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Side by side	SANDISK 256GB Extreme PRO SD Memory Card, Up to 200MB/s Read Speeds, UHS-ICheck price on Amazon	SANDISK 64GB Extreme PRO SDXC UHS-I Memory Card - C10, U3, V30, 4K UHD, SD Card - SDSDXXU-064G-GN4INCheck price on Amazon
Buyer rating	★★★★★4.8	★★★★★4.8
Price	$89.16	$34.07
Our score	8.0/10	7.5/10
Buyer ratings	70,383 ratings	20,009 ratings
Brand	SANDISK	SANDISK
Best for	Demanding 4K video and high-burst still photography	Moderate-bitrate 4K video and RAW stills
Read offload speed	8.2/10	—
Sustained write floor	7.0/10	—
Physical durability	8.6/10	—
Value for money	6.8/10	6.8/10
Camera compatibility	9.2/10	—
Sustained write performance	—	7.5/10
Offload efficiency	—	8.2/10
Build quality	—	8.0/10
Burst buffer clearing	—	7.2/10
Memory Storage Capacity	256 GB	64 GB
Compatible Devices	Car Navigation Systems, Computers, Digital Cameras, Home Theatre Devices	Car Navigation Systems, Computers, Digital Cameras, Home Theatre Devices
Hardware Connectivity	SDXC	SDXC
Item Weight	2 g	2 g
Item Dimensions L x W	1.26"L x 0.9"W	1.26"L x 0.94"W
Item Dimensions D x W x H	0.04"D x 0.94"W x 1.1"H	0.09"D x 0.94"W x 1.26"H
Flash Memory Type	SDXC	SDXC
Additional Features	Temperature Proof, Water Proof, X Ray Proof	—
Read Speed	200 megabytes_per_second	200 megabytes_per_second
Media Speed	140 MB per second	90 MB/s
Secure Digital Association Speed Class	Class 10	Class 10
Flash Memory Video Speed Class	V30	V30
Warranty Type	manufacturer	Lifetime Limited Warranty
Color	Dark gray/Black	Dark gray/Black
Model Name	SanDisk Extreme PRO SD UHS-I Card	SanDisk Extreme PRO SD UHS-I Card
Brand	Sandisk	Sandisk
Model Number	—	SanDisk Extreme PRO SD UHS-I Card
Our verdict	The Extreme PRO tier is built to maintain the write throughput needed for intensive burst photography and continuous 4K video. It represents a larger financial investment, but it protects against card-induced buffer lockups. Check whether your camera supports proprietary UHS-I overclocking to achieve the full 200MB/s transfer rate.	The V30 rating guarantees the 30 MB/s sequential write speed required to prevent dropped frames in basic 4K recording. At 64GB, capacity runs out quickly under modern codecs, making it better suited for stills or short clips. For sustained high-bitrate or high-frame-rate video, plan on faster V60 or V90 media.
Pros and cons	+ Professional-tier sustained write performance + High 200MB/s maximum read capability + Large 256GB capacity for extended production days − Noticeably higher price point − Peak speeds require compatible proprietary card readers	+ V30 rating prevents dropped frames in standard 4K + Consistent write reliability across camera brands + Cost-effective option for routine photography − 64GB capacity limits long continuous takes − UHS-I interface caps practical offload speeds

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