Hello. I have a Dell Inspiron 5160, which has a 100GB hard drive, interface type ATA-6. I have 5GB left, so I figured more storage was needed. I purchased a Seagate Momentus 5400.4 250GB hard drive, model ST9250827AS. Here is the problem. I included the model number in case I write the following wrong, the whole problem is in the look of the pins. I went to install it and saw very quickly the interface pins are very different. On the notebook computer the interface has 42 straight pins, not including the jumpers. On the new hard drive, I can't even count pins because it is a different interface completely. There is a break in the pins...so its hard to describe, but I would say there are two banks of pins. One bank has 15 pins of different lengths and the other bank has 7 pins, also of different lengths. The jumpers seem to be in the same place though.. Has notebook hard drives changed since I bought it in 2004? Is there an adapter that I can get? If so, where could I get one and what would it be called? HELP Thank you for your help.