SuperSpeed USB 20Gbps čili USB 3.2 Gen2x2 je tady. Na deskách i jako karta do PCIe ×4

1. 12. 2019

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Pokud sledujete hardwarové dění, tak asi víte, že v budoucnu bude uvedeno USB4, které bude vlastně představovat něco jako standardizaci Thunderboltu 3 od Intelu. Ovšem ještě předtím má přijít cosi jako mezigenerace USB 3.2 Gen2x2, což bude 20Gb/s port, navazující na dnešní standard USB 3.2 (či 3.1) Gen2 s rychlostí 10Gb/s. Na jaře jsme psali, že tyto dvojnásobně rychlé porty USB by se na trhu měly objevit koncem roku, čili nyní. A skutečně, do obchodů se teď dostává první hardware s řadičem, jenž USB 3.2 Gen2x2 (nebo také „SuperSpeed USB 20Gbps“, což je stravitelnější název) konečně podporuje.  

První SuperSpeed USB 20Gbps na přídavné kartě

Mezi prvním hardwarem s podporou je také řadič na přídavném adaptéru. Díky tomu si porty budete moci přidat do existujícího PC. Tento přídavný adaptér uvádí na trh Gigabyte. Jde o desktopovou kartu do slotu PCI Express ×4, nazvanou jednoduše Gigabyte USB 3.2 Gen2x2 Expansion Card (GC-USB3.2 GEN2X2).

Adaptér podle obrázku používá řadič ASMedia ASM3242, jenž asi bude na trhu dostupný jako první a nějakou dobu možná jediný (byl předveden letos na Computexu). Používá rozhraní PCI Express 3.0 ×4, takže pro optimální chod to bude chtít slot s linkami generace 3.0 (nebo nyní 4.0). Platformy Intel H110 a H310 nebo u AMD X470/B450 a starší mají sloty ×4 vyvedené z čipsetu jen s linkami PCIe 2.0, kde by asi mohl být výkon řadiče v I/O o něco omezený (PCI Express 2.0 ×4 dává jen 2 GB/s, tedy 16 Gb/s), ale pořád vyšší než u SuperSpeed USB 10Gbps (3.2 Gen2).

Gigabyte karta pcie SuperSpeed USB 20gbps Gigabyte USB 3.2 Gen2x2 Expansion Card (GC-USB3.2 GEN2X2)

Karta poskytuje jen jeden port, přičemž jde o malý typ C a přiveden je dozadu na záslepku. Na PCB není žádný vývod, kterým by se port dal vytáhnout na předek skříně. Zpětná kompatibilita jinak funguje, takže jsou podporována i starší zařízení včetně USB 3.0 a 2.0. Na snímku je vidět také dost napájecích komponent pro krmení připojených zařízení, ale nevíme přesně, kolik wattů umí adaptér dodat. Kdy se u nás karta objeví v prodeji, zatím není jasné, vyhledávače cen ji zatím neznají (cenu jinak neuvádí ani Gigabyte). Firma kartu také ještě nemá na webu, ovšem prvotní malá várka už údajně byla rozprodána (dle webu AnandTech) a další se chysají.

SuperSpeed USB 20Gbps mají i některé nové desky platformy X299 a TRX40

Tato karta není ovšem úplně první možností, jak se k podpoře SuperSpeed USB 20Gbps dostat. Trochu nám to uniklo, ale tuto výbavu už si nesou některé desky pro Threadrippery 3000, tedy tento týden vydané platformy TRX40 a také některé nové desky platformy Intel X299 pro procesory Cascade Lake-X (takže cenu za prvenství by zřejmě měly mít ty). I u desek jsou použité řadiče ASMedia ASM3242.

bitcoin_smenarna

ASRock TRX40 Taichi ASRock TRX40 Taichi

Na platformě Intel jsou takto vybavené MSI X299 Pro, X299 Pro 10G a MSI Creator X299 nebo u ASRocku X299 Steel Legend. Pro Threadrippery jsou to desky ASRock TRX40 Creator a TRX40 Taichi, MSI Creator TRX40 nebo Asus ROG Zenith II Extreme.

ASRock prezentuje SuperSpeed 20Gbps na desce TRX40 Taichi ASRock prezentuje SuperSpeed 20Gbps na desce TRX40 Taichi

Gen2x2: ve stínu USB4 a Thunderboltu 3, nebo užitečná technologie?

SuperSpeed USB 20Gbps je sice pomalejší než 40Gb/s Thunderbolt 3 nebo v budoucnu USB4, ale má jednu velkou výhodu: nepotřebuje tak drahou aktivní kabeláž. Má fungovat na běžných kabelech USB 3.1 s konektory typu C – za podmínky, že mají zapojené obě sady linek (což už využívá například DisplayPort alternate mode pro připojení monitorů). Také řadiče by měly být relativně jednoduché, komplexita PHY zhruba odpovídá toliko zdvojení oněch datových linek proti USB 3.1 Gen2. Využívání možností 20Gb/s USB bude tedy asi i v budoucnu pro vaši kapsu dostupnější a levnější, takže i po příchodu USB4 by mělo jít o užitečnou konektivitu a pravděpodobně bude dost zařízení používající tuto technologii místo USB4.

Galerie: Přehled verzí portů a konektorů rozhraní USB

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This helps the SDK to // select the correct creative if multiple are returned. // adsRequest.linearAdSlotWidth = prerollWidth; // adsRequest.linearAdSlotHeight = prerollHeight; adsRequest.nonLinearAdSlotWidth = 0; adsRequest.nonLinearAdSlotHeight = 0; adsLoader.requestAds(adsRequest); } function createAdDisplayContainer() { // We assume the adContainer is the DOM id of the element that will house // the ads. prerollDocument.getElementById('videoContent').style.display = 'none'; adDisplayContainer = new google.ima.AdDisplayContainer( prerollDocument.getElementById('adContainer'), videoContent); } function unmutePrerollAdvert() { adVolume = !adVolume; if (adVolume) { adsManager.setVolume(0.3); prerollDocument.getElementById('adMuteBtn').innerHTML = ''; } else { adsManager.setVolume(0); prerollDocument.getElementById('adMuteBtn').innerHTML = ''; } } function onAdsManagerLoaded(adsManagerLoadedEvent) { // Get the ads manager. const adsRenderingSettings = new google.ima.AdsRenderingSettings(); adsRenderingSettings.restoreCustomPlaybackStateOnAdBreakComplete = true; adsRenderingSettings.loadVideoTimeout = 12000; // videoContent should be set to the content video element. adsManager = adsManagerLoadedEvent.getAdsManager(videoContent, adsRenderingSettings); // Add listeners to the required events. adsManager.addEventListener(google.ima.AdErrorEvent.Type.AD_ERROR, onAdError); adsManager.addEventListener( google.ima.AdEvent.Type.CONTENT_PAUSE_REQUESTED, onContentPauseRequested); adsManager.addEventListener( google.ima.AdEvent.Type.CONTENT_RESUME_REQUESTED, onContentResumeRequested); adsManager.addEventListener( google.ima.AdEvent.Type.ALL_ADS_COMPLETED, onAdEvent); // Listen to any additional events, if necessary. adsManager.addEventListener(google.ima.AdEvent.Type.LOADED, onAdEvent); adsManager.addEventListener(google.ima.AdEvent.Type.STARTED, onAdEvent); adsManager.addEventListener(google.ima.AdEvent.Type.COMPLETE, onAdEvent); playAds(); } function playAds() { // Initialize the container. Must be done through a user action on mobile // devices. videoContent.load(); adDisplayContainer.initialize(); // setupDimensions(); try { // Initialize the ads manager. Ad rules playlist will start at this time. adsManager.init(1920, 1080, google.ima.ViewMode.NORMAL); // Call play to start showing the ad. Single video and overlay ads will // start at this time; the call will be ignored for ad rules. adsManager.start(); // window.addEventListener('resize', function (event) { // if (adsManager) { // setupDimensions(); // adsManager.resize(prerollWidth, prerollHeight, google.ima.ViewMode.NORMAL); // } // }); } catch (adError) { // An error may be thrown if there was a problem with the VAST response. // videoContent.play(); } } function onAdEvent(adEvent) { const ad = adEvent.getAd(); console.log('Preroll event: ' + adEvent.type); switch (adEvent.type) { case google.ima.AdEvent.Type.LOADED: if (!ad.isLinear()) { videoContent.play(); } prerollDocument.getElementById('adContainer').style.width = '100%'; prerollDocument.getElementById('adContainer').style.maxWidth = '640px'; prerollDocument.getElementById('adContainer').style.height = '360px'; break; case google.ima.AdEvent.Type.STARTED: window.addEventListener('scroll', onActiveView); if (ad.isLinear()) { intervalTimer = setInterval( function () { // Example: const remainingTime = adsManager.getRemainingTime(); // adsManager.pause(); }, 300); // every 300ms } prerollDocument.getElementById('adMuteBtn').style.display = 'block'; break; case google.ima.AdEvent.Type.ALL_ADS_COMPLETED: if (ad.isLinear()) { clearInterval(intervalTimer); } if (prerollLastError === 303) { playYtVideo(); } break; case google.ima.AdEvent.Type.COMPLETE: if (ad.isLinear()) { clearInterval(intervalTimer); } playYtVideo(); break; } } function onAdError(adErrorEvent) { console.log(adErrorEvent.getError()); prerollLastError = adErrorEvent.getError().getErrorCode(); if (!loadNext()) { playYtVideo(); } } function loadNext() { iinfoVastUrlIndex++; if (iinfoVastUrlIndex < iinfoVastUrls.length) { iinfoPrerollPosition.remove(); playPrerollAd(); } else { return false; } adVolume = 1; return true; } function onContentPauseRequested() { videoContent.pause(); } function onContentResumeRequested() { videoContent.play(); } function onActiveView() { if (prerollContainer) { const containerOffset = prerollContainer.getBoundingClientRect(); const windowHeight = window.innerHeight; if (containerOffset.top < windowHeight/1 && containerOffset.bottom > 0.0) { if (prerollPaused) { adsManager.resume(); prerollPaused = false; } return true; } else { if (!prerollPaused) { adsManager.pause(); prerollPaused = true; } } } return false; } function playYtVideo() { iinfoPrerollPosition.remove(); youtubeIframe.style.display = 'block'; youtubeIframe.src += '&autoplay=1&mute=1'; } }
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This helps the SDK to // select the correct creative if multiple are returned. // adsRequest.linearAdSlotWidth = outstreamWidth; // adsRequest.linearAdSlotHeight = outstreamHeight; adsRequest.nonLinearAdSlotWidth = 0; adsRequest.nonLinearAdSlotHeight = 0; adsLoader.requestAds(adsRequest); } function setupReplayScreen() { replayScreen.addEventListener('click', function () { iinfoOutstreamPosition.remove(); iinfoVastUrlIndex = 0; outstreamInit(); }); } /** * Sets the 'adContainer' div as the IMA ad display container. */ function createAdDisplayContainer() { // We assume the adContainer is the DOM id of the element that will house // the ads. outstreamDocument.getElementById('videoContent').style.display = 'none'; adDisplayContainer = new google.ima.AdDisplayContainer( outstreamDocument.getElementById('adContainer'), videoContent); } function unmuteAdvert() { adVolume = !adVolume; if (adVolume) { adsManager.setVolume(0.3); outstreamDocument.getElementById('adMuteBtn').innerHTML = ''; } else { adsManager.setVolume(0); outstreamDocument.getElementById('adMuteBtn').innerHTML = ''; } } /** * Loads the video content and initializes IMA ad playback. */ function playAds() { // Initialize the container. Must be done through a user action on mobile // devices. videoContent.load(); adDisplayContainer.initialize(); // setupDimensions(); try { // Initialize the ads manager. Ad rules playlist will start at this time. adsManager.init(1920, 1080, google.ima.ViewMode.NORMAL); // Call play to start showing the ad. Single video and overlay ads will // start at this time; the call will be ignored for ad rules. adsManager.start(); // window.addEventListener('resize', function (event) { // if (adsManager) { // setupDimensions(); // adsManager.resize(outstreamWidth, outstreamHeight, google.ima.ViewMode.NORMAL); // } // }); } catch (adError) { // An error may be thrown if there was a problem with the VAST response. // videoContent.play(); } } /** * Handles the ad manager loading and sets ad event listeners. * @param { !google.ima.AdsManagerLoadedEvent } adsManagerLoadedEvent */ function onAdsManagerLoaded(adsManagerLoadedEvent) { // Get the ads manager. const adsRenderingSettings = new google.ima.AdsRenderingSettings(); adsRenderingSettings.restoreCustomPlaybackStateOnAdBreakComplete = true; adsRenderingSettings.loadVideoTimeout = 12000; // videoContent should be set to the content video element. adsManager = adsManagerLoadedEvent.getAdsManager(videoContent, adsRenderingSettings); // Add listeners to the required events. adsManager.addEventListener(google.ima.AdErrorEvent.Type.AD_ERROR, onAdError); adsManager.addEventListener( google.ima.AdEvent.Type.CONTENT_PAUSE_REQUESTED, onContentPauseRequested); adsManager.addEventListener( google.ima.AdEvent.Type.CONTENT_RESUME_REQUESTED, onContentResumeRequested); adsManager.addEventListener( google.ima.AdEvent.Type.ALL_ADS_COMPLETED, onAdEvent); // Listen to any additional events, if necessary. adsManager.addEventListener(google.ima.AdEvent.Type.LOADED, onAdEvent); adsManager.addEventListener(google.ima.AdEvent.Type.STARTED, onAdEvent); adsManager.addEventListener(google.ima.AdEvent.Type.COMPLETE, onAdEvent); playAds(); } /** * Handles actions taken in response to ad events. * @param { !google.ima.AdEvent } adEvent */ function onAdEvent(adEvent) { // Retrieve the ad from the event. Some events (for example, // ALL_ADS_COMPLETED) don't have ad object associated. const ad = adEvent.getAd(); console.log('Outstream event: ' + adEvent.type); switch (adEvent.type) { case google.ima.AdEvent.Type.LOADED: // This is the first event sent for an ad - it is possible to // determine whether the ad is a video ad or an overlay. if (!ad.isLinear()) { // Position AdDisplayContainer correctly for overlay. // Use ad.width and ad.height. videoContent.play(); } outstreamDocument.getElementById('adContainer').style.width = '100%'; outstreamDocument.getElementById('adContainer').style.maxWidth = '640px'; outstreamDocument.getElementById('adContainer').style.height = '360px'; break; case google.ima.AdEvent.Type.STARTED: window.addEventListener('scroll', onActiveView); // This event indicates the ad has started - the video player // can adjust the UI, for example display a pause button and // remaining time. if (ad.isLinear()) { // For a linear ad, a timer can be started to poll for // the remaining time. intervalTimer = setInterval( function () { // Example: const remainingTime = adsManager.getRemainingTime(); // adsManager.pause(); }, 300); // every 300ms } outstreamDocument.getElementById('adMuteBtn').style.display = 'block'; break; case google.ima.AdEvent.Type.ALL_ADS_COMPLETED: if (ad.isLinear()) { clearInterval(intervalTimer); } if (outstreamLastError === 303) { if (isBanner) { renderBanner(); } else { replayScreen.style.display = 'flex'; } } break; case google.ima.AdEvent.Type.COMPLETE: // This event indicates the ad has finished - the video player // can perform appropriate UI actions, such as removing the timer for // remaining time detection. if (ad.isLinear()) { clearInterval(intervalTimer); } if (isBanner) { renderBanner(); } else { replayScreen.style.display = 'flex'; } break; } } /** * Handles ad errors. * @param { !google.ima.AdErrorEvent } adErrorEvent */ function onAdError(adErrorEvent) { // Handle the error logging. console.log(adErrorEvent.getError()); outstreamLastError = adErrorEvent.getError().getErrorCode(); if (!loadNext()) { renderBanner(); } } function renderBanner() { if (isBanner) { console.log('Outstream: Render Banner'); iinfoOutstreamPosition.innerHTML = ""; iinfoOutstreamPosition.style.height = "330px"; iinfoOutstreamPosition.appendChild(bannerDiv); } else { console.log('Outstream: Banner is not set'); } } function loadNext() { iinfoVastUrlIndex++; if (iinfoVastUrlIndex < iinfoVastUrls.length) { iinfoOutstreamPosition.remove(); outstreamInit(); } else { return false; } adVolume = 1; return true; } /** * Pauses video content and sets up ad UI. */ function onContentPauseRequested() { videoContent.pause(); // This function is where you should setup UI for showing ads (for example, // display ad timer countdown, disable seeking and more.) // setupUIForAds(); } /** * Resumes video content and removes ad UI. */ function onContentResumeRequested() { videoContent.play(); // This function is where you should ensure that your UI is ready // to play content. It is the responsibility of the Publisher to // implement this function when necessary. // setupUIForContent(); } function onActiveView() { if (outstreamContainer) { const containerOffset = outstreamContainer.getBoundingClientRect(); const windowHeight = window.innerHeight; if (containerOffset.top < windowHeight/1 && containerOffset.bottom > 0.0) { if (outstreamPaused) { adsManager.resume(); outstreamPaused = false; } return true; } else { if (!outstreamPaused) { adsManager.pause(); outstreamPaused = true; } } } return false; } let outstreamInitInterval; if (typeof cpexPackage !== "undefined") { outstreamInitInterval = setInterval(tryToInitializeOutstream, 100); } else { const wrapper = getWrapper(); if (wrapper) { let outstreamInitialized = false; window.addEventListener('scroll', () => { if (!outstreamInitialized) { const containerOffset = wrapper.getBoundingClientRect(); const windowHeight = window.innerHeight; if (containerOffset.top < windowHeight / 1 && containerOffset.bottom > 0.0) { outstreamInit(); outstreamInitialized = true; } } }); } } function tryToInitializeOutstream() { const wrapper = getWrapper(); if (wrapper) { const containerOffset = wrapper.getBoundingClientRect(); const windowHeight = window.innerHeight; if (containerOffset.top < windowHeight / 1 && containerOffset.bottom > 0.0) { if (cpexPackage.adserver.displayed) { clearInterval(outstreamInitInterval); outstreamInit(); } } } else { clearInterval(outstreamInitInterval); } } }
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