangatho we-40Gbps, eyenza ukwabelana okuguquguqukayo kwe-bandwidth ukwenzela ukuba ikhebula ledatha enye inokuzalisekisa imisebenzi emininzi. Nge-USB4, kuyenzeka ukuba ngaxeshanye usasaze i-PCIe kwaye ubonise idatha kumgca omnye, kunye nemisebenzi ye-USB yemveli, kunye nokubonelela ngamandla (nge-USB PD) ngendlela elula kakhulu. Kwixesha elizayo, uninzi lwezixhobo ze-peripheral, nokuba ziinethiwekhi ezihamba ngesantya esiphezulu, amakhadi emizobo yangaphandle, iziboniso ezibonisa ingcaciso ephezulu, izixhobo zogcino olunomthamo omkhulu, okanye umatshini omnye kunye nomnye umatshini, unokudityaniswa ngonxibelelwano lwe-Type-C. Ngaphezu koko, ukuba ezi zixhobo zisebenzisa i-USB4 Hub, unokuqhagamshela izixhobo ezininzi kuthotho okanye amasebe asuka kwezi zixhobo, nto leyo ilunge kakhulu.
Ixesha lokuposa: Oct-20-2025
