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Small black microSDXC card labelled AGI TF138 128GB with full-size SD adapter

AGI

AGI TF138 128GB microSDXC U3 V30 A2 98/70 MBs

SKU CH-D3HM-N0WM7

128 GB microSDXC card with U3 and V30 ratings delivers 98 MB/s read and 70 MB/s write speeds for 4K video and app use

  • Card typeMicroSD
  • TypemicroSDXC
  • Capacity128GB
  • Speed Class RatingU3
  • Read Speed98 MBs
  • Write Speed70 MBs

Capacity 128GB

Les versions barrées existent, mais ne sont pas disponibles ici.

  • V30 rating guarantees smooth 4K video capture at 30 MB/s
  • A2 class speeds up app loading when running from the card
  • Read speed up to 98 MB/s transfers large files quickly
  • Write speed up to 70 MB/s reduces buffer clearing time
  • Includes SD adapter for use in DSLRs and camcorders

Capacity and class

The AGI TF138 is a 128GB microSDXC card rated U3 and V30, built for devices that need sustained write performance. It suits photographers, videographers and mobile users who record full-HD or 4K footage directly to removable storage. The A2 rating means apps launched from the card open quickly. Buyers who need higher capacities or faster bus speeds should look elsewhere.

Thermals noise and power

As a solid-state memory card the TF138 generates no audible noise and runs cool during typical read and write cycles. Power draw is minimal, leaving the host device’s battery life essentially unaffected. No active cooling or special airflow is required.

Build fit and adapter

The card uses the microSD form factor and ships with a full-size SD adapter, letting it slot into cameras, camcorders, laptops and card readers that accept standard SD media. It requires a host that supports the UHS-I bus to reach the quoted 98 MB/s read and 70 MB/s write speeds. The built-in write-protect switch on the adapter prevents accidental erasure when the card is moved between devices.

Points forts

  • V30 rating guarantees smooth 4K video capture at 30 MB/s
  • A2 class speeds up app loading when running from the card
  • Read speed up to 98 MB/s transfers large files quickly
  • Write speed up to 70 MB/s reduces buffer clearing time
  • Includes SD adapter for use in DSLRs and camcorders

Caractéristiques

BrandAGI
Card typeMicroSD
SeriesTF138
ModelAGI128GGSTF138
TypemicroSDXC
Capacity128GB
Speed Class RatingU3
Read Speed98 MBs
Write Speed70 MBs

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Questions sur cet article

How do I install the AGI TF138 microSDXC card and what step is often missed?

Insert the card into your device's microSD slot with the gold contacts facing down until it clicks; if using a full-size SD slot, first place the card into the included SD adapter, as skipping the adapter is the common mistake.

What maintenance or replacement will the AGI TF138 128GB card need over time?

The card uses ECC error correction to maintain data integrity, but flash memory has a finite write endurance; replace it if you notice sustained write speeds dropping below the rated 70 MBs or if file corruption appears.

What limit appears first during sustained write use on the AGI TF138 U3 V30 card?

The V30 rating guarantees a minimum sequential write speed of 30 MBs, so the first limit under continuous recording is that the card cannot sustain writes faster than 30 MBs without risking frame drops.

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