Amazon Basics 256GB microSDXC A2 U3 V30 (with SD Adapter)

Amazon Basics 256GB microSDXC with full-size adapter is a fast, durable memory card designed for 4K video, gaming, and app performance, offering up to 100 MB/s read speed and A2 app-class responsiveness.

This microSDXC card from Amazon Basics delivers large-capacity storage and performance tuned for cameras, smartphones, tablets, action cams, and handheld consoles. Engineered to meet UHS-I U3, V30, and A2 standards, it balances sustained video throughput with quick random access for apps. The kit includes a full-size SD adapter to work with laptops and older cameras, and structural protections that help it withstand travel and outdoor use.

How will this card improve 4K and high-bitrate video recording?

The card supports UHS-I U3 and Video Speed Class V30, which provides a minimum sustained write speed suitable for many 4K workflows and high-bitrate Full HD capture. That reduces dropped frames and buffering when shooting continuous footage on compatible devices.

• V30-rated minimum sustained write speed for smooth 4K recording
• Up to 100 MB/s read speed for fast offload to computers
• Reliable burst photography and time-lapse recording
• Included SD adapter for direct transfer with card readers

Will it run apps and load games faster on mobile devices?

Yes — the A2 application performance class is optimized for quicker random reads and writes, so apps installed on the card launch and run more responsively than with standard microSD cards. That makes it a solid option for Android devices and portable gaming systems that support expandable storage.

• A2-certified for improved app launch and multitasking
• Optimized for game data and app caches to reduce stutters
• Use with devices that support microSD app storage for best results
• Check device compatibility, e.g., compatible with Nintendo Switch (not Switch 2)

How durable is the card for travel and outdoor use?

The Amazon Basics microSDXC is built to tolerate the conditions commonly encountered on trips and field shoots. It carries protections against water ingress, shocks, X-rays, magnetic fields, and a wide operating-temperature range to keep files safe in many environments.

• IPX6 water-resistance rating for exposure to heavy spray
• Shock-resistant design that withstands drops and impacts
• Protected from X-rays and magnetic interference during travel
• Rated for operation between −10°C and +80°C for extreme climates

How much usable space will I actually get from 256GB?

Label capacity and usable space differ because operating systems format storage with binary/decimal conventions. A 256GB nominal card provides roughly 232GB or more of usable capacity after formatting, leaving plenty of room for high-resolution photos, videos, and apps.

• 256GB label yields approximately ≥232GB usable space after formatting
• Stores thousands of photos, hours of HD/4K video, or many apps
• Consider larger capacities if you record prolonged 4K footage
• Always verify your device's maximum supported microSD capacity

Who is this for? Photographers, vloggers, drone pilots, mobile gamers, and travelers who need a dependable balance of sustained video write speed and app responsiveness will benefit from this Amazon Basics card. It’s ideal for users who want the convenience of a full-size adapter and ruggedized hardware for everyday carry and outdoor shooting, provided their device supports microSDXC and the card classes listed above.