Almost impossible to find when you finally figure out that is what you need. Best Buy and WalMart is $19.99 if they are close and open. In 16 year I have had 6 fail; 2 on older monitors and 4 on different computers; some I have built, some I have bought. This is an essential part of my toolkit and has been for the last 12 years. Always keep a spare!!
I have purchased hundreds of IEC power cables from Monoprice. They all are very solid cables and I have not had any problems with them. I appreciate that they are available in several wire gauges as well as multiple lengths.
PROS: Great cable with may optional configurations. Good price.