Une histoire de capacit\u00e9<\/span><\/i><\/b><\/p>\n

SD<\/b>
\nLe format SD est le plus classique. Il est \u00e9galement appel\u00e9 SDSC pour SC \u00ab standard capacity \u00bb. Le syst\u00e8me de fichiers est ici le FAT16. Il est compatible avec tous les lecteurs SD. La capacit\u00e9 maximale est 2 Go.<\/p>\n

SDHC<\/b>
\nLe format SDHC, pour \u00ab High Capacity \u00bb, est la premi\u00e8re \u00e9volution du format SD. Le syst\u00e8me de fichiers est ici le FAT32. Sa capacit\u00e9 est de 2 Go minimum et 32 Go maximum. Les lecteurs sont tr\u00e8s souvent compatibles avec ce format.<\/p>\n

SDXC<\/b>
\nLe format SDXC, pour Extended Capacity, est la seconde et derni\u00e8re \u00e9volution \u00e0 ce jour. Sa capacit\u00e9 varie de 32 Go \u00e0 2 To, mais il n\u2019existe pas de carte avec une capacit\u00e9 sup\u00e9rieure \u00e0 256 Go. Le syst\u00e8me de fichier est ici l\u2019exFAT qui offre d\u2019excellentes performances. Les produits compatibles sont encore peu courants.<\/span><\/p>\n

Une histoire de vitesse<\/span><\/i><\/b><\/p>\n

Les sigles de classe sont de plusieurs types. Il s\u2019agit soit d\u2019un chiffre pair entour\u00e9 d\u2019un rond (la classe), soit d\u2019un chiffre impair dans un \u00ab\u00a0U\u00a0\u00bb, soit un nombre \u00e0 deux chiffres avec un \u00ab\u00a0x\u00a0\u00bb. Dans ce dernier cas, le \u00ab\u00a0x\u00a0\u00bb remplace une unit\u00e9 \u00e9quivalente de 150 Ko\/s. Par exemple un taux de 13x correspond \u00e0 13 fois 150 Ko\/s, soit 2 Mo\/s. Tous indiquent la m\u00eame information : le d\u00e9bit en \u00e9criture minimum garanti.<\/p>\n

Classe 2<\/b>
\nCeci est la classe minimum d\u2019une carte SD. Elle garantit un d\u00e9bit de 2 Mo\/s. Cela correspond \u00e0 un taux 13x. Ces cartes ne sont utiles que pour enregistrer les vid\u00e9os en 480p.<\/p>\n

Classe 4<\/b>
\nLa seconde classe de carte SD garantit un d\u00e9bit en \u00e9criture de 4 Mo\/s. L\u2019\u00e9quivalence en taux est 26x. Ces cartes sont utiles pour l\u2019enregistrement en 720p.<\/p>\n

Classe 6<\/b>
\nLa troisi\u00e8me classe de carte SD propose un d\u00e9bit en \u00e9criture de 6 Mo\/s minimum. L\u2019\u00e9quivalence en taux est 40x. Ces cartes servent pour enregistrer les vid\u00e9os en 1080p.<\/p>\n

Classe 10 \/ U1<\/b>
\nLa quatri\u00e8me classe de carte SD garantit un d\u00e9bit en \u00e9criture de 10 Mo\/s, soit un taux de transfert de 66x. Notez que la classe 10, du format SD et SDHC, et la classe U1 (ou UHS 1), du format SDXC, offrent la m\u00eame garantie. Elles servent pour l\u2019enregistrement en RAW, en AVCHD.<\/p>\n

Classe U3<\/b>
\nLa derni\u00e8re classe propos\u00e9e ici, de type UHS, concerne le format SDXC. Elle propose un d\u00e9bit minimum de 30 Mo\/s. Elle est parfaite pour encaisser le flux de donn\u00e9es impos\u00e9 par un enregistrement en 4K.<\/p>\n

Cnet<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Le choix de la carte m\u00e9moire SD ou micro SD est important. Pour cela, il faut d\u00e9crypter et comprendre les […]<\/p>\n","protected":false},"author":895,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-761","post","type-post","status-publish","format-standard","hentry","category-les_infos_geek"],"_links":{"self":[{"href":"https:\/\/total-depannage.com\/wp-json\/wp\/v2\/posts\/761","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/total-depannage.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/total-depannage.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/total-depannage.com\/wp-json\/wp\/v2\/users\/895"}],"replies":[{"embeddable":true,"href":"https:\/\/total-depannage.com\/wp-json\/wp\/v2\/comments?post=761"}],"version-history":[{"count":0,"href":"https:\/\/total-depannage.com\/wp-json\/wp\/v2\/posts\/761\/revisions"}],"wp:attachment":[{"href":"https:\/\/total-depannage.com\/wp-json\/wp\/v2\/media?parent=761"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/total-depannage.com\/wp-json\/wp\/v2\/categories?post=761"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/total-depannage.com\/wp-json\/wp\/v2\/tags?post=761"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}