Summary: I used this to replace the CPU in my Dell Latitude E6400 and it works GREAT! I did have to clean the old gunk off of the heat sinks, replacing it with new high-end thermal grease, and also cleaned out the dust around the fan, etc.. I've had it for about a year now, and it is still running great. It's one of the highest speed processors you can get for the Dell E6400, at one of the lowest prices.
Summary: I had a T4300 and I installed this. Big diference with big RAM improvements due to the bigger cache (1MB to 6MB in the T9600). The only problem I've now its the overheating in my laptop. I've solve that with a USB fan pointed directly to the air flow entry.
A great processor which is very powerful and a very good price
10 March 2014
Summary: This processor is absolutely the best thing I ever bought . T9xxx whole series of processors are the best processors for a good price, which can upgrade your older laptop . Alone at home I have two laptops with these processors. In an older laptop with DDR2 memory , I bought a T9300 processor . The second newer laptop with DDR3 I bought here on eBay processor T9600 and I have to admit that the performance of this processor is amazing .
Summary: CPU arrived in a normal bubble-pack envelope, CPU itself was in a plastic ESD container, hard to tell if it's used or new. Regardless, it works fine, and has made a noticeable improvement on the old laptop I installed it in over the T6400 it came with from the factory.