USB 3: Nws yog dab tsi?

by kim Kho tshiab: Lub Xya hli ntuj 10, 2022

USB 3.0 thiab USB 2.0 yog ob qho tib si hauv ntau tsev neeg. Tab sis lawv txawv li cas? Cia peb saib qhov sib txawv ntawm USB 3.0 thiab USB 2.0.

Thawj zaug tso tawm xyoo 2000, USB 2.0 tus qauv muaj qhov ceev ntawm 1.5 megabits ib ob (Mbps) thiab kev kub ceev ntawm 12 Mbps. Xyoo 2007, USB 3.0 tus qauv tau tso tawm uas muaj qhov ceev ntawm 5 Gbps.

Hauv tsab xov xwm no, kuv yuav hais txog qhov sib txawv ntawm ob tus qauv thiab thaum twg yuav siv txhua tus.

Qhov Deal nrog USB 3.0 yog dab tsi?

USB 3.0 yog qhov tseeb thiab zoo tshaj plaws hauv USB thev naus laus zis. Nws tau txais ntau tus pins, nrawm nrawm dua, thiab rov qab sib xws nrog txhua lwm yam USB versions. Tab sis qhov ntawd txhais li cas rau koj? Cia peb ua kom tawg.

USB 3.0 yog dab tsi?

USB 3.0 yog qhov tseeb thiab zoo tshaj plaws hauv USB thev naus laus zis. Nws zoo li USB 2.0, tab sis nrog qee qhov kev txhim kho loj. Nws tau txais kev hloov ceev ceev, muaj zog dua, thiab siv tsheb npav zoo dua. Hauv lwm lo lus, nws yog muv lub hauv caug!

Cov txiaj ntsig yog dab tsi?

USB 3.0 yog txoj kev sai dua USB 2.0. Nws tau txais kev hloov ceev txog li 5 Gbit / s, uas yog nyob ib ncig ntawm 10 npaug sai dua USB 2.0. Ntxiv rau, nws tau txais ob txoj hauv kev cov ntaub ntawv unidirectional, yog li koj tuaj yeem xa thiab tau txais cov ntaub ntawv tib lub sijhawm. Nws kuj tau txhim kho kev tswj hwm hluav taws xob thiab kev txhawb nqa rau kev hloov xov xwm.

Nws Zoo Li Cas?

USB 3.0 zoo li ib qho chaw nres nkoj USB li niaj zaus, tab sis nws tau txais lub hnab yas xiav. Nws tau txais plaub tus pins rau USB 1.x/2.0 compatibility thiab tsib tus pins rau USB 3.0. Nws kuj tau txais qhov siab tshaj plaws cable ntev ntawm 3 meters (10 ft).

Qhov txawv ntawm USB Versions yog dab tsi?

Qhov sib txawv tseem ceeb ntawm USB versions yog lawv qhov kev hloov pauv (ceev) thiab pes tsawg tus pins txuas lawv muaj. Ntawm no yog ib tug ceev ceev:

• USB 3.0 chaw nres nkoj muaj 9 tus pins thiab muaj kev hloov pauv ntawm 5 Gbit / s.
• USB 3.1 chaw nres nkoj muaj 10 tus pins thiab muaj kev hloov pauv ntawm 10 Gbit / s.
• USB-C connectors txhawb USB versions 3.1 thiab 3.2 thiab tuaj yeem txuas rau USB 3 ports nrog txoj cai cable lossis adapter.

Tom qab Compatibility

Cov xov xwm zoo: USB kev sib txuas yog rov qab tau tshaj. Qhov ntawd txhais tau hais tias cov ntawv qub yuav ua haujlwm nrog cov tshiab, tab sis lawv tsuas yog ua haujlwm ntawm lawv qhov ceev ceev. Yog li yog tias koj txuas USB 2 hard drive rau USB 3 chaw nres nkoj, tus nqi hloov pauv yuav yog USB 2 nrawm.

Dab tsi yog qhov txawv ntawm USB-C?

USB-C yog tus menyuam tshiab ntawm qhov thaiv. Nws muaj ntau tus pins sib cuag, uas ua rau kom muaj bandwidth thiab them peev xwm. Ntxiv rau, nws tuaj yeem siv tau ntawm 2.0, 3.0, 3.1, thiab 3.2 nrawm. Nws tseem tuaj yeem yog Thunderbolt 3 enabled, uas txhawb kev sib txuas rau Thunderbolt 3 enabled li.

Kuv Yuav Qhia Li Cas USB Ports Kuv Muaj?

Hauv PC, USB 3.0 cov chaw nres nkoj tuaj yeem txheeb xyuas los ntawm kev txheeb xyuas Tus Thawj Tswj Ntaus Ntawv. Lawv feem ntau yog xiav lossis cim nrog "SS" (SuperSpeed) logo. Ntawm Mac, USB chaw nres nkoj tuaj yeem txheeb xyuas hauv System Information menu. Lawv tsis xiav lossis cim zoo li hauv PC.

Yog li dab tsi yog kab hauv qab?

USB 3.0 yog txoj hauv kev mus yog tias koj xav tau kev hloov pauv sai dua, muaj zog dua, thiab siv tsheb npav zoo dua. Nws yog qhov kev xaiv zoo tshaj plaws rau txhua tus neeg uas xav tau tshaj tawm ntawm lawv cov khoom siv USB. Yog li tsis txhob tso tseg - tau txais USB 3.0 hnub no!

Nkag siab txog USB Connectors

Standard-A thiab Standard-B Connectors

Yog tias koj yog ib tus neeg nyiam tshaj lij, tej zaum koj tau hnov ​​​​txog USB txuas. Tab sis koj puas paub lawv yog dab tsi thiab lawv ua haujlwm li cas? Cia peb ua kom tawg.

USB 3.0 Standard-A connectors yog siv los txuas rau lub computer chaw nres nkoj ntawm tus tswv tsev. Lawv tuaj yeem lees txais USB 3.0 Standard-A plug lossis USB 2.0 Standard-A plug. Ntawm qhov tod tes, USB 3.0 Standard-B connectors yog siv rau sab ntaus ntawv thiab tuaj yeem lees txais USB 3.0 Standard-B ntsaws lossis USB 2.0 Standard-B ntsaws.

Xim-coding

Txhawm rau kom paub tseeb tias koj tsis txhob ntxhov siab ntawm USB 2.0 thiab USB 3.0 cov chaw nres nkoj, USB 3.0 specification pom zoo tias Standard-A USB 3.0 receptacle muaj xiav ntxig. Cov xim coding no kuj siv tau rau USB 3.0 Standard-A plug.

Micro-B Connectors

USB 3.0 kuj tau qhia txog Micro-B cable plug tshiab. Cov ntsaws no muaj tus qauv USB 1.x/2.0 Micro-B cable plug, nrog rau ntxiv 5-pin plug "stacked" hauv nws. Qhov no tso cai rau cov khoom siv nrog USB 3.0 Micro-B chaw nres nkoj khiav ntawm USB 2.0 nrawm ntawm USB 2.0 Micro-B cables.

Powered-B Connectors

USB 3.0 Powered-B connectors muaj ob lub pins ntxiv rau lub zog thiab hauv av nkag rau lub cuab yeej.

USB 3.1 yog dab tsi?

tsim

USB 3.1 yog qhov tseeb version ntawm USB tus qauv, thiab nws yog ib qho loj. Nws tau txais ntau yam zoo nkauj uas ua rau nws nrawm dua thiab txhim khu kev qha ntau dua li nws cov neeg ua ntej. Nws rov qab siv tau nrog USB 3.0 thiab USB 2.0, yog li koj tsis tas yuav txhawj xeeb txog kev yuav khoom kho vajtse tshiab.

Dab tsi Txawv?

USB 3.1 muaj ob hom kev hloov pauv sib txawv:

• SuperSpeed, uas yog 5 Gbit / s cov ntaub ntawv qhia tus nqi tshaj 1 txoj kab siv 8b / 10b encoding (zoo 500 MB / s). Qhov no yog tib yam li USB 3.0.
• SuperSpeed ​​+, uas yog 10 Gbit / s cov ntaub ntawv tus nqi tshaj 1 txoj kab siv 128b / 132b encoding (zoo 1212 MB / s). Qhov no yog hom tshiab thiab nws zoo nkauj heev.

Qhov no txhais li cas rau kuv?

Yeej, USB 3.1 yog nrawm dua thiab txhim khu kev qha ntau dua li nws cov neeg ua ntej. Koj yuav tuaj yeem hloov cov ntaub ntawv ntawm qhov nrawm txog 1212 MB / s, uas yog qhov nrawm nrawm heev. Thiab txij li nws rov qab sib xws, koj tsis tas yuav txhawj xeeb txog kev yuav khoom kho vajtse tshiab. Yog li mus tom ntej thiab hloov kho mus rau USB 3.1 - koj cov ntaub ntawv yuav ua tsaug rau koj!

Nkag siab txog USB 3.2

USB 3.2 yog dab tsi?

USB 3.2 yog qhov tseeb version ntawm USB tus qauv, uas yog siv los txuas cov khoom siv rau cov khoos phis tawj. Nws yog kev hloov kho dua tshiab los ntawm cov ntawv dhau los, USB 3.1, thiab nws muab cov ntaub ntawv hloov pauv sai dua thiab txhim kho kev sib raug zoo nrog USB cables uas twb muaj lawm.

Cov txiaj ntsig ntawm USB 3.2 yog dab tsi?

USB 3.2 muaj ntau yam txiaj ntsig, suav nrog:

• Kev hloov cov ntaub ntawv ceev dua - USB 3.2 muab ob npaug ntawm bandwidth ntawm USB-C cables uas twb muaj lawm, tso cai rau lawv ua haujlwm ntawm 10 Gbit / s (nce ntawm 5 Gbit / s) rau SuperSpeed ​​certified USB-C 3.1 Gen 1 cables, thiab 20 Gbit / s (nce ntawm 10 Gbit / s) rau SuperSpeed ​​+ certified USB-C 3.1 Gen 2 cables.

• Txhim kho kev sib raug zoo - USB 3.2 rov qab sib xws nrog USB 3.1 / 3.0 thiab USB 2.0, yog li koj tsis tas yuav txhawj xeeb txog teeb meem kev sib raug zoo.

• Yooj yim siv - USB 3.2 tau txais kev txhawb nqa nrog lub neej ntawd Windows 10 USB tsav tsheb thiab hauv Linux kernels 4.18 thiab txuas ntxiv mus, yog li nws yooj yim dua los teeb tsa thiab siv.

USB 3.2 ceev npaum li cas?

USB 3.2 yog super ceev! Nws muaj kev hloov ceev txog li 20 Gbit / s, uas txaus rau hloov mus ib ncig ntawm 2.4 GB ntawm cov ntaub ntawv ib ob. Qhov ntawd yog qhov nrawm txaus los hloov cov yeeb yaj kiab tag nrho hauv ob peb feeb xwb!

Cov khoom siv dab tsi txhawb USB 3.0?

USB 3.0 txhawb nqa los ntawm ntau yam khoom siv, suav nrog:

• Motherboards: Ntau lub motherboards tam sim no tuaj nrog USB 3.0 chaw nres nkoj, suav nrog cov los ntawm Asus, Gigabyte Technology, thiab Hewlett-Packard.

• Laptops: Ntau lub laptops tam sim no tuaj nrog USB 3.0 chaw nres nkoj, suav nrog cov los ntawm Toshiba, Sony, thiab Dell.

• Expansion cards: Yog tias koj lub motherboard tsis muaj USB 3.0 ports, koj tuaj yeem ntxiv lawv nrog USB 3.0 expansion card.

• Sab nraud hard drives: Ntau lub hard drive sab nraud tam sim no tuaj nrog USB 3.0 chaw nres nkoj, tso cai rau koj hloov cov ntaub ntawv ntawm qhov nrawm dua.

• Lwm yam khoom siv: Ntau lwm yam khoom siv, xws li xov tooj ntawm tes thiab lub koob yees duab digital, tam sim no tuaj nrog USB 3.0 chaw nres nkoj.

Yog li yog tias koj tab tom nrhiav kom hloov cov ntaub ntawv sai dua, USB 3.0 yog txoj hauv kev mus!

USB 3.0 ceev npaum li cas?

Theoretical Ceev

USB 3.0 cog lus tias yuav xob laim nrawm nrog qhov theoretical hloov ceev ntawm 5 gigabytes ib ob (Gbps). Qhov ntawd txhais tau tias koj tuaj yeem hloov cov yeeb yaj kiab HD, uas feem ntau yog nyob ib puag ncig 1.5GB, tsawg dua li ib thib ob.

Kev sim ntiaj teb tiag

Hauv lub ntiaj teb tiag tiag, txawm li cas los xij, nws tsis nrawm npaum li nws suab. Macworld tau ua qhov kev sim thiab pom tias cov ntaub ntawv 10GB tuaj yeem hloov mus rau lub hard drive siv USB 3.0 ntawm 114.2 Mbps, uas yog li 87 vib nas this (lossis ib feeb thiab ib nrab). Qhov ntawd tseem yog 10 npaug sai dua USB 2.0, yog li nws tsis dhau shabby!

xaus

Yog li, yog tias koj tab tom nrhiav kev hloov pauv sai, USB 3.0 yog koj thawj koom ruam zoo tshaj. Nws tsis yog nrawm npaum li nws tau cog lus tseg, tab sis nws tseem zoo nkauj darn ceev. Koj tuaj yeem hloov cov yeeb yaj kiab hauv flash thiab 10GB cov ntaub ntawv hauv ib feeb thiab ib nrab. Qhov ntawd yuav tsum tsim nyog rau kev hloov kho tshiab!

USB 2.0 vs 3.0: Qhov txawv yog dab tsi?

Hloov Ceev

Ah, cov lus nug uas muaj hnub nyoog: nws siv sijhawm ntev npaum li cas los hloov cov ntaub ntawv 10GB? Zoo, yog tias koj siv USB 2.0, koj nyob nraum tos ntev. Nws yuav siv sij hawm koj yuav luag tsib feeb, lossis 282 vib nas this, kom tau txais koj cov ntaub ntawv uas nws yuav tsum mus. Tab sis yog tias koj siv USB 3.0, koj tuaj yeem hnia cov tsib feeb ua tsaug! Koj yuav ua tiav ib feem ntawm lub sijhawm - 87 vib nas this, kom meej. Qhov ntawd yog 225% nrawm dua li USB 2.0!

Them ceev

Thaum nws los them koj cov khoom siv, USB 3.0 yog tus yeej meej. Nws tuaj yeem xa yuav luag ob npaug ntawm qhov tso zis ntawm USB 2.0, nrog qhov siab tshaj plaws ntawm 0.9 A piv rau 0.5 A. Yog li yog tias koj tab tom nrhiav kom them sai dua, USB 3.0 yog txoj hauv kev mus.

Cov kab hauv qab

Thaum kawg ntawm hnub, USB 3.0 yog tus yeej meej thaum nws los txog rau kev hloov cov ntaub ntawv thiab them koj cov khoom siv. Nws nrawm dua, ua haujlwm ntau dua, thiab yuav txuag koj lub sijhawm ntau. Yog li yog tias koj tab tom nrhiav hloov kho koj qhov kev sib txuas USB, USB 3.0 yog txoj hauv kev mus!

Yuav Qhia Li Cas Yog tias USB yog 3.0

Txheeb xyuas USB 3.0 los ntawm Xim

Feem ntau cov tuam ntxhab ua kom yooj yim qhia yog tias USB 3.0 yog xim ntawm qhov chaw nres nkoj. Nws feem ntau yog xiav, yog li koj tsis tuaj yeem nco nws! Tej zaum koj kuj yuav pom cov npe SS (rau "SuperSpeed") luam tawm ntawm lub cable lossis ze ntawm qhov chaw nres nkoj.

Hom kev sib txuas ntawm USB 3.0

Muaj plaub hom kev sib txuas USB 3.0 muaj hnub no:

• USB Hom-A - zoo li koj tus qauv USB txuas. Nws yog xiav kom paub qhov txawv ntawm USB cov qauv ua ntej.
• USB Hom B - tseem hu ua USB 3.0 Standard-B, cov no yog square-zoo li nyob rau hauv cov duab thiab feem ntau siv rau cov tshuab luam ntawv thiab lwm yam khoom loj.
• USB Micro-A - cov no nyias thiab zoo li lawv muaj ob ntu. Lawv feem ntau siv los txuas smartphones thiab lwm yam khoom siv nqa tau yooj yim.
• USB Micro-B - zoo li USB Micro-A hom, nrog rau nyias thiab ob feem tsim. Lawv tau sib xws nrog Micro-A receptacles thiab tseem siv rau cov smartphones thiab cov khoom siv me me.

Compatibility nrog Cov Ports Laus

Qee cov khoom siv, cables, lossis adapters nrog cov chaw nres nkoj qub tuaj yeem siv tau nrog USB 3.0 receptacles, tab sis nws nyob ntawm hom connector. Nov yog phau ntawv qhia ceev:

• Micro-A thiab B tsuas yog siv tau nrog USB 3.0 Micro-AB receptacles.
• USB 2.0 Micro-A plugs tau tshaj USB 3.0 Micro-AB receptacles.

Txhawm rau kom tau txais tus nqi xa tawm sai tshaj plaws, ob qho khoom siv uas koj xav txuas yuav tsum muaj kev txhawb nqa rau USB 3.0.

Ceev dua USB Standards

Nyob rau hauv xyoo tas los no, cov qauv USB ceev tau raug tso tawm. USB 3.1 (tseem hu ua SuperSpeed ​​+) muaj qhov theoretical ceev ntawm 10 Gbps, thiab USB 3.2 muaj qhov theoretical siab tshaj plaws ceev ntawm 20 Gbps. Yog li yog tias koj tab tom nrhiav qhov tseeb thiab zoo tshaj plaws, koj paub tias yuav nrhiav dab tsi!

xaus

Hauv kev xaus, USB 3 yog ib txoj hauv kev zoo los hloov cov ntaub ntawv sai thiab yooj yim. Nrog nws rov qab sib raug zoo, koj tuaj yeem txuas txhua yam khoom siv USB rau txhua qhov chaw nres nkoj thiab tseem tau txais tib yam ceev. USB-C yog qhov tseeb version ntawm USB, muab txawm tias ceev ceev thiab ntau tus pins rau kev them nyiaj zoo dua. Yog li, yog tias koj tab tom nrhiav hloov kho koj cov ntaub ntawv hloov pauv kev ua si, USB 3 yog txoj hauv kev mus!

Nyob zoo, Kuv yog Kim, niam thiab ib tus neeg nyiam nres nrog keeb kwm yav dhau los hauv kev tshaj tawm thiab kev txhim kho lub vev xaib. Kuv muaj kev mob siab rau kev kos duab thiab kev ua yeeb yam, thiab tam sim no kuv tab tom dhia taub hau ua ntej mus rau hauv lub ntiaj teb nres. Nrog rau kuv qhov blog, Kuv tabtom qhia kuv cov kev kawm nrog koj.