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Twenty-five small black microSD cards with one black USB card reader

SanDisk

SanDisk microSDHC Class 4 16 GB 25 Pack with Reader

SKU CH-Q3VX-F8EST

Bulk pack of 25 microSDHC cards with 16 GB capacity and Class 4 speed, supplied with protective cases and a reader

  • Total capacity16 GB
  • Memory card formatMicroSD
  • Speed classClass 4
  • Product typeMicroSDHC
  • 25 cards and one reader in a single pack
  • Class 4 rating delivers up to 20 MB/s read and 5 MB/s write
  • Water, shock, vibration, X-ray, magnet and impact proof
  • Cards operate from -25 °C to 85 °C
  • 16 GB capacity per card suits cameras, phones and tablets

16 GB Class 4 microSDHC bundle

This pack contains twenty-five 16 GB microSDHC cards rated Class 4 for standard-speed capture. Each card works with microSDHC-compatible devices such as point-and-shoot cameras, smartphones, tablets and handheld consoles. A single USB reader is included so files can be transferred to a computer without extra hardware. The cards ship in individual plastic cases for organisation and protection.

Sustained write performance

Class 4 guarantees a minimum sequential write speed of 4 MB/s, which the manufacturer specifies as up to 5 MB/s write and up to 20 MB/s read. These rates are maintained during continuous recording rather than only in short bursts. The throughput suits standard-definition video and everyday photo capture but will not keep pace with high-bitrate or 4K workflows that demand faster sustained writes.

Durability and operating range

Cards are rated waterproof, shock-proof, vibration-proof, X-ray-proof, magnet-proof and impact-proof for rugged handling. They operate reliably from minus 25 °C to 85 °C, covering cold outdoor shoots and hot vehicle interiors. Power draw follows the microSDHC specification and is negligible during normal read or write activity, producing no audible noise.

How it compares

Measured against everything we stock in USB & Internal Card Readers, at today’s prices. Recalculated every night.

Price $450.99
Pricier than about 92% of the 511 comparable items (median $18.99).

Specifications

Product
Brand nameSanDisk
Total capacity16 GB
Product typeMicroSDHC
Performance
Speed classClass 4
Storage
Memory card formatMicroSD

Questions about this item

Does the Class 4 speed rating affect heat or power draw when the 25 cards run all day?

Class 4 specifies a minimum 4 MB/s write speed; power draw and heat depend on the host device, not the card itself.

What host device must I already own so the included reader can access these 16 GB microSDHC cards?

A device with a free USB port that supports microSDHC cards up to 16 GB.

Will the 25 MB/s read speed work reliably in an older camera that only accepts standard microSD cards?

The cards are microSDHC; they require a microSDHC-compatible host and will not function in legacy microSD-only slots.

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