SD card Slot Vs USB 3.1 SD card reader. Raspberry Pi 4 8GB. A2 SD Card Speed test.

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SD card Slot Vs USB 3.1 SD card adapter. Raspberry Pi 4 8GB. A2 SD Card Speed test.


Raspberry Pi 4 8gb
Overclocked to 2147Mhz
Sd cards running Raspberry Pi OS 64bit

Amazon links

Super fast Corsair 128GB Voyager
https://amzn.to/2Y5a130

Magix A1 sd card
16gb
https://amzn.to/3d9rVry
32gb
https://amzn.to/36vZlyg
64gb
https://amzn.to/2AYiGMG
128gb
https://amzn.to/3eo3eYJ

Sandisk Extreme A2
https://amzn.to/30gevGE

Kingston A2
https://amzn.to/2XCkofx

Kingdian SSD
https://amzn.to/2UxuwEL


Pi Speed test Videos

Raspberry Pi 4 USB boot. USB to sata cable test. SSD, HDD Raspberry Pi OS 64bit.
https://youtu.be/BEzO4mQcZp8

Raspbian speed test. USB Boot. SD card Vs SSD Vs Physical HDD Raspberry Pi 4. Diagnostics
https://youtu.be/kZcg87QprLQ

Fake A1 micro sd cards? Amazon Prime misleading description. Raspberry Pi 4. Netac Vs Magix.
https://youtu.be/xARTzwozWhU

All of my Pi videos are here (170 plus)
Raspberry Pi 4 Raspbian and more
https://www.youtube.com/playlist?list=PLMJAjiTgBtFnaITgDfjTnsL9RlnyPTl7M

Results
A2/A1 SD Vs USB 3.1
Pi 4 4GB v1.2

Magix 16GB A1
Sequential write speed 29574 KB/sec (target 10000) - PASS
Random write speed 847 IOPS (target 500) - PASS
Random read speed 3056 IOPS (target 1500) - PASS

Magix 16GB A1 with USB 3.1 Integral
Sequential write speed 37236 KB/sec (target 10000) - PASS
Random write speed 886 IOPS (target 500) - PASS
Random read speed 2323 IOPS (target 1500) - PASS

Sandisk 64GB Extreme A2
Sequential write speed 32204 KB/sec (target 10000) - PASS
Random write speed 894 IOPS (target 500) - PASS
Random read speed 2077 IOPS (target 1500) - PASS

Sandisk 64GB Extreme A2 with USB 3.1 Integral
Sequential write speed 64822 KB/sec (target 10000) - PASS
Random write speed 603 IOPS (target 500) - PASS
Random read speed 1713 IOPS (target 1500) - PASS

Kingston 64GB Canvas Go plus A2
Sequential write speed 32251 KB/sec (target 10000) - PASS
Random write speed 1521 IOPS (target 500) - PASS
Random read speed 3621 IOPS (target 1500) - PASS

Kingston 64GB Canvas Go plus A2 SD with USB 3.1 Integral
Sequential write speed 77191 KB/sec (target 10000) - PASS
Random write speed 1625 IOPS (target 500) - PASS
Random read speed 2744 IOPS (target 1500) - PASS



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Tags:
a1 vs a2 sd card
micro sd
u1 vs u3
application performance class