excellent but beware of dimensions for certain laptops

I bought 2 of the Extreme 120. According to SanDisk website (http://www.sandisk.com/products/ssd/sata/), the write-speed is better than that of Ultra Plus models. I tried to boot 2 Dell Latitude E5430 (1 with Ultra Plus, 1 with Extreme II). Both showed same result in that regard. There may be slight difference, but it's not noticeable. The Extreme II has 8GB less comparing to the Ultra Plus, though. One important difference is in the dimension. The specs posted on SanDisk website showed both models are 7mm thick; where in fact, the Extreme II that I got was actually thicker by possibly 2mm. I'm not exactly sure of the mm difference, but it is for sure thicker. This caused a problem when using the Extreme II in the Latitude E5430. Since it's a bit thicker, it cannot be seated 100% all the way with the SATA connectors. The hard drive bay of the laptop can handle the drive, but there is a little notch at the corner of the bay that prevents the Extreme II to be fully connected to the SATA connectors. For that reason, I had to resort to using the Ultra Plus model instead. Just a note of caution as I was able to put the Extreme II to use in Desktop PCs.Read full review