SanDisk Extreme SD UHS-I review

SanDisk Extreme SD UHS-I is the step down from the Extreme PRO and suits people who shoot family photos, travel snaps and some 4K video. SanDisk lists read speeds up to 180MB/s on the 128GB to 512GB cards and 170MB/s on 64GB, both through its QuickFlow Technology, and shot speeds up to 130MB/s on the larger sizes. Every capacity carries U3 and V30 ratings for 4K UHD recording, and SanDisk lists a Lifetime Limited Warranty. Write speed is where the sizes differ most: SanDisk specifies 130MB/s on 256GB and 512GB, 90MB/s on 128GB, 80MB/s on 64GB and 60MB/s on 32GB, so fast burst shooters should pick 256GB. The range stops at 512GB. At the SanDisk store the 32GB card showed $21.99, down from $29.99, with a Notify Me button when we checked, which is $7 less than the Extreme PRO at the same size. We compared documented features and published prices; we did not test the cards ourselves.

Who it is for

casual shooters who want a trusted brand for less

Price

From $21.99 for 32GB at the SanDisk store (list $29.99).

$21.99 Offer Price $21.99 $29.99 Actual Price $29.99
Quoted from the vendor pricing page on November 14, 2026.

Key features

• Read speeds up to 180MB/s on 128GB to 512GB cards with SanDisk QuickFlow Technology
• Shot speeds up to 130MB/s on 256GB and 512GB cards
• U3 and V30 ratings for 4K UHD video
• Capacities from 32GB to 512GB
• Operating temperature of -25°C to 85°C

Strengths and weaknesses

• Strength: Lifetime Limited Warranty listed by SanDisk
• Strength: $7 less than the Extreme PRO at the 32GB size on the SanDisk store
• Strength: SanDisk rates it temperature-proof, waterproof, shock-proof and x-ray-proof
• Weakness: Write speed drops to 90MB/s on 128GB, 80MB/s on 64GB and 60MB/s on 32GB
• Weakness: Tops out at 512GB, while the Extreme PRO goes to 1TB
• Weakness: 32GB card reads at up to 100MB/s and does not get QuickFlow

Key facts

• Price checked: $21.99 for 32GB at SanDisk
• Bus: UHS-I
• Speed class: U3, V30
• Top read: Up to 180MB/s (128GB to 512GB)
• Warranty: Lifetime Limited

Where it ranks

SanDisk Extreme SD UHS-I is No. 2 in our Best SD Cards verdict.