Update: This deal is back to $149.99 for the 500GB on Amazon. It's not as low as Newegg's recent price drop to $130 but that deal vanished almost as quickly as it appeared.

The Samsung 850 EVO 500GB SSD is down to $149.99 on Amazon. On Aug 25, this SSD saw a similar price drop and went into a small bidding war with Newegg. Since then, it sold out on Amazon and the price leaped back into the $170s, so it's nice to see this deal come around again.

The 250GB version of the 850 EVO is down to $90 on Amazon. That's a match for its lowest price on Amazon and down from a $104 street price.

This is the perfect upgrade for a PC still running its operating system on a slower hard drive (are there any of you left?), or anyone using an older SSD that could do with a speed boost.

The 850 EVO is well-reviewed with a lot of positive results. Windows Central called it the Best Overall SSD for Windows PCs. CNET gave it 4.5 stars. The Wirecutter still considers it to be the best SSD for its balance of performance and price. AnandTech has one of the most thorough reviews of this SSD on the Internet and called it "yet another showcase of Samsung's engineering talent."

At this price, the 850 EVO is cheaper than even the more modern competition, like Crucial's MX300 SSD. It's not just cheap, it's also fast with read/write performance up to 540 MB/s and 520 MB/s, respectivelly.

Because Samsung designs SSDs with home-grown engineering, it's also built for the long-term with twice the endurance of the competition. It's capable of handling much heavier workloads, and Samsung backs all that up with a five-year warranty.

If you need help installing a new SSD, Windows Central has some tips for that.

If storage space is more important to you than speed, this SanDisk Ultra II 480GB SSD is also on sale for $140 at Best Buy. If you don't have a 2.5-inch drive bay on your desktop, you might need a 3.5-inch mounting bracket like this to fit it firmly where it belongs.

See at Amazon