SanDisk Extreme PRO 128GB SDXC UHS-I Card (SDSDXXD-128G-GN4IN) – 200MB/s, U3, V30

Pro-grade speed ratings in an affordable 128GB card.

The SanDisk Extreme PRO 128GB SDXC card brings U3, V30, and fast read speeds to an affordable capacity. It suits photographers and videographers who rotate several cards per shoot, enthusiasts moving up from basic cards, and owners of secondary camera bodies.

Why Write Speed Matters for Burst Shooting and 4K

Burst photography fills a camera’s internal buffer in seconds. The camera then writes those images to the card, and if the card is slow, you wait before you can shoot again. In 4K video, a card that cannot sustain the camera’s bitrate stops recording.

The SanDisk Extreme PRO 128GB writes at up to 90MB/s and carries U3 and V30 ratings, so it sustains at least 30MB/s for 4K recording and clears burst buffers quickly. Reads of up to 200MB/s speed up offloading with a compatible reader.

128GB is a common working size for photographers who prefer multiple smaller cards, limiting how much work is stored on any one card during a shoot.

Quicker Offloads in the Edit Bay

Reaching the top read speed requires a reader that supports SanDisk’s extended UHS-I mode. Standard UHS-I readers run at up to about 104MB/s, still far quicker than older cards.

Ideal for Card Rotation

Rotating several 128GB cards spreads risk and keeps each card’s contents easy to manage and back up.

It is also a good size for a second camera body, gimbal camera, or drone with a full-size SD slot.

How to Set Up the SanDisk Extreme PRO 128GB SD Card

1. Insert the card into your camera’s SD slot with the label facing the direction shown in the camera manual.
2. Format the card in-camera to create the correct file system and folder structure.
3. Set your image quality or video mode; for 4K, confirm your camera accepts V30 cards for the selected bitrate.
4. After shooting, offload files with a UHS-I reader and eject the card safely before removing it.