Question DRAM cache in ssd

[WinXPro04]

Hello guys, I have this ssd ( SanDisk SD7SB3Q-128G-1006) how can I know if it has a DRAM cache without open it up?

 

[alceryes]

These aren't the best SSD drives but they do appear to have DRAM cache -
http://downloads.sandisk.com/downloads/datasheet/x300s-datasheet.pdf