does not mention cards > 64 gb.
As this is a market that changes at a fast rate (video recording puts a lot of pressure to makers), I wonder if this information is still valid
or perhaps there are cards > 64 Gb that could be used (and have been tested) with Audiomoth nowadays.
I suggest you clearly note the date in this type of guides.
I have tried larger cards including the SanDisk Extreme 400 GB card, and I had no problem. However, larger cards draw more power for the same storage. Much of your battery capacity will go to the SD card. Recording continuously at 192 kHz, the 64 GB card draws 25 mA and the 400 GB card draws 36 mA (for an AudioMoth Dev 1.0.0 board). At a continuous 384 kHz, the values increase to 42 mA and 62 mA (respectively). Not only does your power requirement go up with card size, battery capacity in Ah goes down at these higher draw rates ... a double whammy. Ideally you'll want to match your card to your battery capacity to maximize data for a deployment. Using 3 alkaline AA batteries at high sampling rates (192 or 384 kHz), a 128 GB card is likely to be your best choice to maximize data collections. I plan to test that card next.
Any news regarding the updated sd guide? Please state the date of publication on it.
Since early April this year (2021) I'm routinely using 128GB SDXC memory cards. 113 GB available, holds 10 nights (8 hours) at 192 kHz.