{"product_id":"sony-cfexpress-type-a-memory-card-640gb-high-speed-storage","title":"Sony CFexpress Type A Memory Card 640GB - High-Speed Storage","description":"\u003cp\u003eIn this review the Sony CFexpress Type A 640GB card is evaluated as a high-capacity, high-performance option for content creators who need reliable, sustained throughput for high-resolution, high bitrate video. The bottom line: it suits users seeking dependable write performance and effective heat management during long recording sessions; the card delivers up to \u003cstrong\u003e800MB\/s read\u003c\/strong\u003e and \u003cstrong\u003e700MB\/s write\u003c\/strong\u003e speeds and a large 640GB capacity that reduces card swaps on long shoots.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast read speed:\u003c\/strong\u003e Up to 800MB\/s read enables quick offloads and smooth playback of high-resolution footage when transferring large files to a workstation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh write throughput:\u003c\/strong\u003e Up to 700MB\/s write supports sustained, high bitrate recording without buffering interruptions for compatible cameras and recorders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge capacity:\u003c\/strong\u003e The 640GB size offers extended recording time for long shoots and high resolution files, reducing the need to change cards frequently.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal design:\u003c\/strong\u003e Effective heat dissipation helps maintain performance during extended high bitrate transfers and long recording sessions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged construction:\u003c\/strong\u003e TOUGH durability and resistance to impact, bending, dust and moisture provide confidence on location shoots and in adverse conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental protection:\u003c\/strong\u003e Built to resist humidity, X-ray, electrostatic charge and ultraviolet radiation for safer transport and storage.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe Sony CFexpress Type A 640GB card is aimed at professional and serious enthusiast photographers and videographers who record high resolution and high bitrate video or shoot burst RAW stills and need fast sustained write speeds and a large single-card capacity. It is also a good fit for users who value rugged hardware and predictable thermal behavior during long takes.\u003c\/p\u003e\u003cp\u003eThose on a strict budget or working with older cameras that do not support CFexpress Type A should look elsewhere for lower-cost or compatible SD\/CF solutions, since this card is intended for devices that can fully use its \u003cstrong\u003ehigh write speed\u003c\/strong\u003e.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVery high sequential read and write speeds suitable for high bitrate recording and fast transfers.\u003c\/li\u003e\n\u003cli\u003eLarge 640GB capacity minimizes card changes on long shoots or multi-hour sessions.\u003c\/li\u003e\n\u003cli\u003eDurable TOUGH design and multiple environmental protections increase reliability in field use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRequires a camera or reader that supports CFexpress Type A to use full performance.\u003c\/li\u003e\n\u003cli\u003eHigher capacity and performance can carry a premium price compared with lower speed cards.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSony\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForm Factor\u003c\/td\u003e\n\u003ctd\u003eCFexpress Type A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e640GB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRead Speed\u003c\/td\u003e\n\u003ctd\u003eUp to 800MB\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWrite Speed\u003c\/td\u003e\n\u003ctd\u003eUp to 700MB\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDurability\u003c\/td\u003e\n\u003ctd\u003eTOUGH impact, bending, dust and moisture resistant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironmental Resistance\u003c\/td\u003e\n\u003ctd\u003eHumidity, X-ray, electrostatic charge and UV resistant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Sony CFexpress Type A 640GB is a strong choice for professionals and demanding hobbyists who need sustained high write speeds and a large single-card capacity for uninterrupted high-resolution video or burst shooting. Its thermal design and rugged build make it a reliable investment for fieldwork, offering good value when paired with compatible equipment.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill this card work in my camera?\u003c\/strong\u003e\u003cbr\u003eIt will work only in cameras or readers that explicitly support CFexpress Type A; check device compatibility before purchasing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 640GB capacity suitable for long shoots?\u003c\/strong\u003e\u003cbr\u003eYes, 640GB provides extended recording time for high resolution, high bitrate video and reduces the frequency of card swaps.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does it handle heat during long recordings?\u003c\/strong\u003e\u003cbr\u003eThe card includes effective heat dissipation features to help sustain high bitrate transfers and reduce thermal throttling during extended use.\u003c\/p\u003e","brand":"Sony","offers":[{"title":"Default Title","offer_id":48613305778395,"sku":"B0BGQGHV5P","price":999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81V0HkJzCHL._AC_SL1500.jpg?v=1778584907","url":"https:\/\/gearmusthave.com\/products\/sony-cfexpress-type-a-memory-card-640gb-high-speed-storage","provider":"GearMustHave","version":"1.0","type":"link"}