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SanDisk Ultra 128GB SDXC memory card, black full-size SD card with red label

SanDisk

SanDisk SDSDUNB-128G-GN6IN 128GB Ultra SDXC UHS-I Class 10 memory card

SKU CH-YBCK-AVP1A MPN SDSDUNB-128G-GN6IN

128 GB SDXC card delivers up to 140 MB/s read speed and UHS-I U1 Class 10 performance for Full HD 1080p video

  • Card typeFull Size SD
  • TypeSecure Digital Extended Capacity (SDXC)
  • Capacity128GB
  • Speed Class RatingUHS-I / U1 / Class 10
  • Read Speed140MB/s

Capacity 128GB

Struck-through versions exist but are not stocked here.

  • 128GB capacity stores thousands of photos and Full HD clips
  • Read speeds up to 140MB/s move large files to your computer quickly
  • UHS-I U1 and Class 10 ratings guarantee smooth 1080p video recording
  • Full-size SDXC form factor fits standard camera slots
  • Built for compact and mid-range point-and-shoot cameras

128 GB SDXC card for everyday cameras

This 128 GB SanDisk Ultra SDXC card uses the UHS-I interface and carries a Class 10 and U1 speed rating. It is aimed at owners of compact and mid-range point-and-shoot cameras who need reliable storage for photos and Full HD video.

UHS-I bus limits sustained write performance

The UHS-I bus caps maximum read speed at 140 MB/s, while the U1 and Class 10 ratings guarantee a minimum sustained write speed of 10 MB/s. That floor is sufficient for 1080p recording but may bottleneck higher-bitrate or higher-resolution formats.

Check your device accepts SDXC and UHS-I

Before ordering, confirm that your camera or reader supports the SDXC capacity standard and can initialise a UHS-I card. Older hosts limited to SDHC will not recognise the 128 GB capacity, and non-UHS slots will fall back to slower speeds.

Highlights

  • 128GB capacity stores thousands of photos and Full HD clips
  • Read speeds up to 140MB/s move large files to your computer quickly
  • UHS-I U1 and Class 10 ratings guarantee smooth 1080p video recording
  • Full-size SDXC form factor fits standard camera slots
  • Built for compact and mid-range point-and-shoot cameras

Specifications

BrandSanDisk
Card typeFull Size SD
SeriesUltra
ModelSDSDUNB-128G-GN6IN
TypeSecure Digital Extended Capacity (SDXC)
Capacity128GB
Speed Class RatingUHS-I / U1 / Class 10
Read Speed140MB/s
Shipping weight0.01 kg
Package size173 × 104 × 5 mm

Other versions of this model

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Questions about this item

Should I choose the 128GB Ultra or look for a larger capacity in the same series?

The 128GB capacity suits thousands of Full HD photos and hours of 1080p footage; step up only if you regularly fill cards in a single shoot.

The box says 140MB/s — will I see that speed when copying files to my laptop?

140MB/s is the maximum read burst; real-world transfers depend on your card reader and USB port, so sustained copies will often be lower.

How does the UHS-I / U1 rating affect video recording on my camera?

U1 and Class 10 guarantee a 10MB/s minimum write stream, which is the spec required for smooth Full HD 1080p recording.

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