In the review I didn't cover the firmware on the Silicon Power Slim S70 because we're pretty much past that mess. Just about every manufacturer using SandForce hardware has released version 5.0.3 or 5.0.4 on their website. Silicon Power ships the Slim S70 with firmware 5.0.4 so you don't have to worry about updating the drive to get TRIM working efficiently.
Silicon Power's Slim S70 brings high performance to the 7mm form factor. We're starting to see more drives in this exciting form factor, but not every company has made the leap. Most of the ultrabooks we're seen so far ship with slow SSDs or pair a very small SSD with a mechanical drive, and that isn't the kind of performance you want in your new notebook.
A few notebook makers offer faster SSDs when you configure a custom notebook or ultrabook on their website, but the prices are usually pretty crazy, like a 128GB SSD for $350. The Silicon Power S70 240GB costs $199 and is a nice drop in replacement while giving you a lot of options for future use with new products using the 7mm form factor.
Tallying everything together the Silicon Power S70 240GB is a very nice SSD, but its price is just a little higher than we wanted to see, and the accessory package is a little thinner than we wanted to see. Without a desktop adapter bracket we really can't recommend this drive over a few others for desktop use. In a notebook or ultrabook where a desktop adapter bracket isn't needed is another story.
The Silicon Power S70 is power efficient and is one of the best drives we've tested when it comes to power draw so far. Most of the 7mm drives cost a little more and that's exactly what we're seeing with this drive. Once you calculate the 7mm tax, the S70 looks a lot better, but only for notebook and ultrabook use.