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Two microSDHC cards and a USB reader in plastic cases

SanDisk

SanDisk 16GB microSDHC Class 4 Twin Pack with Reader

SKU CH-A15B-D3KK9

Two 16 GB microSDHC Class 4 cards plus a USB reader for portable storage

  • TypemicroSDHC
  • Card typeMicroSD
  • Capacity16GB
  • Speed Class RatingClass 4
  • Twin 16 GB cards double your storage
  • Class 4 rating guarantees 4 MB/s minimum write speed
  • microSDHC format fits phones, cameras and other portables
  • USB reader included for instant PC transfers
  • Two protective cases keep cards safe when not in use

Twin-pack microSDHC for everyday storage

This twin-pack supplies two 16GB microSDHC cards rated Class 4, each delivering at least 4MB/s sustained write speed. A USB reader and plastic cases are included so the cards can be used immediately with laptops, desktops or any device that accepts a USB mass-storage drive. The bundle suits users who want a simple, ready-to-go storage set for documents, photos or standard-definition video.

16GB each with Class 4 headroom

Each card holds 16GB, giving a combined 32GB across the pair. Class 4 guarantees a minimum 4MB/s write rate, which is adequate for everyday file transfers, music libraries and standard-definition recording. The speed floor becomes a bottleneck when writing large bursts of high-bitrate footage or when offloading many gigabytes in a hurry. Devices limited to the original microSD format cannot recognise these cards, so older hardware may not be compatible.

Passive operation with minimal draw

The cards contain no moving parts and draw power only during active read or write cycles, so they run silently and add negligible load to a host device. Heat output is barely perceptible in normal use, and the supplied USB reader likewise operates without a fan. No external power adapter is required; the reader draws its supply directly from the USB port.

Highlights

  • Twin 16 GB cards double your storage
  • Class 4 rating guarantees 4 MB/s minimum write speed
  • microSDHC format fits phones, cameras and other portables
  • USB reader included for instant PC transfers
  • Two protective cases keep cards safe when not in use

Specifications

BrandSanDisk
TypemicroSDHC
Card typeMicroSD
Capacity16GB
Speed Class RatingClass 4

Questions about this item

Will these 16GB Class 4 microSDHC cards work in a device that only supports the original microSD format up to 2GB?

No, the original microSD format only supports cards up to 2GB. These 16GB microSDHC cards require a device with an SDHC-compatible slot.

How can I confirm the cards deliver the rated Class 4 performance after formatting them?

Class 4 guarantees a minimum sustained write speed of 4MB/s. You can verify this by running a sequential write test with a benchmark tool after formatting.

Does the bundle include the two plastic cases and the USB reader shown in the kit description?

Yes, the kit contains two 16GB microSDHC cards, each in its own plastic case, plus one USB reader for connecting the cards to a computer.

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