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Two small black microSDXC cards in clear plastic packaging

Gigastone Corporation

Gigastone 128-4-2 128GB 2-Pack MicroSDXC A2 U3 V30 memory card

SKU CH-X1TE-BBMSJ

Two 128 GB microSDXC cards rated A2, U3 and V30 for 4K video and fast app loading with read speeds up to 100 MB/s and write speeds up to 50 MB/s

  • Card typeMicroSD
  • TypemicroSDXC
  • Capacity256GB (128GB x 2)
  • Speed Class RatingA2 / U3 / UHS-I / V30
  • Read SpeedUp to 100MB/s
  • Write SpeedUp to 50MB/s

Capacity 256GB (128GB x 2)

Series 4K Camera Pro

Las versiones tachadas existen, pero no están disponibles aquí.

Option 2-Pack

  • Ready for 4K recording with V30 sustained write speed
  • Faster app launches on phones and tablets thanks to A2 rating
  • Reads up to 100 MB/s for quick file transfers
  • Two 128 GB cards give 256 GB total capacity
  • Five-year warranty includes free data recovery service

Dual-pack microSDXC for 4K capture

Two 128 GB microSDXC cards deliver a combined 256 GB of storage. Rated UHS-I U3 V30 A2, they sustain sequential writes fast enough for uninterrupted 4K video on action cameras, drones and the Nintendo Switch. The A2 rating also accelerates app loading when used in smartphones or tablets.

Passive operation with no thermal concerns

As solid-state memory cards they have no moving parts, draw minimal power from the host device and run completely silent. No active cooling is required and normal use produces no perceptible heat, making them suitable for continuous recording in compact enclosures.

V30 sustained write speed decides suitability

The V30 marking guarantees a minimum 30 MB/s sequential write, the threshold for reliable 4K capture. If your workflow demands sustained writes above 30 MB/s, such as high-bitrate 8K or professional cinema formats, these cards will not meet that requirement.

Puntos fuertes

  • Ready for 4K recording with V30 sustained write speed
  • Faster app launches on phones and tablets thanks to A2 rating
  • Reads up to 100 MB/s for quick file transfers
  • Two 128 GB cards give 256 GB total capacity
  • Five-year warranty includes free data recovery service

Especificaciones

BrandGigastone
Card typeMicroSD
Series4K Camera Pro
Model128-4-2
Part Number128-4-2
TypemicroSDXC
Capacity256GB (128GB x 2)
Speed Class RatingA2 / U3 / UHS-I / V30
Read SpeedUp to 100MB/s
Write SpeedUp to 50MB/s
Features[Speed] Read/Write up to 100/50 MB/s, V30 speed grade, Ultra HD (UHD) 4K video recording, UHD 4K gaming.
[App] A2 grade provides faster App loading performance for Smartphone & Tablet.
[Storage] Expand smartphone internal storage space. Run App on Micro SD card.
[Compatibility] Storage expansion for Laptop, Tablet, PC, Smartphones, Camera, DSLR, Dash Cam, Camcorder, Surveillance, e-Reader, Drone, Gaming. Files, Videos, Music. Compatible with Nintendo Switch GoPro Andoroid Samsung Canon Nikon
[Support] Gigastone 5-year limited warranty including free data recovery. Free data recovery
Option2-Pack

Otras versiones de este modelo

5 más en esta gama

Misma familia, con memoria, disipador o frecuencia diferentes — compare antes de decidirse.

Preguntas sobre este artículo

How do I install the 128GB MicroSDXC card in my device, and what step do people often miss?

Insert the card label-side up until it clicks into the microSD slot; the step many miss is formatting the card in the device settings before first use to ensure the A2 and V30 ratings work correctly.

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

The card has no moving parts, so no routine maintenance is required; replace it if write speeds drop below 50MB/s or if errors appear after heavy 4K recording cycles.

What limit appears first during sustained 4K video recording on this MicroSDXC card?

The sustained write speed ceiling of 50MB/s is the first limit reached during continuous V30 4K capture, capping bitrate before capacity fills.

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