Dimm Ddr Memory

How can I identify a stick of memory by looking at it?

Is there a way to visually distinguish between the different types of memory? Such as SIMM from DIMM? DDR from SDRAM?

The main difference between SIMMs and DIMMs is that SIMMs have a 32-bit data path, while DIMMs have a 64-bit data path

SDRAM sticks have 2 notches at the bottom…DDR sticks have only one