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Small rectangular microSDXC card with SD adapter, black plastic finish

Lexar

Lexar High-Performance 633x 512GB microSDXC UHS-I Card with SD Adapter

SKU CH-CACR-KFA4K

512 GB microSDXC card rated 633x with UHS-I speeds up to 100 MB/s, Class 10, U3, V30, A2, includes SD adapter for 1080p and 4K video

  • 512GB capacity stores hours of 4K video
  • U3 & V30 ratings sustain 30MB/s for smooth recording
  • A2 rating speeds up app loading on phones
  • Up to 100MB/s read transfers files fast
  • Includes SD adapter for use in cameras and laptops

Capacity and compatibility

The Lexar High-Performance 633x microSDXC card offers 512GB of storage for smartphones, tablets and action cameras. It carries Class 10, U3, V30 and A2 ratings, making it suitable for apps and high-resolution media capture. An SD adapter is included for use in standard card slots.

Build integration

The UHS-I interface works with any device that accepts microSDXC cards, and the bundled adapter extends compatibility to full-size SD slots. No extra power or cables are required, freeing up internal storage on mobile devices for other data.

Sustained workload behaviour

Rated for up to 100MB/s read speed, the card maintains steady throughput during long 1080p or 4K recording sessions. The V30 guarantee ensures a minimum 30MB/s write rate so video capture does not stall under continuous load.

Highlights

  • 512GB capacity stores hours of 4K video
  • U3 & V30 ratings sustain 30MB/s for smooth recording
  • A2 rating speeds up app loading on phones
  • Up to 100MB/s read transfers files fast
  • Includes SD adapter for use in cameras and laptops

Specifications

No published specifications for this item yet.

Questions about this item

Will the 100 MB/s read speed hold steady during long 4K recording sessions?

The card is rated for a maximum read speed of 100 MB/s; sustained write performance depends on the host device and workload.

Does the card run hot or draw extra power during all-day video capture?

MicroSD cards consume very little power and generate minimal heat even during continuous 4K recording.

My device only has a full-size SD slot — will the included adapter work reliably?

Yes, the supplied SD adapter lets you use the 512 GB microSDXC card in any standard SDXC slot.

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