This download contains special firmware for the SNAP PAC S-Series controllers that upgrades the controller bootloader (or "loader").

Beginning with R6.1b, the loader upgrades newer SNAP PAC controllers to allow the use of high-capacity (up to 32 GB) microSDHC cards. SNAP PAC R9.4a (or higher) firmware must also be installed with the R6.1b (or higher) loader to obtain microSDHC card support.

See Opto 22 KB article KB83929, Updating SNAP PAC Controllers to Use microSDHC Cards, on the Opto 22 website for important information on using the loader with SNAP PAC controllers.

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