With the SanDisk Extreme SD UHS-I memory card save time transferring media with read speeds of up to 170MB/s(1) powered by SanDisk QuickFlow Technology(2). Pair with the SanDisk Professional PRO-READER SD and microSD to achieve maximum speeds (sold separately). With shot speeds of up to 80MB/s(1) and UHS speed Class 3 (U3)(4) recording, you’re ready to capture high-resolution, stutter-free 4K UHD video(3). | (1)Up to 170MB/s read speeds. Engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speeds. Write speeds up to 80MB/s. Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes. (2)SanDisk QuickFlow Technology is only available for 64GB, 128GB, 256GB, and 512GB capacities. 1GB=1,000,000,000 bytes. Actual user storage less. (4)UHS Speed Class 3 designates a performance option designed to support 4K UHD video recording with enabled UHS host devices. UHS Video Speed Class 30 (V30), sustained video capture rate of 30MB/s, designates a performance option designed to support real-time video recording with UHS enabled host devices. See the SD Association’s official website. (4)Full HD (1920×1080) and 4K UHD (3840 x 2160) video support may vary based upon host device, file attributes and other factors. See HD page on SanDisk site.
From the manufacturer
Shot Speeds up to 80MB/s(1)
With shot speeds up to 80MB/s the card is perfect for capturing the action as it happens, without missing a beat.[64GB](7)
Improve Your Workflow Efficiency
With SanDisk QuickFlow Technology(2), this card optimizes performance with quick transfer speeds up to 170MB/s.(1) Pair with the SanDisk Professional PRO-READER SD and microSD to achieve maximum speeds (sold separately).[64GB](7)
4K UHD Video(3)
Sometimes speed is what you need. This card delivers the performance to capture stunning, uninterrupted 4K UHD video.
Sequential Burst Mode
Rated UHS Speed Class 3 (U3) and Video Speed Class 30 (V30)(4), capture sequential burst mode shots without missing a beat.
Trusted Durability
Built for and tested in harsh conditions, this card is temperature, water, shock, humidity, wear out, drop, X-ray, and magnet proof.(5)
Image Recovery
Includes a 2-year offer for RescuePRO Deluxe file recovery software(6), which helps you restore images you accidentally deleted.
Upgrade your workflow
 Extreme SD UHS-I Card |  Extreme PRO SD UHS-I Card |  PRO-READER SD and microSD |
|---|---|---|
Transfer SpeedsUp to 180MB/s(1)[128GB-256GB](7)(2) | Transfer SpeedsUp to 200MB/s(8)[64GB-1TB](7)(2) | PerformanceAllows for high-speed offloads that minimize downtime |
Shot SpeedsUp to 130MB/s(1)[256GB](7) | Shot SpeedsShot Speeds up to 140MB/s(9)[128GB-1TB](7) | Card CompatibilityIdeal for SanDisk SD and microSD cards with SanDisk QuickFlow Technology |
Video Quality4K UHD video(3) | Video Quality4K UHD video(3) | DesignPremium aluminum enclosure helps keep cards cool to prevent overheating |
Speed ClassC10, V30, and U3(4) | Speed ClassC10, V30, and U3(4) | ConnectivityUSB-C (5Gbps) port provides super-fast media transfers |
DurabilityTemperature, water, shock, humidity, wear out, drop, X-ray, and magnet proof(5) | DurabilityTemperature, water, shock, humidity, wear out, drop, X-ray, and magnet proof(5) | SecurityWrite-protect lock switch helps protect from overwriting |