hi, I receive my WD1001FALS, is great so silence! peace of mind, I was think on buy the "green" for silence but I choose this "black" for better performance and speed and warranty 5 years... and is great. I buy on OWC, the only problem, they dont say taht is NOT! A RETAIL BOX, is a OEM, $139! on amazon $100 for the same product! I buy on OWC beacuse I think that I'll recieve a retail box... but well the hd is silence, Iam happy with that!