Bought wrong DDR4 Frequency by mistake

[Aditya123456]

Hello, So there was an Amazon lightning Deal, and I clicked on the wrong RAM card for the deal.

Now my MB is:
ASUS H170 PRO Gaming
1st RAM Stick: Kingston HX421C14FB2/8
2nd RAM Stick: Kingston HX424C15FB2/8

Do you guys think I should return this stick and get the original one for a much higher price or stick with this one?
CPU Z Reports:

[Memory]https://drive.google.com/open?id=0B1unpBUAFHxeUVVJNldoUXo5azg[/img]
[Slot #2]https://drive.google.com/open?id=0B1unpBUAFHxeejNMb290ZC1uMWc[/img]
[Slot #4]https://drive.google.com/open?id=0B1unpBUAFHxeZjR1OEU3Z3VqRHM[/img]

This was my 1st time upgrading DDR4 and I thought they might be compatible so I paid for the delivery.

 

[rgd1101]

return the new stick, sell the original stick, and buy a 2x8GB kit.

 

[Aditya123456]

return the new stick, sell the original stick, and buy a 2x8GB kit.

I was Actually thinking so.
Do you a price of INR 11,280 is OK for a 16 GB 2133MHZ Stick?
Also, which one would be faster? 2x8GB or 1x16GB.
I was actually hoping to hold out until DDR4 prices fell. But that doesn`t seem to happen...
Do, which one do you think should I go for?

 

[MrN1ce9uy]

Get 2x8GB for dual-channel. And might as well get faster than 2133MHz while you're at it.

While you could likely get both of those sticks to run at the same speed on your Z170 mobo, it is best to run the same exact memory that comes in a kit.

 

[Aditya123456]

Get 2x8GB for dual-channel. And might as well get faster than 2133MHz while you're at it.

While you could likely get both of those sticks to run at the same speed on your Z170 mobo, it is best to run the same exact memory that comes in a kit.

Hello, my mobo isnt Z170, H170.

 

[Aditya123456]

Also, I am more concerned with the life of the MB and the RAM. Will it affect that?

 

[MrN1ce9uy]

Get 2x8GB for dual-channel. And might as well get faster than 2133MHz while you're at it.

While you could likely get both of those sticks to run at the same speed on your Z170 mobo, it is best to run the same exact memory that comes in a kit.

Hello, my mobo isnt Z170, H170.

Sorry I misread that. You should do as rgd1101 said and get rid of both to buy a kit of 2x8GB.