The major issue with SSD adoption over the past few years has been price, the astronomically high price when you are counting in hundreds of gigabytes. In today's comparison review we are going to look at 8 popular SSDs that cost $100 or less and feature capacities of up to 128GB.

The contenders include the OCZ Vertex 4 128GB, Samsung 840 120GB and Crucial m4 128GB. The most affordable high-capacity SSD featured in our roundup is the Kingston SSDNow V+200 120GB, while the OCZ Vertex 4 64GB, Crucial m4 64GB and Samsung 830 64GB should all offer stellar performance for under $80.

Not only are SSDs faster than HDDs, but they also consume less power and generate less heat. They're quieter, more reliable and more compact than their spinning counterparts. Talking about compact...

We recently took notice when Crucial announced its m4 mSATA SSD in a 256GB capacity at under $1/GB. The mSATA drive is tiny compared to Crucial's standard 2.5" m4, and despite the size difference, both 256GB models feature the same read and write speeds of 500MB/s and 260MB/s -- an exciting prospect, indeed. Assuming there are no catches, Crucial's new mSATA offering could become the go-to solution for ultraportable upgrades...

By mid 2012, SSD prices fell through the floor, costing approximately half as much as last year. Granted, that's still nowhere near as economical as standard hard drives, so companies have continued to offer affordable solutions in addition to their high-end series to drive sale volumes.

Such is the case with OCZ and the Agility 4, a budget-minded counterpart to the Vertex 4 that employs cheaper NAND flash memory. In similar fashion we recently saw the arrival of the Crucial v4 series. With both the Agility 4 and Crucial's v4 priced at just under $200 for 256GB models, it seems we have the makings of a value-driven shootout...

Although SSD prices have fallen rapidly over the last three years, they haven't fallen rapidly enough some might say. According DigiTimes' all-seeing, ever-elusive "industry sources in Taiwan," many large players concur with that sentiment -- albeit for reasons none too charitable...

Last January, Crucial announced the Adrenaline SSD series. Not meant to replace their existing and well regarded m4 drives, the Adrenaline is a cache solution meant to work along your existing disk drive, using a 50GB SSD to act as solid state flash-based cache for your larger primary hard drive.

The Adrenaline doesn't require any special drivers as it uses the SATA interface, it can be installed at any point and can therefore be fitted to any computer without the need to reinstall Windows.

As a follow-up to last week's CES special feature and coverage, here are more of the products we observed and played with, along with photos taken during our journey to the event. As you've surely noticed, mobile tech consumed the event with seemingly every major company unveiling smartphones, tablets or ultrabooks. Nonetheless, we managed to lay hands on plenty of awesome PC hardware from the likes of Samsung, Silverstone, MSI, Razer, Roccat, Toshiba, Gigabyte and more...

Crucial announced worldwide availability of its next-gen SSD late last month. Known simply as the "m4," the company's latest entry is hailed as the successor to its award-winning RealSSD C300, promising to deliver more speed and higher capacities.

Considering its intended price point, we shouldn't expect the m4 to dethrone the OCZ Vertex 3 and perhaps not even Intel's SSD 510. Nonetheless, we could be in for a pleasant surprise if Crucial's newest contender delivers performance in excess of what the RealSSD C300 did in its heyday, so let's find out what the m4's made of.