Which RAM to choose for iMac 27 late 2012?

Question

RAM

Tell me, I want to increase the amount of RAM. Now 16 GB (2 sticks of 8 GB), I want to buy 2 more sticks of 8 GB.
What memory is suitable for iMac 27 late 12?

Answer 1

Changed to iMac (Mid 2010), this is what I took from the system information:
PC3-10600
no buffering
without parity
204 pins;
DDR3 SDRAM, 1333 MHz
But the replacement of the HDD or DVD drive with an SSD will provide a much greater increase in performance.