What 4GB Memory should I get for my H61 MoBo?

[ModernKamikaze]

http://pcx.com.ph/components/memory.html?limit=30

I ask because I do not know what type of memory it is compatible like 1333,1666, etc.

Can you guys give me budget to expensive memories I can get from that store that is compatible with Asrock H61M-DGS?
Thank you very much for the cooperation.

 

[ubercake]

1066 or 1333 is what you're looking for if you're not going to overclock:

If you need a good inexpensive kit at $28 USD:

http://www.newegg.com/Product/Product.aspx?Item=N82E16820148487

 

[ModernKamikaze]

1066 or 1333 is what you're looking for if you're not going to overclock:

If you need a good inexpensive kit at $28 USD:

http://www.newegg.com/Product/Product.aspx?Item=N82E16820148487

If I buy one of these:
http://pcx.com.ph/components/memory/corsair-2gb-ddr3-vs2gb1333d3.html

Can I buy another so it can be 4gb?