In case of type 58 panels (for example eTOP40) 32Mb memory cards are supported starting from firmware version 5.12M.
In case of type 38 panels (for example eTOP05 for example) 32Mb memmory cards can be used only on panels with HW version 38B or higher, starting from firmware 5.12M.
38A panels supports only 8Mb cards and only some specific producers.
Operator panels belonging to families eTOPxxB and eTOPxxC natively supports 32Mb memory cards.