SanDisk Extreme PRO 256GB SDXC UHS-I Memory Card - SDSDXXD-256G-GN4IN

SanDisk Extreme PRO 256GB SDXC UHS-I Memory Card
The SanDisk Extreme PRO 256GB, model SDSDXXD-256G-GN4IN, is a high-performance full-size SD memory card designed for photographers, videographers, DSLR cameras, mirrorless cameras, and other compatible SDXC devices.
With transfer speeds of up to 200MB/s and write speeds of up to 140MB/s, it is designed for fast burst photography, high-resolution images, and smooth 4K UHD video recording. Sandisk
256GB Storage Capacity
With 256GB of storage, the card provides substantial space for:
- High-resolution RAW and JPEG photos
- 4K UHD video
- Full HD video
- Continuous burst photography
- Large project files
Actual available capacity is lower after formatting and system usage.
Up to 200MB/s Read Speed
SanDisk rates the 256GB model for sequential read speeds of up to:
200MB/s
The card uses SanDisk QuickFlow Technology to reach transfer speeds beyond the normal UHS-I bus specification when used with compatible hardware. Maximum advertised speeds require compatible devices and readers. Sandisk
Up to 140MB/s Write Speed
Sequential write performance is rated at up to:
140MB/s
Fast write speeds help when shooting high-resolution photos in continuous burst mode or recording demanding video formats. Sandisk
UHS Speed Class 3 - U3
The card carries a:
UHS Speed Class 3 (U3)
rating.
U3 is designed to support sustained high-speed recording requirements, including compatible 4K UHD video recording. Sandisk
Video Speed Class 30 - V30
The Extreme PRO is also rated:
V30
V30 guarantees a minimum sustained video write speed of 30MB/s under the Video Speed Class specification, making the card suitable for compatible high-resolution video recording devices. Sandisk
Designed for 4K UHD Video
SanDisk specifically positions the Extreme PRO UHS-I SD card for 4K UHD video capture.
Actual supported video resolution, frame rate, and recording bitrate depend on the camera and recording format being used. Sandisk
Excellent for Burst Photography
The combination of fast write speeds and U3/V30 ratings makes this card suitable for continuous high-speed photography with compatible DSLR and mirrorless cameras.
This is useful for sports, wildlife, events, travel, and other situations where multiple images may be captured rapidly.
SanDisk QuickFlow Technology
The 256GB Extreme PRO supports SanDisk QuickFlow Technology, designed to improve media offload speeds.
SanDisk states that maximum read performance is best achieved using compatible high-speed hardware such as the SanDisk Professional PRO-READER SD and microSD reader, sold separately. Sandisk
Built for Harsh Conditions
SanDisk states that the Extreme PRO UHS-I SD card is tested to withstand challenging environments and is:
- Temperature resistant
- Waterproof
- Shock resistant
- X-ray resistant
Protection applies to the card itself and remains subject to SanDisk's stated limitations. Sandisk
Wide Operating Temperature Range
SanDisk specifies:
Operating temperature: -25°C to 85°C
Non-operating temperature: -40°C to 85°C
This makes the card suitable for use across a wide range of environmental conditions. Sandisk
RescuePRO Deluxe Offer
The card includes an offer for 2 years of RescuePRO Deluxe data recovery software, which can help recover accidentally deleted files.
Registration and applicable terms are required. Sandisk
Compact Standard SD Form Factor
The card measures approximately:
31.92 × 23.91 × 2.17mm
and weighs around:
1.67g. Sandisk
Key Features
- Brand: SanDisk
- Series: Extreme PRO
- Model Number: SDSDXXD-256G-GN4IN
- Capacity: 256GB
- Card Type: SDXC
- Interface: UHS-I
- Maximum Read Speed: Up to 200MB/s
- Maximum Write Speed: Up to 140MB/s
- UHS Speed Class: U3
- Video Speed Class: V30
- Suitable for 4K UHD video
- SanDisk QuickFlow Technology
- Designed for sequential burst photography
- Temperature resistant
- Waterproof
- Shock resistant
- X-ray resistant
- Dimensions: 31.92 × 23.91 × 2.17mm
- Weight: Approx. 1.67g
- Operating Temperature: -25°C to 85°C
- Non-Operating Temperature: -40°C to 85°C
- Warranty: Lifetime Limited Warranty in eligible regions
- RescuePRO Deluxe 2-year software offer Sandisk
Compatibility
Compatible with devices supporting:
- SDXC
- SDXC UHS-I
Common compatible device categories include DSLR cameras, mirrorless cameras, camcorders, laptops, card readers, and other equipment with compatible full-size SDXC slots. Device support for the card's 256GB capacity and speed class should be confirmed before purchase.

Ideal For
DSLR cameras, mirrorless cameras, professional photography, 4K UHD recording, burst photography, travel photography, sports photography, video production, content creators, and users requiring fast high-capacity SD storage.

Why Buy from QUTECH?
Genuine SanDisk products, competitive prices, fast delivery across Malé & Hulhumalé, ferry delivery available to other islands, and secure online shopping.