Thread: Libra 2 Rev 3 Slow SD Card
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Old 06-07-2025, 04:11 PM   #3
JSWolf
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Posts: 79,796
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Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
Quote:
Originally Posted by zerius View Post
Just wanted to share that my 2023 revision Libra 2 white came with a extremely slow internal SD card, which caused slow page turns, slower sleep and wake.

If I didn't have my wife's gen 1 libra 2 to compare, I would have just assumed it was the processing power of the device. However, upon taking the device apart and taking the SD card out - the 1st Gen Libra 2 had a SD card that was around 7x faster in RND4K writes and maybe 2x faster RND4K read vs the card that came with the 2023 revision.

I have replaced both with RASPBERRY PI SD CARD - 64GB, from Digikey, which from both synthetic benchmarks and also empirical testing, performed the quickest with sleep/wake and page turns - close seconds were the Lexar Silver Plus 64gb and the Kingston Canvas Go! 64gb. The rasperry pi card was both cheaper and faster - likely more optimized for smaller reads and writes, instead of writing 4k video.

The difference is night and day, pages turn instantly.
An A2 MicroSD card will be faster then an A1 MicroSD card. So if you don't have an A2 card, that's what you want. Watch the video and you'll see.
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