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SanDisk Extreme Pro 128GB SDXC memory card in black and red plastic casing

SanDisk

SanDisk Extreme Pro SDXC 128GB UHS-I U3 V30 A2 SDSDXXJ-128G-GSCIN memory card

SKU CH-B98W-4FVCC MPN SDSDXXJ-128G-GSCIN

Stores 128GB of 4K UHD video and high-resolution stills with U3 and V30 ratings, delivering read speeds up to 250MB/s and write speeds up to 120MB/s

  • Total capacity128 GB
  • Memory card formatSD Card
  • Speed classA2 / U3 / V30
  • Max read speedUp to 250 MB/s
  • Write throughputUp to 120 MB/s
  • Product typeSecure Digital Extended Capacity (SDXC)

Capacity Extreme Pro® 128GB

Show 2 more

Model Up to 250MB/s

  • Fast 4K UHD capture backed by U3 and V30 ratings
  • Quick file offload with read speeds up to 250MB/s
  • Smooth burst shooting using write speeds up to 120MB/s
  • Responsive app performance enabled by A2 rating
  • Ample 128GB capacity for extended recording sessions

128GB SDXC for 4K capture

The SanDisk Extreme Pro SDSDXXJ-128G-GSCIN is a UHS-I SDXC memory card rated for 128GB capacity. It carries U3, V30 and A2 speed class ratings, making it suitable for 4K UHD video and high-resolution still photography. The card targets creators who need sustained write performance for professional cameras and drones.

Check UHS-I slot and host limits

Verify that your device accepts SDXC cards and supports the UHS-I bus to reach the stated read and write speeds. Older readers or cameras limited to UHS speeds below U3 may not sustain 4K recording. The A2 rating benefits app performance on compatible Android devices but requires host support.

Rugged build for daily field use

The card is engineered to withstand extreme temperatures, shock, water and X-ray exposure during transport. Standard SD form factor ensures direct insertion into cameras, laptops and card readers without adapters. Write speeds up to 120MB/s and read speeds up to 250MB/s reduce offload time after long shoots.

How it compares

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

Price $38.99
Cheaper than about 56% 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 $304.61 per TB
Cheaper than about 59% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameSanDisk
Product lineExtreme Pro
Model nameSDSDXXJ-128G-GSCIN
Total capacity128 GB
Product typeSecure Digital Extended Capacity (SDXC)
Performance
Speed classA2 / U3 / V30
Max read speedUp to 250 MB/s
Write throughputUp to 120 MB/s
Storage
Memory card formatSD Card
Size & build
Shipping weight0.05 kg
Package size152 × 102 × 6 mm

Other versions of this model

5 more in the same range

Questions about this item

Does the SDSDXXJ-128G-GSCIN card come with a reader or adapter, or must I buy one separately?

The card is supplied alone; a compatible SD reader or USB adapter is required to transfer files to a computer.

Should I choose this 128 GB UHS-I card or a larger capacity model for 4K video?

The 128 GB version offers up to 250 MB/s read and 120 MB/s write; higher capacities (256 GB to 1 TB) reach 170 MB/s write, so pick based on sustained write needs.

What does the 250 MB/s read figure mean when I am shooting 4K UHD at 30 fps?

It is the maximum transfer rate to a host device; actual sustained write during 4K recording is limited to the card's 120 MB/s write speed and the camera's bitrate.

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