Commissioned by 2 to change from 1GB (2x512MB) of RAM to 2GB (2x1GB). Installation in 2 minutes, no compatibility problems (Fujitsu amilo xi 1526 2006), very reasonable price. Ideal for relieving a computer that has 7 years (do not expect a revolution either). The only complaint is not about the product itself which is perfect but the amazon package a bit light for this type of product (single unprotected cardboard envelope).