The new Sony a7R III mirrorless camera features Dual Memory Card Slots: card slot 1 is compatible with ultra-fast UHS-II SD memory cards while Card Slot 2 is compatible with UHS-I memory cards. If you want to shoot a 4K video with the Sony a7R III, a fast UHS-II SD memory card is a must. But NOT all UHS-II cards have excellent performance: the Write Speed matters and the Write Speed is the key (Not the Read Speed)! Memory Cards with faster Write Speeds will run much quicker than the slower ones. And, if you plan to shoot videos, stick to 64GB or 128GB (or larger) SDXC cards for the best video codex.
Below are the top recommended memory cards for Sony a7R III, just choose the one you need!
Recommended UHS-II SD Memory Cards for Sony a7RIII
The Sony SF-G UHS-II Cards are currently the world’s fastest SD memory cards, boasting ultra-fast maximum read speeds of up to 300 MB/s and maximum write speeds of up to 299 MB/s. These memory cards are ideal for video capture, including the recording of 4K, 3D, high frame rate (HFR), and Full HD video. The maximum write speed of up to 299 MB/s ensures a quick clearing of the buffer in between bursts of photos, hence improving the quality of your shooting experience. In addition, with a read speed of up to 300 MB/s, even big data, such as 4K video or a collection of high-resolution photos captured in rapid succession, may be transferred to a PC in a matter of seconds. When recording video, use SDXC cards with 64 or 128 gigabytes of storage space.
The SanDisk Extreme PRO SD UHS-II Cards can attain maximum read rates of up to 300 MB/s and maximum write speeds of up to 260 MB/s, making them ideal for recording 4K, Full HD, and 3D video. Additionally, these cards are capable of reading data at maximum speeds of up to 300 MB/s.
This memory card, which has a steel plating and supports 4K Ultra HD video, has a read speed of up to 300 MB/s and a write speed of up to 260 MB/s, making it simple to move huge files fast and effectively.
Although the Lexar Professional 2000x UHS-II SDXC card is in high demand, the company has already decided to stop producing it. It is capable of achieving read rates of up to 300 MB/s and write speeds of up to 260 MB/s at their utmost, respectively.
The Sony UHS-I SDXC Memory Card (Class 10/U3) is able to record 4K video in addition to providing increased data transfer speeds of up to 95 MB/s read and 90 MB/s write. These rates make the process of uploading huge files both rapid and simple.
Write speeds of up to 90 MB/s UHS Speed Class 3 (U3) recording speed are provided by the SanDisk Extreme PRO UHS-I SDXC Memory Card (V30), making it possible to record stutter-free 4K Ultra HD footage in high quality with accurate colors in the real world.