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SanDisk Extreme Pro 128GB SDXC memory card, black with red label

SanDisk

SanDisk Extreme Pro 128GB SDXC UHS-I U3 V30 Class 10 Memory Card (SDSDXXY-128G-GN4IN)

SKU CH-40PT-1RJFA MPN SDSDXXY-128G-GN4IN

128GB SDXC card rated U3/V30/Class 10 for 4K UHD video and burst photography, delivering up to 170MB/s read and 90MB/s write speeds

  • Total capacity128 GB
  • Speed classUHS-I / U3 / Class 10 / V30
  • Max read speedUp to 170 MB/s
  • Write throughputUp to 90 MB/s
  • Product typeSecure Digital Extended Capacity (SDXC)
  • Key featuresPerfect for shooting 4K UHD video and sequential burst mode

Capacity 128GB

  • Fast 4K UHD video capture with U3 and V30 ratings
  • Rapid burst photography supported by up to 90MB/s write speed
  • Quick file transfers at up to 170MB/s read speed
  • Ample 128GB capacity for extended shooting sessions
  • Durable temperature-proof waterproof shockproof x-ray-proof design

128 GB SDXC UHS-I card

The SanDisk Extreme Pro 128GB SDXC card delivers read speeds up to 170MB/s and write speeds up to 90MB/s. It carries UHS Speed Class 3 (U3), Video Speed Class 30 (V30) and Class 10 ratings for sustained performance. The card is built for 4K UHD video capture and sequential burst-mode photography. Photographers and videographers who need reliable high-speed storage will find it suited to demanding workflows.

Temperature proof waterproof shockproof x-ray proof

The card is tested to withstand extreme temperatures, water immersion, physical shock and airport x-ray scanners. Its SDXC form factor fits standard SD slots in cameras, drones, laptops and card readers without adapters. Daily handling in harsh environments or frequent travel poses minimal risk to stored data. Creators working outdoors or in unpredictable conditions gain confidence that the media survives the journey.

Upgrade from slower Class 10 or U1 cards

Moving from a basic Class 10 or UHS Speed Class 1 card removes bottlenecks during 4K recording and long burst sequences. The jump is worth it when sustained write speeds above 30MB/s are required to prevent dropped frames or buffer delays. Users shooting Full HD only or transferring occasional photos will not see a practical benefit. The 128GB capacity also limits extended 4K sessions without offloading.

How it compares

Measured against everything we stock in SD & MicroSD Memory Cards, at today’s prices. Recalculated every night.

Price $25.99
Cheaper than about 70% of the 1,947 comparable items (median $46.99).
Total capacity 128 GB
Higher than about 60% of the 1,132 comparable items (median 64 GB).
Price per TB $203.05 per TB
Cheaper than about 80% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameSanDisk
Product lineExtreme Pro
Model nameSDSDXXY-128G-GN4IN
Total capacity128 GB
Product typeSecure Digital Extended Capacity (SDXC)
Performance
Speed classUHS-I / U3 / Class 10 / V30
Max read speedUp to 170 MB/s
Write throughputUp to 90 MB/s
Size & build
Shipping weight0.02 kg
Package size180 × 99 × 13 mm

Other versions of this model

2 more in the same range

Questions about this item

What does the UHS-I interface limit the maximum transfer speed to on this card?

The UHS-I bus caps read performance at 170MB/s and write performance at 90MB/s on this 128GB Extreme Pro card.

What physical slot size does this SDXC card require?

It fits any standard full-size SDXC slot in cameras, camcorders, laptops or card readers.

How do I prepare the card before first use, and what step is often missed?

Insert the card, then format it in the camera using the camera's own format function — skipping in-camera formatting can cause recording errors.

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