About 18 months ago I had grown totally frustrated with the inadequate memory of my desktop and laptop computers. I contacted the manufacturers. Since my computers were more than 4 years old, they recommended that I contact Crucial for more memory. I was reluctant to purchase items from an unknown vendor on the Internet. But since the computer companies recommended Crucial I followed their advice. I was impressed with how quickly their site found the correct memory board, the LOW cost and the promised shipment. Well, in about 5 or 6 days I got the memory (shipped free). They went right into my computers without any problems. I turned them on and BANG they were twice as fast as before. It was like I got two brand new computers. They have worked perfectly ever since. So this year when I wanted more memory, I didn't hesitate to go back to Crucial. They are everything they claim to be--a reliable, cost-effective, and an efficient company. I recommend them highly.