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Two small black microSD cards with red and white labels

SanDisk

SanDisk 16GB microSDHC Class 4 (2 Pack)

SKU CH-Y9FJ-4V4YX

Two 16 GB microSDHC Class 4 cards add storage for photos, Full HD video and music on compatible devices

  • TypemicroSDHC
  • Card typeMicroSD
  • Capacity16GB
  • Speed Class RatingClass 4
  • Stores 16 GB of photos and Full HD video
  • Class 4 rating meets SD 2.0 minimum write speed
  • Two cards double your available storage
  • microSDHC format fits phones and tablets
  • Reliable SanDisk quality for everyday mobile use

16GB microSDHC Twin Pack

This twin pack provides two SanDisk microSDHC cards, each offering 16GB of storage for mobile phones and other compatible devices. The cards use the microSDHC form factor and are rated Class 4 for sustained write performance. They are suited to users who need basic extra capacity for everyday media files.

Class 4 Speed Rating

The decisive specification is the Class 4 rating, which guarantees a minimum sequential write speed of 4 MB/s under the SD 2.0 specification. This level supports standard-definition video recording and photo capture but is not fast enough for Full HD or higher bit-rate footage. Buyers who need faster sustained writes for high-resolution video should choose a higher class card.

Sustained Write Behaviour

Under continuous load the card maintains at least the Class 4 threshold rather than peaking at a higher burst speed. Performance stays steady during long recordings or bulk file transfers without the drop-off seen in burst-only ratings. The two-card bundle lets you swap media or keep one card as a spare while the other is in use.

Highlights

  • Stores 16 GB of photos and Full HD video
  • Class 4 rating meets SD 2.0 minimum write speed
  • Two cards double your available storage
  • microSDHC format fits phones and tablets
  • Reliable SanDisk quality for everyday mobile use

Specifications

BrandSanDisk
TypemicroSDHC
Card typeMicroSD
Capacity16GB
Speed Class RatingClass 4

Questions about this item

What does the Class 4 rating mean for everyday use in a phone or camera?

Class 4 guarantees a minimum sustained write speed of 4 MB/s, enough for Full HD video recording and continuous photo capture on compatible devices.

How does the SD 2.0 specification limit this card's maximum capacity and speed?

The SD 2.0 specification caps microSDHC cards at 16 GB and defines the Class 4 speed tier used by this card.

Will this card fit directly into a standard SD card slot on a laptop?

No, it is a microSDHC card; you need a microSD-to-SD adapter to use it in a full-size SD slot.

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