In this day and age, 128GB for a hard-drive seems incredibly low. For good reason, since the “smallest” most people will buy nowadays is 320GB and 750GB are only $200. However, this 128GB is special. It’s a solid-state drive that has flash-based innards, which means it’s far more durable than a regular hard drive, but is it faster?
According to the specs, this drive should top out at 60MB/s read and 40MB/s write. Where is does excel though is with latencies. But is that little gain worth it? Well, considering the fact that the drive retails for $4,600… that might be a question you have to make.
128GB of fast flash doesn’t come cheap, though. When the SATA25 hits Newegg and other online retailers at the end of the month, it’s expected to sell for a whopping $4600, or roughly $36 per gigabyte. For web servers, $4600 for a 128GB solid-state drive is a lot cheaper than the equivalent in DRAM, so the SATA25 may actually be a pretty good deal.
Source: Tech Report