Question RAM compatibility ?

[SWIZ]

Hello, just wanna ask a quick question here. I’ve got a secondhand pc that I’ve bought recently, and I was thinking about upgrading it's RAM from 16Gb to 32GB.
I know it’s better to buy the whole thing at once, but I think I found my exact RAM and I wanna know whether it is compatible:
https://www.amazon.com/CORSAIR-Vengeance-3000MHz-Desktop-Memory/dp/B07D1XJWSJ

And here’s the same RAM in my country (at least I believe it's the same):
https://catalog.onliner.by/dram/corsair/cmw16gx4m2c3000c

And here’s my current RAM:

 

[CountMike]

Here’s my current memory:

Still better to change whole thing. Also but depending on CPU and MB, two sticks have better chance of working full speed than 4 because of possible IMC overload. With 2x16GB you can get faster RAM.

 

[geofelt]

The ram you found is not the exact same.
Ram is sold in kits for a reason.
A motherboard must manage all the ram using the same specs of voltage, cas and speed.
The internal workings are designed for the capacity of the kit.
Ram from the same vendor and part number can be made up of differing manufacturing components over time.
Some motherboards, can be very sensitive to this.
This is more difficult when more sticks are involved.
Ram must be matched for proper operation.

You can sometimes compensate for errors by increasing the ram voltage in the motherboard bios if you have a motherboard that permits such settings.

But, intel is quite tolerant of mismatched ram.
What is your plan B if the added ram does not play nice?

 

[SWIZ]

The ram you found is not the exact same.
Ram is sold in kits for a reason.
A motherboard must manage all the ram using the same specs of voltage, cas and speed.
The internal workings are designed for the capacity of the kit.
Ram from the same vendor and part number can be made up of differing manufacturing components over time.
Some motherboards, can be very sensitive to this.
This is more difficult when more sticks are involved.
Ram must be matched for proper operation.

You can sometimes compensate for errors by increasing the ram voltage in the motherboard bios if you have a motherboard that permits such settings.

But, intel is quite tolerant of mismatched ram.
What is your plan B if the added ram does not play nice?

I see, I was just considering future possible updates, however for the price of those 2x8 sticks, I have found the next speed(3200) Corsair RAM which has 4x8GB sticks, so I think it’s not really relevant anymore to buy 2 more if I can replace all 4 for the same price.