Pros: Good price, easy to set up.

Cons: We lost power and the unit no longer works. I used the NASNavigator2 software to check the status. It said "EM Mode" and to contact my local support. I emailed Buffalo support a week ago but never heard from them. I am unable to get my data until I hear back from them. Since it's under warranty, I can't disassemble it to get the hard drives.

Overall Review: This works fine, until the power goes out. I'd advise to either get a UPS, or pay more for a better quality product.

Pros: I purchased the TP-WPA4220KIT due to the high rating. The installation was very quick and painless, just plug it in to each outlet and router and you're done.

Cons: The device continuously tripped my circuit breaker, literally leaving me in the dark.

Overall Review: After much research, I learned that it's may be due to the arc (breaker) faults on high frequencies, and these devices transmits data on the powerline at high frequencies. I did find a suggestion that HomePlug AV2 supported devices with a ground plug may fair better. I can not recommend this device and will be returning it.

Pros: Inexpensive

Cons: Worked for 8 months, then my Nikon D5000 Camera was unable to read it and said that the card may be defective. I even tried formatting the card by zeroing it out on a computer.

Overall Review: Spend a bit more and get a good quality card.

Pros: Cheap RAM

Cons: Constant random crashes. My laptop has never crashed until I installed 2 GB of this RAM. Now I constantly get random crashes (memory dumps).