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Small rectangular SDXC card, black with red label, gold contacts visible

SanDisk

SanDisk Extreme 128GB SDXC UHS-I U3 V30 memory card (SDSDXV5-128G-GNCIN)

SKU CH-KBG5-FAZY6 MPN SDSDXV5-128G-GNCIN

Stores 128GB of 4K UHD footage and burst photos with U3 and V30 sustained write speeds up to 70MB/s and read speeds up to 150MB/s

  • Total capacity128 GB
  • Speed classUHS-I / U3 / Class 10 / V30
  • Max read speedUp to 150 MB/s
  • Write throughputUp to 70 MB/s
  • Product typeSecure Digital Extended Capacity (SDXC)
  • Key featuresPerfect for shooting 4K UHD video and sequential burst mode

Capacity 128GB

  • Fast 4K video capture with U3 and V30 speed ratings
  • Quick file transfers up to 150MB/s read speed
  • Reliable burst photography at up to 70MB/s write speed
  • Large 128GB capacity stores hours of footage
  • Durable design resists water, shock, temperature and x-rays

128GB SDXC UHS-I card for 4K video

The SanDisk Extreme SDSDXV5-128G-GNCIN is a 128GB SDXC memory card rated UHS-I, U3, Class 10 and V30. It targets photographers and videographers who need reliable capture of 4K UHD footage and sequential burst images. The card is built new and tested for harsh environments.

Sustained write performance for long clips

Rated write speeds reach up to 70MB/s, meeting the V30 guarantee for uninterrupted 4K UHD video recording. The U3 and Class 10 ratings ensure the card maintains this minimum throughput during extended sessions rather than only in short bursts. Read speeds of up to 150MB/s help offload large files quickly after shooting.

Simple drop-in install with rugged build

The card uses the standard SDXC form factor, so it fits any compatible slot without drivers or adapters. Its temperature-proof, waterproof, shockproof and x-ray-proof construction reduces the risk of data loss from physical mishandling or airport scanners. Users should verify their device supports SDXC and UHS-I to access full speed.

How it compares

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

Price $27.99
Cheaper than about 68% 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 $218.67 per TB
Cheaper than about 77% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Brand nameSanDisk
Product lineExtreme
Model nameSDSDXV5-128G-GNCIN
Total capacity128 GB
Product typeSecure Digital Extended Capacity (SDXC)
Performance
Speed classUHS-I / U3 / Class 10 / V30
Max read speedUp to 150 MB/s
Write throughputUp to 70 MB/s
Size & build
Shipping weight0.02 kg
Package size151 × 103 × 8 mm

Other versions of this model

2 more in the same range

Questions about this item

How does the card handle heat and power draw during all-day 4K recording?

The card is temperature-proof, waterproof, shockproof and x-ray-proof, so it maintains performance during extended shoots without overheating concerns.

What device slot or reader is required to use the 128GB capacity and UHS-I speeds?

An SDXC-compatible slot or reader is needed; UHS-I devices will deliver up to 150MB/s read and 70MB/s write, while older SDHC slots cannot address the 128GB capacity.

Will a UHS-I camera that only supports Class 10 still record 4K without dropped frames?

The V30 and U3 ratings guarantee a minimum 30MB/s sustained write, which meets the 4K UHD bit-rate requirements even in cameras limited to UHS-I Class 10.

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