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Patriot Memory > 
Item#: N82E16820220722

Patriot EP Pro Series 64GB UHS-1 Secure Digital Extended Capacity (SDXC) Flash Card Model PEF64GSXC10333

  • 64GB
  • UHS-1 3.0
  • Up To 90MB/s Read; Up To 50MB/s Write
  • Model # PEF64GSXC10333
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Learn more about the Patriot Memory PEF64GSXC10333


EP Pro Series
Secure Digital Extended Capacity (SDXC)


Speed Class Rating
UHS Speed Class 1
Read Speed
up to 90 MB/s
Write Speed
up to 50 MB/s


Complies with SDA 3.0 specifications (host device must support SDXC for 64GB and 128GB)

Speeds up to 90MB/sec read and up to 50MB/sec write (Speed is based on internal testing on SD 3.0 and UHS-I mode environment)

Performance may be lower depending on host device.

UHS-I (Ultra High Speed) Compliant

Class Speed 10

Write protection switch to avoid accidental data deletion

Voltage Range: 2.7 - 3.6V

Quick Info


  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years

Customer Reviews of the Patriot Memory PEF64GSXC10333

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  • Henly H.
  • 4/21/2014 8:03:34 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggsPatriot Didn't Honor Rebate

Pros: Fast and extremely reliable. I purchased this so that I could use it in my Panasonic DMC-G3 camera and not worry about deleting photos as much as before.

Cons: Fast

Other Thoughts: First, Patriot didn't honor the rebate, I didn't inted to buy this card for full retail price a few months ago. It would have been about 50% off had I gotten the rebate. I'm a bit mad that they claimed I didn't include all of the necessary proof of purchase.

Secondly, on occasion pictures get corrupted, I am not sure if the issue is the card or my card reader. It's most likely the latter since it occurs when I place the card back in my camera after transferring to my PC. Other wise, no complaints.

Did you find this review helpful? Yes No

  • Liang C.
  • 11/15/2013 12:16:31 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

3 out of 5 eggsSlow read speed

Pros: N/A

Cons: While write speed is good for HD video recording, the read speed is well below spec, quite noticeable when copy a full 64GB of video from the card to a computer equipped with fast reader.

Did you find this review helpful? Yes No

  • Lynn D.
  • 8/15/2013 4:29:24 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggs

Pros: The card's speeds are as advertised. I ran multiple benchmark write and read tests with ATTO and the results are as follows.

test 1: read 83Mb/s write 44Mb/s
test 2: read 78Mb/s writer 39Mb/s

I ordered this card for my raspberry pi project and there seems to be no compatibility issues.

Cons: Nothing else.

Other Thoughts: Going to buy the more of these cards and raspberry pi if my Ubuntu server project works out completely.

Did you find this review helpful? Yes No

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Home > 
Computer Hardware > 
Flash Memory & Readers > 
Flash Memory > 
Patriot Memory > 
Item#: N82E16820220722
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