SanDisk SDSDXEP-512G-GN4IN Extreme PRO 512GB SDXC UHS-II Card - 6K/4K

Name: SanDisk SDSDXEP-512G-GN4IN Extreme PRO 512GB SDXC UHS-II Card - 6K/4K UHD
Brand: SanDisk
SKU: SDSDXEP-512G-GN4IN

Overview

The SanDisk Extreme PRO SDSDXEP-512G-GN4IN is a 512GB SDXC UHS-II memory card built for professionals who need dependable, high-speed storage in demanding shooting environments. With a Video Speed Class 60 (V60) rating, it sustains the minimum 60MB/s write throughput required for smooth 6K and 4K UHD video capture on compatible MIL and cinema cameras. Write speeds reaching up to 150MB/s also make it well-suited for continuous burst mode photography and time-lapse sequences where buffer clearing speed is critical.

Where this card particularly shines is in post-production efficiency. Read speeds up to 280MB/s via the UHS-II interface dramatically reduce the time spent transferring large video files and RAW image libraries to a computer. The generous 512GB capacity means fewer card swaps during extended shoots, which is especially valuable on location or during event coverage. The card maintains backward compatibility with UHS-I slots, though users will need a UHS-II reader or camera body to unlock the full speed potential. For professionals who need a reliable, high-capacity card that keeps pace with modern cinema and mirrorless camera systems, this Extreme PRO delivers consistent performance across the board.

Key Features

For prosumers and professionals shooting with MIL and cinema cameras

Record cinema-quality 6K and 4K UHD with Video Speed Class 60 rating (Full HD (1920x1080), 4K UHD (3840x2160), and 6K (6144x3160) video support may vary based upon host device, file attributes and other factors. See HD page on official SanDisk website. Video Speed Class 60 (V60), sustained video capture rate of 60MB/s, designates a performance option designed to support real-time video recording with UHS enabled host devices. See the SD Association’s official website for additional details.)

Capture superlative continuous burst mode and time lapse images with shot speeds up to 150MB/s (Up to 150MB/s write speed. Based on internal testing; performance will vary based on host device. 1MB = 1,000,000 bytes.)

Save time with card offloads reaching transfer speeds up to 280MB/s (Up to 280MB/s read speed. Based on internal testing; performance will vary based on host device. 1MB = 1,000,000 bytes.)

Store more high-resolution files with capacity options up to 512GB (1GB = 1,000,000,000 bytes. Actual user storage less.)

Specifications

Brand

SanDisk

Model

SDSDXEP-512G-GN4IN

Capacity

512 GB

Flash Memory Type

SDXC

Bus Interface

UHS-II

Speed Class

Class 10

Video Speed Class

V60

Read Speed

Up to 280 MB/s

Write Speed

Up to 150 MB/s

Dimensions

0.09"D x 0.94"W x 1.26"H

Weight

1.67 Grams

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Pros & Cons

👍 Pros

Read speeds up to 280MB/s make offloading large video files and photo libraries significantly faster.
V60 speed class reliably sustains 6K and 4K UHD recording without dropped frames.
512GB capacity holds substantial amounts of high-resolution footage before needing to swap cards.
Write speeds up to 150MB/s support demanding continuous burst and time-lapse shooting.
Backward compatible with UHS-I devices for flexible use across older and newer gear.

👎 Cons

Requires a UHS-II compatible device to reach the advertised 280MB/s read speed.
Priced at a premium compared to UHS-I SDXC cards with the same 512GB capacity.
Does not reach the fastest UHS-II speeds available, as some competing cards offer 300MB/s reads.
No built-in Wi-Fi or wireless transfer capability.

Frequently Asked Questions

What is the Video Speed Class rating on this card, and what does it mean?

This card carries a V60 (Video Speed Class 60) rating, meaning it sustains a minimum write speed of 60MB/s during video capture — sufficient for recording 6K and 4K UHD footage without dropped frames.

What are the maximum read and write speeds of the SDSDXEP-512G-GN4IN?

The card offers read speeds up to 280MB/s for fast file transfers and write speeds up to 150MB/s for high-speed burst shooting and video recording.

Is this card compatible with UHS-I devices?

Yes, UHS-II cards are backward compatible with UHS-I devices, but you will only achieve UHS-I speeds in those devices. To take full advantage of the 280MB/s read speed, you need a UHS-II compatible camera or card reader.

How much actual storage space is available on the 512GB card?

Formatted capacity is slightly less than 512GB due to how storage is calculated. You can expect roughly 465–475GB of usable space after formatting.

Does this card support continuous burst mode photography?

Yes, with write speeds up to 150MB/s, the card is designed to keep up with continuous burst mode shooting and time-lapse capture on compatible cameras.