{"id":1382,"date":"2025-09-29T18:17:46","date_gmt":"2025-09-29T16:17:46","guid":{"rendered":"https:\/\/www.fixmajster.sk\/?p=1382"},"modified":"2025-09-29T18:17:48","modified_gmt":"2025-09-29T16:17:48","slug":"usb-porty-generacie-a-thunderbolt-co-by-si-mal-vediet","status":"publish","type":"post","link":"https:\/\/www.fixmajster.sk\/index.php\/2025\/09\/29\/usb-porty-generacie-a-thunderbolt-co-by-si-mal-vediet\/","title":{"rendered":"USB porty, gener\u00e1cie a Thunderbolt: \u010do by si mal vedie\u0165"},"content":{"rendered":"\n

<\/h2>\n\n\n\n

Na prv\u00fd poh\u013ead sa m\u00f4\u017ee zda\u0165, \u017ee USB je jednoduch\u00fd \u0161tandard: zasunie\u0161 k\u00e1bel a funguje to. V skuto\u010dnosti je v\u0161ak situ\u00e1cia podstatne komplikovanej\u0161ia. USB m\u00e1 nieko\u013eko r\u00f4znych fyzick\u00fdch konektorov, nieko\u013eko gener\u00e1ci\u00ed protokolov a cel\u00e9 spektrum funkci\u00ed \u2013 od prenosu d\u00e1t, cez nap\u00e1janie a\u017e po prenos obrazu a zvuku. Do toho sa prid\u00e1va aj pr\u00edbuzn\u00e1 technol\u00f3gia Thunderbolt, ktor\u00e1 vyu\u017e\u00edva rovnak\u00fd konektor, ale pon\u00faka vy\u0161\u0161\u00ed v\u00fdkon a in\u00e9 mo\u017enosti.<\/p>\n\n\n\n

Tvar konektora \u2260 r\u00fdchlos\u0165<\/h3>\n\n\n\n

Jedna z najv\u00e4\u010d\u0161\u00edch myln\u00fdch predst\u00e1v je, \u017ee ozna\u010denie USB-A alebo USB-C hovor\u00ed nie\u010do o r\u00fdchlosti. Nie je to tak. Tieto n\u00e1zvy popisuj\u00fa iba fyzick\u00fd tvar konektora<\/strong>. USB-A je klasick\u00fd ploch\u00fd konektor, ktor\u00fd pozn\u00e1me u\u017e dve desa\u0165ro\u010dia, zatia\u013e \u010do USB-C je nov\u00fd, obojstrann\u00fd a kompaktnej\u0161\u00ed \u0161tandard. To, ak\u00e9 r\u00fdchlosti \u010di nap\u00e1janie dok\u00e1\u017ee port pon\u00faknu\u0165, z\u00e1vis\u00ed od gener\u00e1cie USB, ktor\u00fa podporuje, a od schopnost\u00ed zariadenia.<\/p>\n\n\n\n

Gener\u00e1cie USB<\/h3>\n\n\n\n

USB sa vyv\u00edjalo postupne. USB 2.0 umo\u017e\u0148ovalo prenosy do 480 Mbps, USB 3.0 a 3.1 zv\u00fd\u0161ili r\u00fdchlos\u0165 na nieko\u013eko gigabitov za sekundu, a USB 3.2 prinieslo a\u017e 20 Gbps. Najnov\u0161ia gener\u00e1cia \u2013 USB4<\/strong> \u2013 je postaven\u00e1 v\u00fdhradne na USB-C konektore a podporuje prenosy a\u017e do 40 Gbps. V\u00fdhodou je aj lep\u0161ia spr\u00e1va v\u00fdkonu a kompatibilita s in\u00fdmi technol\u00f3giami.<\/p>\n\n\n\n

Probl\u00e9mom je, \u017ee ozna\u010denia verzi\u00ed (USB 3.0, USB 3.1 Gen 1, USB 3.2 Gen 2×2 at\u010f.) boli nato\u013eko zm\u00e4to\u010dn\u00e9, \u017ee sa od nich up\u00fa\u0161\u0165a. V\u00fdrobcovia teraz rad\u0161ej priamo uv\u00e1dzaj\u00fa r\u00fdchlos\u0165 prenosu \u2013 napr\u00edklad \u201e10 Gbps\u201c \u2013 \u010do je pre pou\u017e\u00edvate\u013ea ove\u013ea jasnej\u0161ie.<\/p>\n\n\n\n

USB-C a jeho mo\u017enosti<\/h3>\n\n\n\n

USB-C je viac ne\u017e len nov\u00fd tvar konektora. Podporuje toti\u017e technol\u00f3gie, ktor\u00e9 predch\u00e1dzaj\u00face konektory nezvl\u00e1dali:<\/p>\n\n\n\n

    \n
  • USB Power Delivery (USB-PD)<\/strong> \u2013 \u0161tandardizovan\u00e9 nab\u00edjanie s v\u00fdkonom a\u017e do 240 W, v\u010faka \u010domu je mo\u017en\u00e9 cez USB-C nabi\u0165 nielen smartf\u00f3ny, ale aj notebooky \u010di monitory.<\/li>\n\n\n\n
  • DisplayPort Alternate Mode (DP Alt Mode)<\/strong> \u2013 prenos obrazu a zvuku cez USB-C k\u00e1bel, tak\u017ee m\u00f4\u017ee\u0161 notebook pripoji\u0165 k monitoru jedn\u00fdm k\u00e1blom bez potreby HDMI alebo DisplayPortu.<\/li>\n\n\n\n
  • Obojsmern\u00fd prenos d\u00e1t<\/strong> \u2013 USB-C je navrhnut\u00fd tak, aby fungoval symetricky, \u010di\u017ee smer prenosu nie je obmedzen\u00fd.<\/li>\n<\/ul>\n\n\n\n

    Thunderbolt: vy\u0161\u0161ia liga<\/h3>\n\n\n\n

    Popri USB existuje aj Thunderbolt<\/strong>, technol\u00f3gia vyv\u00edjan\u00e1 spolo\u010dnos\u0165ami Intel a Apple. Vyu\u017e\u00edva rovnak\u00fd USB-C konektor, ale poskytuje pr\u00edsnej\u0161ie certifik\u00e1cie a \u0161tandardy v\u00fdkonu. Thunderbolt 3 a Thunderbolt 4 priniesli r\u00fdchlosti a\u017e 40 Gbps, podporu pre viacer\u00e9 displeje a vysok\u00fd v\u00fdkon pre extern\u00e9 zariadenia, ako s\u00fa grafick\u00e9 karty \u010di r\u00fdchle \u00falo\u017eisk\u00e1.<\/p>\n\n\n\n

    Najnov\u0161ia verzia, Thunderbolt 5<\/strong>, zdvojn\u00e1sobuje priepustnos\u0165 na 80 Gbps v obojsmernom re\u017eime a prin\u00e1\u0161a mo\u017enos\u0165 dynamicky presmerova\u0165 \u0161\u00edrku p\u00e1sma a\u017e do 120 Gbps jedn\u00fdm smerom, \u010do je ide\u00e1lne pre pripojenie monitorov s ve\u013emi vysok\u00fdm rozl\u00ed\u0161en\u00edm a obnovovacou frekvenciou.<\/p>\n\n\n\n

    Re\u0165az je tak\u00e1 siln\u00e1, ako jej najslab\u0161\u00ed \u010dl\u00e1nok<\/h3>\n\n\n\n

    Aj ke\u010f zariadenie alebo port podporuje vysok\u00e9 r\u00fdchlosti, v\u017edy je d\u00f4le\u017eit\u00e9 myslie\u0165 na cel\u00fd re\u0165azec: port v po\u010d\u00edta\u010di, port v zariaden\u00ed a k\u00e1bel medzi nimi. Ak jeden z t\u00fdchto \u010dl\u00e1nkov nedosahuje parametre, prenos sa prisp\u00f4sob\u00ed tomu najslab\u0161iemu. Preto je ve\u013emi \u010dast\u00fdm probl\u00e9mom pr\u00e1ve k\u00e1bel<\/strong> \u2013 nie ka\u017ed\u00fd k\u00e1bel USB-C je rovnak\u00fd. Niektor\u00e9 podporuj\u00fa len nab\u00edjanie, in\u00e9 len ni\u017e\u0161ie prenosov\u00e9 r\u00fdchlosti.<\/p>\n\n\n\n

    Bud\u00facnos\u0165 USB a Thunderboltu<\/h3>\n\n\n\n

    V bud\u00facnosti sa o\u010dak\u00e1va, \u017ee USB a Thunderbolt sa e\u0161te viac zbl\u00ed\u017eia. USB4 a Thunderbolt 4 s\u00fa u\u017e v praxi kompatibiln\u00e9 a smeruj\u00fa k jednotn\u00e9mu ekosyst\u00e9mu, kde bude jeden typ konektora a k\u00e1blu sta\u010di\u0165 na v\u0161etko \u2013 od prenosu d\u00e1t, cez nap\u00e1janie a\u017e po obraz a zvuk.<\/p>\n\n\n\n

    Pre pou\u017e\u00edvate\u013eov to znamen\u00e1 menej chaosu a viac univerz\u00e1lnosti. St\u00e1le v\u0161ak zost\u00e1va d\u00f4le\u017eit\u00e9 \u010d\u00edta\u0165 \u0161pecifik\u00e1cie, preto\u017ee nie ka\u017ed\u00fd USB-C port alebo k\u00e1bel poskytne rovnak\u00fd v\u00fdkon.<\/p>\n\n\n\n

    Zdroj: Wired<\/p>\n","protected":false},"excerpt":{"rendered":"

    Na prv\u00fd poh\u013ead sa m\u00f4\u017ee zda\u0165, \u017ee USB je jednoduch\u00fd \u0161tandard: zasunie\u0161 k\u00e1bel a funguje to. V skuto\u010dnosti je v\u0161ak situ\u00e1cia podstatne komplikovanej\u0161ia. USB m\u00e1 nieko\u013eko r\u00f4znych fyzick\u00fdch konektorov, nieko\u013eko gener\u00e1ci\u00ed protokolov a","protected":false},"author":3,"featured_media":1383,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[35],"class_list":["post-1382","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-info","tag-usb-usbc-usb4-thunderbolt-technologie-datarates-nabijanie-displayport-powerdelivery-konektory-hardware-it-techblog-inovacie"],"_links":{"self":[{"href":"https:\/\/www.fixmajster.sk\/index.php\/wp-json\/wp\/v2\/posts\/1382","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fixmajster.sk\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fixmajster.sk\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fixmajster.sk\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fixmajster.sk\/index.php\/wp-json\/wp\/v2\/comments?post=1382"}],"version-history":[{"count":1,"href":"https:\/\/www.fixmajster.sk\/index.php\/wp-json\/wp\/v2\/posts\/1382\/revisions"}],"predecessor-version":[{"id":1384,"href":"https:\/\/www.fixmajster.sk\/index.php\/wp-json\/wp\/v2\/posts\/1382\/revisions\/1384"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fixmajster.sk\/index.php\/wp-json\/wp\/v2\/media\/1383"}],"wp:attachment":[{"href":"https:\/\/www.fixmajster.sk\/index.php\/wp-json\/wp\/v2\/media?parent=1382"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fixmajster.sk\/index.php\/wp-json\/wp\/v2\/categories?post=1382"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fixmajster.sk\/index.php\/wp-json\/wp\/v2\/tags?post=1382"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}