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VeraCrypt Encrypted Sandisk Extreme Pro SDXC Card Speed Test

Here I’ve conducted a simple read/write speed test on a VeraCrypt encrypted partition with Sandisk’s Extreme Pro SDXC card. These are the specs:

  • Card: Sandisk Extreme Pro SDHC/SDXC
  • Capacity: 512GB
  • Read Speed: Up to 95 MB/s
  • Write Speed: Up to 90MB/s
  • Partition Type: VeraCrypt Volume
  • Encryption Algorithm: AES
  • Hash Algorithm: SHA-512

Sandisk Extreme Pro 512GB SDHC/SDXC Card

In all tests I’ve copied the Ubuntu Desktop File which is 1.51GB.

(1) First between my SSD drive (Samsung V-NAND SSD 850 EVO with write/read speeds of 500MB+/s) and the SDXC card’s default exFAT partition.

(2) Second between my SSD drive and the VeraCrypt encrypted partition.

Speed Test

Mounting the drive took around 5 minutes each time.

Part 1: Test Without Encryption

Write to Ready exFAT Partition

Write from SSD to default exFAT partition was 41.74M/s.

Write From SDXC exFAT to SSD

Copy from default exFAT partition to SSD drive was 53.11M/s.

 

Part 2: Test With VeraCrypt Encryption

Write to Encrypted VeraCrypt Partition

Write from SSD drive to encrypted VeraCrypt volume was 20.59M/s.

Copy from Encrypted VeraCrypt Partition

Copy from on encrypted VeraCrypt volume to my SSD drive was 30.58M/s.

 

I think it’s fair to say that it had a significant impact on write/read speeds and some may want to seek faster performing SD cards for better performance.

Care and share, let's call it fair! -David

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