SanDisk 256GB Extreme PRO SDXC UHS-I Memory Card – C10, U3, V30, 4K UHD, SD Card – SDSDXXD-256G-GN4IN, Dark gray/Black

EXPERT FEATURES

• Save time with card offload speeds of up to 200MB/s powered by SanDisk QuickFlow Technology (Up to 200MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speeds.
• Based on internal testing; performance may be lower depending upon host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes. X = 150KB/sec. SanDisk QuickFlow Technology is only available for 64GB, 128GB, 256GB, 512GB and 1TB capacities. 1GB=1,000,000,000 bytes. 1TB=1,000,000,000,000 bytes. Actual user storage less.)
• Shot speeds up to 140MB/s (Write speed up to 140MB/s. Based on internal testing; performance may be lower depending upon host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes. X = 150KB/sec.)
• Perfect for shooting 4K UHD video and sequential burst mode photography (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.)
• UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) (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. 

From the manufacturer

Improve Your Workflow Efficiency

With SanDisk QuickFlow Technology(2), this card optimizes performance with quick transfer speeds up to 200MB/s.(1) Pair with the SanDisk Professional PRO-READER SD and microSD to achieve maximum speeds (sold separately).[64GB-1TB]

Shot Speeds up to 140MB/s(1)[256GB-1TB]

With shot speeds up to 140MB/s the card is perfect for capturing the action as it happens, without missing a beat.[256GB-1TB]

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), this card lets you 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)