Lexar microSDXC 633x UHS-I/A2/U3/10 R100/W45MB (V30) 512GB

Lexar microSDXC 633x 512GB – UHS-I A2/U3 V30 card for 4K and Full‑HD capture

Capture and store high-resolution video and large photo libraries with the Lexar microSDXC 633x 512GB card. Designed for sports camcorders, tablets, and smartphones, this card supports 1080p Full‑HD, 3D, and 4K video recording while offering high read performance via UHS‑I technology.

Key features

• Premium memory solution for sports camcorders, tablets, and smartphones.
• Quickly captures, stores, plays back, and transfers media files including 1080p Full‑HD, 3D, and 4K video.
• Leverages UHS‑I technology for a transfer rating up to 633x (up to 95MB/s read); write speeds are lower.
• Provides estimates for media storage: stores more than 15 hours of HD video, 33,000 photos, or 28,000 songs (see notes).

Performance and compatibility

The card uses UHS‑I technology and a Class 10 rating to support high‑speed read operations. For the 512GB model specifically, Lexar lists it as SDXC, Class 10, UHS‑I (U3), A2, V30 with read speeds up to 95MB/s and write speeds up to 45MB/s. Speeds are based on internal testing and actual results may vary by device and usage.

Capacities and speed options

Storage estimates and test notes

Lexar provides storage examples to illustrate capacity. The card is described as being able to store more than 15 hours of HD video, 33,000 photos, or 28,000 songs. Note that these estimates are provided as general guidance.

* Up to 95MB/s read transfer; write speeds are lower. Speeds are based on internal testing and may vary by device, usage, and other factors. x = 150KB/s.
** The storage examples are based on a 128GB capacity using a 12‑megapixel JPEG, 128‑kbps MP3 audio, and HD video at 15 Mbps. Actual number of photos, songs, and hours will vary depending on camera or device model, format resolution and compression, usable capacity, and bundled software.

Who should choose this card?

Choose this Lexar microSDXC card if you use sports camcorders, tablets, or smartphones and need a high‑capacity card that supports Full‑HD, 3D, and 4K video. The 512GB option offers extended storage for long shoots, large photo libraries, or extensive media collections while delivering high read performance for fast transfers.

FAQ

Question: Will this card work in my device?
Answer: The card is designed for sports camcorders, tablets, and smartphones and supports 1080p Full‑HD, 3D, and 4K video capture as stated. For other devices, check your device’s compatibility with microSDXC, UHS‑I, and Class 10 cards.

Question: What read and write speeds can I expect?
Answer: Lexar lists read speeds up to 95MB/s for the 633x family; write speeds are lower. For the 512GB model specifically, the listed write speed is up to 45MB/s. These speeds are based on internal testing and may vary with device and conditions.

Question: How many photos or hours of video will the 512GB card hold?
Answer: The product description gives example estimates—more than 15 hours of HD video, 33,000 photos, or 28,000 songs—but those figures are based on a 128GB card and specific test conditions. Actual capacity will vary by resolution, compression, file formats, and device.

Question: What do the capacity listings include?
Answer: The capacity listings show the card families and their rated classes, formats, UHS/A/V ratings, and the read/write speed claims for each listed size, including the 512GB SDXC listing with UHS‑I (U3), A2, V30 and read/write figures as shown in the specifications table above.