We have found SanDisk cards to be the most reliable with all Song Meters. PNY and Kingston cards also work well.
Regardless of the brand you use, ensure that it is from a reliable electronics seller. Counterfeit cards are commonly sold on platforms with many third-party sellers and are more likely to malfunction than genuine cards.
Currently, all new SD cards produced by major brands are fast enough to be used with a Song Meter. Faster cards may allow you to back up your data to a computer more quickly, but the Song Meter itself does not benefit from a faster card beyond its minimum requirements.
If you plan to use older SD cards, make sure it has a speed class marking that matches at least one of the following:
SD and microSD cards with a capacity between 4 GB and 32 GB are classified as "SDHC", while cards between 64 GB and 2 TB are classified as "SDXC."
Our oldest Song Meter recorders, the Song Meter SM1, SM2, SM2+, SM2Bat, and SM2Bat+, only support SDHC cards. Using SDXC cards with these recorders can result in missing audio.
All of our more recent Song Meters support both SDHC and SDXC cards. This includes the following models: