{"id":14027,"date":"2025-08-05T13:34:29","date_gmt":"2025-08-05T09:34:29","guid":{"rendered":"https:\/\/droneandcam.com\/post\/sony-a7c-sd-card-speed-capacity-and-reliability\/"},"modified":"2025-12-06T00:59:49","modified_gmt":"2025-12-05T20:59:49","slug":"sony-a7c-sd-card-speed-capacity-and-reliability","status":"publish","type":"post","link":"https:\/\/droneandcam.com\/en\/post\/sony-a7c-sd-card-speed-capacity-and-reliability\/","title":{"rendered":"Sony a7c SD card: speed, capacity and reliability"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\" id=\"bi7if177193\">Have you ever had a burst transfer speed issue or interruption while recording 4K with your Sony A7C? Choosing the right <a href=\"https:\/\/droneandcam.com\/en\/post\/comparison-of-the-best-sandisk-and-lexar-sd-cards-for-professional-photographers\/\">SD card<\/a> is not an option, it&#8217;s a necessity to get the most out of your mirrorless camera. In this article, we break down compatibility, UHS-I\/UHS-II speeds, V90 classes, and the ideal capabilities to ensure your Sony Alpha enjoys <strong>uncompromising performance<\/strong> \u2013 whether you&#8217;re shooting RAW, video, or need reliable storage in extreme conditions.  <\/p>\n\n<h2 class=\"wp-block-heading\" id=\"y76vs177197\">Summary<\/h2>\n\n<ol start=\"1\" id=\"1xgzu177199\" class=\"wp-block-list\">\n<li><a href=\"#compatibilite-carte-memoire-sony-a7c\"><u>Memory card compatibility with the Sony a7c<\/u><\/a><\/li>\n\n\n\n<li><a href=\"#normes-vitesse-cartes-sd\"><u>SD card standards and speeds for the Sony a7c<\/u><\/a><\/li>\n\n\n\n<li><a href=\"#choix-capacite-carte-memoire\"><u>Choosing the ideal memory card capacity<\/u><\/a><\/li>\n\n\n\n<li><a href=\"#optimisation-performances-fiabilite\"><u>Performance Optimization and Reliability<\/u><\/a><\/li>\n<\/ol>\n\n\n\n\n\n\n\n\n\n\n<div style=\"flex-wrap: wrap;justify-content: space-between;align-items: center;padding: 20px;border: 1px solid #ccc;border-radius: 10px;background-color: #f9f9f9;max-width: 800px;margin: 0 auto\">\n\n<!-- Card for SanDisk -->\n<div style=\"text-align: center;width: 30%;margin-bottom: 20px\">\n    <img decoding=\"async\" src=\"https:\/\/droneandcam.com\/wp-content\/uploads\/2025\/08\/71kJg5K7ujL._AC_SL1280_.avif\" alt=\"SanDisk 512 Go Extreme PRO\" style=\"width: 100%;max-width: 200px;border-radius: 10px\" \/>\n    <h3>SanDisk 128Go Extreme PRO V90<\/h3>\n    <p>Note : 4,8\/5<\/p>\n    <div style=\"color: #FFD700;font-size: 20px\">\n        \u2605 \u2605 \u2605 \u2605 \u2605\n    <\/div>\n    <a href=\"https:\/\/geni.us\/SezOdL7\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"margin-top: 10px;margin-bottom: 10px;padding: 10px 5%;width: auto;max-width: 100%;padding: 10px 20px;background-color: #ff9900;color: #fff;text-decoration: none;border-radius: 5px\">Acheter sur Amazon<\/a>\n<\/div>\n\n<!-- Card for Lexar -->\n<div style=\"text-align: center;width: 30%;margin-bottom: 20px\">\n    <img decoding=\"async\" src=\"https:\/\/droneandcam.com\/wp-content\/uploads\/2025\/08\/71wcw4Ms2XL._AC_SL1500_.avif\" alt=\"Lexar SILVER PRO\" style=\"width: 100%;max-width: 200px;border-radius: 10px\" \/>\n    <h3>Lexar 512 Go SILVER PRO<\/h3>\n    <p>Note : 4,6\/5<\/p>\n    <div style=\"color: #FFD700;font-size: 20px\">\n        \u2605 \u2605 \u2605 \u2605 \u2605\n    <\/div>\n    <a href=\"https:\/\/geni.us\/f3OaGk\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"margin-top: 10px;margin-bottom: 10px;padding: 10px 5%;width: auto;max-width: 100%;padding: 10px 20px;background-color: #ff9900;color: #fff;text-decoration: none;border-radius: 5px\">Acheter sur Amazon<\/a>\n<\/div>\n\n<!-- Card for Gigastone -->\n<div style=\"text-align: center;width: 30%;margin-bottom: 20px\">\n    <img decoding=\"async\" src=\"https:\/\/droneandcam.com\/wp-content\/uploads\/2025\/08\/51F2IcqgHrL._AC_SL1000_.avif\" alt=\"Gigastone Carte M\u00e9moire SDXC\" style=\"width: 100%;max-width: 200px;border-radius: 10px\" \/>\n    <h3>Gigastone Carte SDXC 256 Go<\/h3>\n    <p>Note : 4,7\/5<\/p>\n    <div style=\"color: #FFD700;font-size: 20px\">\n        \u2605 \u2605 \u2605 \u2605 \u2605\n    <\/div>\n    <a href=\"https:\/\/geni.us\/pPeOAN\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"margin-top: 10px;margin-bottom: 10px;padding: 10px 5%;width: auto;max-width: 100%;padding: 10px 20px;background-color: #ff9900;color: #fff;text-decoration: none;border-radius: 5px\">Acheter sur Amazon<\/a>\n<\/div>\n\n<\/div>\n\n\n\n\n<p class=\"wp-block-paragraph\">Sony a7c SD Card<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"compatibilite-carte-memoire-sony-a7c\">Memory card compatibility with the Sony a7c<\/h2>\n\n<p class=\"wp-block-paragraph\" id=\"w6lmr177213\">The Sony a7c accepts UHS-I AND UHS-II <a href=\"https:\/\/droneandcam.com\/en\/post\/best-sd-cards-for-canon-eos-2000d-2\/\">SD cards<\/a>, <a href=\"https:\/\/droneandcam.com\/en\/post\/differences-between-sdhc-sdxc-and-microsd-which-one-to-choose\/\">SDHC<\/a> (32 GB max) and SDXC (up to 2 TB) formats. Choosing the right memory <strong>optimizes photo and video performance<\/strong>, especially in burst or 4K. <\/p>\n\n<ul id=\"2lx7n177217\" class=\"wp-block-list\">\n<li>SDHC formats (up to 32 GB, 32-bit system) for <strong>basic use<\/strong><\/li>\n\n\n\n<li>SDXC (64GB to 2TB, 64-bit system) formats for <strong>4K video without fragmentation<\/strong><\/li>\n\n\n\n<li>UHS-I standard (max speed 104 MB\/s) <strong>suitable for the majority of photo needs<\/strong><\/li>\n\n\n\n<li>UHS-II standard (max speed 312 MB\/s) for <strong>extreme burst performance and fast transfers<\/strong><\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\" id=\"iswpm177234\">Let&#8217;s be honest, a poorly chosen card can quickly become a headache. The Sony a7c&#8217;s buffer stores about twenty RAW before saturation. In 4K, a minimum write speed of 100 Mbps is a must. Without it, the device pauses the recording, risking missing key moments. As a result, choosing <strong>a UHS-II card with V90 class<\/strong> avoids unpleasant surprises, especially if you are shooting a series of high-resolution shots or videos.    <\/p>\n\n<h2 class=\"wp-block-heading\" id=\"normes-vitesse-cartes-sd\">SD card standards and speeds for the Sony a7c<\/h2>\n\n<p class=\"wp-block-paragraph\" id=\"u3ynn177239\">The Sony a7c <strong>accepts both UHS-I and UHS-II standards<\/strong>. UHS-I reaches 104MB\/s, ideal for moderate burst photos. UHS-II doubles this speed, reaching 312 MB\/s, crucial for high-resolution videos or long RAW sequences.  <\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Characteristic<\/td><td>UHS-I<\/td><td>UHS-II<\/td><\/tr><tr><td>Compatibility with the Sony a7c<\/td><td>Yes<\/td><td>Yes<\/td><\/tr><tr><td>Maximum speed (read\/write)<\/td><td>Up to 104 MB\/s<\/td><td>Up to 312 MB\/s (V60) or 300+ MB\/s (V90)<\/td><\/tr><tr><td>Recommended minimum video class<\/td><td>V30 (200 Mbps)<\/td><td>V60 (300 Mbps) or V90 (600 Mbps)<\/td><\/tr><tr><td>Optimal 4K video usage<\/td><td>XAVC HS 4K (200 Mbps)<\/td><td>XAVC S-I 4K 30p (300 Mbps) or XAVC S-I 4K 50\/60p (600 Mbps)<\/td><\/tr><tr><td>Burst performance (a7c II)<\/td><td>Approximately 30 RAW shots before buffer saturation<\/td><td>Up to 70+ RAW shots with V90 before emptying required<\/td><\/tr><tr><td>Buffer Dump Time<\/td><td>~5-8 seconds after 30 RAW<\/td><td>~2-3 seconds after 70+ RAW with V90<\/td><\/tr><tr><td>Cost per GB (estimated)<\/td><td>\u20ac0.15 &#8211; \u20ac0.25<\/td><td>\u20ac0.20 &#8211; \u20ac0.40 (V60 to V90)<\/td><\/tr><tr><td>Recommended reliability<\/td><td>Prefer models resistant to shocks\/extreme conditions<\/td><td>Requirement for single location in a7c II<\/td><\/tr><tr><td>Legend: Data based on official Sony a7c\/a7c II specifications and common usage scenarios. Actual performance may vary depending on specific models and usage conditions. <\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-paragraph\" id=\"i8561177338\">Let&#8217;s be honest, the V30, V60, and V90 classes aren&#8217;t just numbers. They guarantee sustained write speeds for video: 30, 60 or 90 MB\/s minimum. For the Sony a7c, a V30 is enough in standard 4K (12.5 MB\/s). But if you push the sensor all the way, a V90 becomes essential. So, check your video bitrates before buying: <strong>an undersized card slows everything down<\/strong>, especially in 4K at 600 Mbps.    <\/p>\n\n<h2 class=\"wp-block-heading\" id=\"choix-capacite-carte-memoire\">Choosing the ideal memory card capacity<\/h2>\n\n<h3 class=\"wp-block-heading\" id=\"capacites-disponibles-analyse\">Available Capacity and Needs Analysis<\/h3>\n\n<p class=\"wp-block-paragraph\" id=\"p9en7177344\">Sony a7c compatible SD cards range from 32GB to 512GB, with SDHC (32GB max) and SDXC (64GB to 2TB) formats. The recommended minimum capacity depends on your usage, but <strong>64GB is often a good starting point<\/strong> for beginners. <\/p>\n\n<p class=\"wp-block-paragraph\" id=\"gd7l2177348\">Let&#8217;s be honest, a 128GB card can record about 2.8 hours of 4K video at 100Mbps. For RAW photos (about 500 by 64 GB), 64 GB is enough for a day of shooting. So, if you prefer videos or long sessions, opt for 256 GB or 512 GB. For travel or reporting, a large capacity avoids frequent changes, but <strong>multiply the cards to secure your data<\/strong>.   <\/p>\n\n<h3 class=\"wp-block-heading\" id=\"rapport-qualite-prix-capacite\">Value for money and practical considerations<\/h3>\n\n<p class=\"wp-block-paragraph\" id=\"ucgcz177353\">The price per gigabyte drops with high capacities, but a single 512 GB card costs more than a dozen 64 GB. So, for a tight budget, <strong>128GB offers a good balance between performance and cost<\/strong>, especially if you regularly back up to a computer. <\/p>\n\n<ul id=\"6nmen177357\" class=\"wp-block-list\">\n<li>Evaluate your capacity according to <strong>the use (photo\/bike) and duration of the sessions<\/strong><\/li>\n\n\n\n<li>Prioritize multiple medium capacity cards for <strong>redundancy and data management<\/strong><\/li>\n\n\n\n<li>Compare price per gigabyte to <strong>optimize investment<\/strong> over the long term<\/li>\n\n\n\n<li>Bring <strong>additional maps to avoid interruptions on the<\/strong> go<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\" id=\"03mfq177376\">A single card with a high capacity is convenient, but risky: if it fails, you lose everything. With multiple 128GB cards, you can divide risk and simplify backups. As a result, for professionals, it is often the preferred solution. For amateurs, a 256 GB card is more than enough, as long as you copy your files regularly. In short, <strong>adapt your strategy<\/strong> according to your needs and budget. Sony a7c SD Card    <\/p>\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" src=\"https:\/\/droneandcam.com\/wp-content\/uploads\/2025\/08\/61kkrFpaklL.avif\" alt=\"\" class=\"wp-image-79\" style=\"width:346px;height:auto\" srcset=\"https:\/\/droneandcam.com\/wp-content\/uploads\/2025\/08\/61kkrFpaklL.avif 1000w, https:\/\/droneandcam.com\/wp-content\/uploads\/2025\/08\/61kkrFpaklL-300x300.avif 300w, https:\/\/droneandcam.com\/wp-content\/uploads\/2025\/08\/61kkrFpaklL-150x150.avif 150w, https:\/\/droneandcam.com\/wp-content\/uploads\/2025\/08\/61kkrFpaklL-768x768.avif 768w, https:\/\/droneandcam.com\/wp-content\/uploads\/2025\/08\/61kkrFpaklL-12x12.avif 12w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n<h2 class=\"wp-block-heading\" id=\"optimisation-performances-fiabilite\">Performance Optimization and Reliability<\/h2>\n\n<h3 class=\"wp-block-heading\" id=\"performances-carte-memoire-situations\">Memory card performance in different situations<\/h3>\n\n<p class=\"wp-block-paragraph\" id=\"92vje177382\">Let&#8217;s be honest, card speed is critical for three specific cases: intensive bursting, fast transfers to the computer, and high-speed 4K video. As a result, a <strong>UHS-II V90 is a must for long sequences<\/strong>, while a V30 is enough for classic 4K. <\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Use<\/td><td>UHS-I Card<\/td><td>UHS-II Card<\/td><\/tr><tr><td>Burst photo (10 fps)<\/td><td>~30 RAW before buffer saturation<\/td><td>~70+ RAW with Quick Dump<\/td><\/tr><tr><td>Standard 4K video (100 Mbps)<\/td><td>Seamless compatible<\/td><td>Optimal performance<\/td><\/tr><tr><td>High-resolution 4K video (600 Mbps)<\/td><td>Not compatible<\/td><td>Requires V90<\/td><\/tr><tr><td>Transfer to computer<\/td><td>~5-8 seconds per GB<\/td><td>~2-3 seconds per GB with adapted drive<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-paragraph\" id=\"oty4n177437\">The Sony a7c&#8217;s buffer stores the shots before writing them to the card. A slow card slows everything down after 30 RAW. With a UHS-II V90, you can chain bursts without interruption. As a result, for sports or live events, this speed is a major asset. In short, if you miss key moments because of a sluggish card, this is where <strong>the difference between a V30 and a V90<\/strong> comes into play.    <\/p>\n\n<h3 class=\"wp-block-heading\" id=\"fiabilite-durabilite-cartes\">Reliability and durability of memory cards<\/h3>\n\n<p class=\"wp-block-paragraph\" id=\"gap2x177442\">Reliability depends on three factors: the quality of manufacture (recognized brand), the conditions of use (rain, dust, shocks), and the number of write\/read cycles. A durable card like the <a href=\"https:\/\/geni.us\/LoZZKB\" rel=\"noreferrer noopener\" target=\"_blank\"><u>Sony 512 GB Tough M Series UHS-II SDXC Memory Card<\/u><\/a> <strong>survives sudden drops or rain<\/strong>, which is useful outdoors. <\/p>\n\n<p class=\"wp-block-paragraph\" id=\"khxmi177448\">To <strong>prolong the life of your cards<\/strong>, always format them via the Sony a7c, never on a computer. Avoid removing them during access (indicator on) and protect them from shocks, water and extreme temperatures. So, store them in a hard case while traveling and back up your files regularly to avoid corruption.  <\/p>\n\n<p class=\"wp-block-paragraph\" id=\"0o462177452\">To get the most out of your Sony a7c, <strong>prioritize a UHS-II SD card with V90 class<\/strong>, especially if you are shooting bursts or filming in 4K. The right capacity and a reliable brand, such as SanDisk Extreme Pro or Sony Tough, avoid unpleasant surprises. Your next shot deserves a memory that follows\u2014because the perfect moment doesn&#8217;t wait.  <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Have you ever had a burst transfer speed issue or interruption while recording 4K with your Sony A7C? Choosing the right SD card is not an option, it&#8217;s a necessity to get the most out of your mirrorless camera. In this article, we break down compatibility, UHS-I\/UHS-II speeds, V90 classes, and the ideal capabilities to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4392,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[113,118],"tags":[],"class_list":["post-14027","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sd-card-en","category-sony-en"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Sony a7c SD card: speed, capacity and reliability - Drone &amp; Cam<\/title>\n<meta name=\"description\" content=\"The best Sony A7C SD CARDS: UHS-II\/V90, high capacity, and video\/photo performance to unlock the full potential of your mirrorless camera.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/droneandcam.com\/en\/post\/sony-a7c-sd-card-speed-capacity-and-reliability\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sony a7c SD card: speed, capacity and reliability\" \/>\n<meta property=\"og:description\" content=\"The best Sony A7C SD CARDS: UHS-II\/V90, high capacity, and video\/photo performance to unlock the full potential of your mirrorless camera.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/droneandcam.com\/en\/post\/sony-a7c-sd-card-speed-capacity-and-reliability\/\" \/>\n<meta property=\"og:site_name\" content=\"Drone &amp; 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