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Small black microSDXC card with full-size SD adapter

AGI

AGI TF138 256GB microSDXC U3 V30 A2 98/70 MBs

SKU CH-5Y4T-KCAEN

256 GB microSDXC card with U3 and V30 ratings, 98 MB/s read and 70 MB/s write speeds, plus A2 app performance and an SD adapter included

  • Card typeMicroSD
  • TypemicroSDXC
  • Capacity256GB
  • Speed Class RatingU3
  • Read Speed98 MBs
  • Write Speed70 MBs

Capacity 256GB

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  • Read speed up to 98 MB/s for quick file access
  • Write speed up to 70 MB/s for smooth 4K video capture
  • A2 rating lets you run apps directly from the card
  • ECC technology detects and corrects data errors automatically
  • Includes SD adapter for use in cameras and card readers

Capacity and speed class

The AGI TF138 is a 256GB microSDXC card rated U3 and V30 with a Class 10 baseline. Sequential reads reach 98 MBs and writes reach 70 MBs. An SD adapter is included for use in full-size slots.

Sustained write behaviour

The V30 rating guarantees a minimum sustained write speed of 30 MBs during continuous recording. This keeps bitrate-heavy video streams stable without dropped frames. ECC technology detects and corrects transfer errors on the fly.

Compatibility check

Verify that your device supports the microSDXC standard and the UHS-I bus to achieve the stated speeds. The A2 rating benefits app loading on Android devices but requires host support. The physical write-protect switch operates only when the card is inserted into the supplied SD adapter.

商品特色

  • Read speed up to 98 MB/s for quick file access
  • Write speed up to 70 MB/s for smooth 4K video capture
  • A2 rating lets you run apps directly from the card
  • ECC technology detects and corrects data errors automatically
  • Includes SD adapter for use in cameras and card readers

商品規格

BrandAGI
Card typeMicroSD
SeriesTF138
ModelAGI128GGSTF138
TypemicroSDXC
Capacity256GB
Speed Class RatingU3
Read Speed98 MBs
Write Speed70 MBs

其他版本

同系列還有 3 款

同系列產品，記憶體、散熱器或時脈不同 — 下單前請先比較。

商品問答

Does the AGI TF138 256GB card draw enough power to heat up or make noise during all-day recording?

The card is a passive microSDXC device with no moving parts, so it produces no audible noise and negligible heat during continuous read or write operations at up to 98 MB/s read and 70 MB/s write.

What host device features are required for the AGI TF138 to deliver its rated U3 and V30 speeds?

The host must support UHS-I Class 10 and the U3 video speed class; the included SD adapter lets you use it in full-size SD slots that meet those specifications.

Will the AGI TF138 work reliably in an older camera that only supports Class 10 or U1 cards?

Yes, the card is backward compatible with Class 10 and U1 hosts, though sustained write speeds will be limited to the older device's maximum capability.

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