Quick Summary
The SanDisk Extreme PRO 128GB SD memory card is a UHS-I card with V30, U3 and C10 ratings. It is intended for storing photos and video, and the stated read speed is up to 250 MB/s.
The card also lists up to 120 MB/s write speeds and support for 4K UHD and Full HD. If speed, format and capacity matter for your setup, check that your device accepts SD cards and that 128GB is the size you want.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | SanDisk – the product sits in the Extreme PRO range. |
| Product type | SD memory card – used for camera and compatible device storage. |
| Capacity | 128GB – useful when comparing how much footage or media you want to keep on one card. |
| Interface | UHS-I – the host device needs to support the format for correct use. |
| Speed ratings | Up to 250 MB/s read speed and up to 120 MB/s write speed, with V30, U3 and C10 ratings. |
| Video support | 4K UHD and Full HD are listed for this card. |
What to Compare Before Buying
- Card format: This is an SD memory card, so check that your device takes full-size SD cards rather than microSD.
- Capacity: 128GB suits buyers who want a single mid-size storage option, but larger or smaller cards may better match your recording needs.
- Speed rating: The V30, U3 and C10 ratings are useful checks when the card is needed for sustained video recording.
- Device support: Confirm that your camera, recorder or reader supports UHS-I and the SD card format.
What Else You May Need
You may need a compatible device with an SD card slot or a card reader for file transfer and backup.
Before You Decide
Check that you need a 128GB full-size SD card rather than another format or capacity. Confirm UHS-I support in the device you plan to use, and make sure the stated speed ratings match how you intend to record or transfer files.


