Silicon Power S55 Slim 240GB SATAIII SSD

Article Index
Silicon Power S55 Slim 240GB SATAIII SSD
Features and Specifications
SSD Testing Info and Benchmarks
Benchmarks Continued
Final Thoughts

Product: Silicon Power S55 Slim 240GB SATA III SSD
Provided By: Silicon Power
Price: ~$169 Online


Silicon Power is probably not the first name you think of when you start shopping for SSDs, yet they have some pretty interesting products.  Today we are looking at one of their newest offerings that is a slim (7mm) drive that fits into the latest generation of Laptops that require these height-restricted drives.  At the start of 2013, there were hardly any companies making drives this thin, but as laptops and ultrabooks have changed the playing field, companies have had to change their gear to stay in the game.  Silicon Power has quite a few different models and the S55 is one of their mainstream units that fits right in below the Velox series and is a very affordable unit for system upgrades.

If you are building a screaming high-end system you may want to consider another drive, but if you are building a nice system upgrade over a standard HDD or even over a SATA II SSD, this drive will fit the bill nicely - for a good price.  As we carry on through this review, we'll see how well this drive performs and see if Silicon Power has marketed this drive to the right audience.  They claim it's for mainstream, but we'll see if it is above, or below this mainstream target.

Box Front
Box Front

Box Back
Box Back


First Look:

The Silicon Power S55 comes with pretty much nothing in terms of extras.  There is a 60-Day Trial of Norton Security included as a download, but in the box you simply get the bare drive and some screws.  This is just dandy though as most people that will buy a 7mm drive will be using it in a portable system, so a desktop bracket isn't really necessary.  The drive has a nice look though and the top and bottom of the unit are metal.

Drive Front

Some thinner drives - and even earlier 9.5mm drives had one side plastic.  Generally speaking, the top was made of plastic on these units and it was discovered that they had a higher failure rate.  This failure was caused by chassis flex in a laptop and with the PCB of the SSD only secured to thin metal side of the SSD, it too would flex.  It doesn't take long to flex one of these drives long enough to start damaging the traces leading to the NAND memory or other components.  That's why today we see most SSDs with full metal bodies.  Silicon Power didn't cut corners here, and while it's not tank and CNC machined like the Vector from OCZ, it's still a sturdy case that should provide a stable home for the internal components.


The Silicon Power S55 Slim isn't all that exciting to look at, but thankfully the 7mm form factor is much more versatile in today's laptops and ultrabooks.  It has identical measurements to the OCZ Vector, OCZ Vertex 3 LP and the Crucial M500.  It should fit in any system that supports low-profile or standard-height 2.5" HDDs.

Before we really tear into the drive on the following pages, I thought I'd drop a teaser here - just before we look at the features, specifications and other technical details about this drive.

Drive Top Off


Silicon Power has deviated from the mainstream controllers on this drive and we'll get more into that as we get deeper into this review.