It's slightly more expensive than similar capacity SSDs, but it definitely compensates for this with its performance and durability, as well as the included "heatshield" options. These work exceptionally well, and this SSD has the lowest recorded max temperature (about 57℃) of any of the high-end PCIe 4.0 SSDs we've tested recently, including those on this list. The downside is its durability. The 970 EVO Plus has the lowest durability as measured by MTBF, rating only 1,500,000 hours, and its TBW rating at 2TB is 1200, matching the SN750, but lagging the XPG SX8200. At 256GB, it scores a rather low 150, the lowest of the three PCIe 3.0 contenders. The first attempt was a new form factor called mini-SATA, or mSATA. The boiled-down essence of an SSD with the shell removed, an mSATA drive is a bare, rectangular circuit board. (Most mSATA drives relevant to upgraders measure about 1 by 2 inches.) mSATA drives fit into a special slot in a laptop's logic board or on a PC motherboard. As the name suggests, the slot is a conduit to the Serial ATA bus in the system. The interface on the drive end is an edge connector on the PCB, as opposed to the usual SATA cabling. The mSATA drive also draws all the power it needs through the slot. (Credit: HP)

The PNY XLR8 CS3140 M.2 SSD is one of the best SSDs around, both for gamers and PC enthusiasts alike. Available in three capacities—1TB, 2TB, and 4TB—this SSD is a great swan song for the PCIe 4.0 era as PCIe 5.0 SSDs start to roll out. If the drive is compatible with a video game console, we will also measure the SSD's speed both with the console's own benchmarks but also through file copy operations to and from the main console storage drive. The Team MP44 is part of the vanguard for new and better DRAM-less SSDs. Newer controllers and flash are letting budget/value drives push the limits of the PCIe 4.0 interface while providing high capacities without making compromises. They can have the endurance and performance of TLC and the high power efficiency of four-channel, DRAM-less controllers, all without extra cost. Less power means less heat, and these drives are also designed to be single-sided. That combination makes the MP44 perfect for laptops. Its random read/write operations aren’t the best among PCIe 4.0 SSDS, so this SSD is best suited for loading very large files like video games, large media files, or as a boot drive.Crucial's T700 is the world's fastest SSD, taking the hands-down performance lead in every performance category. That groundbreaking speed comes courtesy of the drive's PCIe 5.0 x4 connection, which offers a pathway for up to twice the throughput of PCIe 4.0 SSDs, and the Phison E26 SSD controller paired with Micron's leading-edge 232-Layer 3D TLC flash. That potent common creates an SSD that's the fastest on the market for PC game loading times. The key thing to remember about M.2 is that it is a form factor, a shape. The bus—the data pathway over which the data travels to and from an M.2 drive—is distinct from M.2 itself and can vary. And it can make all the difference. (Credit: Molly Flores) Smaller-capacity 32GB and 64GB M.2 SSDs are also available for use in embedded applications or for SSD caching, but these are of marginal interest to upgraders or PC builders. Pricing on these drives ranges anywhere from 10 to 75 cents per gigabyte, and the biggest factor affecting price is the bus type of the drive.

Our tests reflect this for the most part, recording a sequential read speed of 7,256MB/s in CrystalDiskMark 8, with a somewhat lower than expected sequential write speed of 6,082MB/s in the same test. Interestingly though, it had the highest random write performance of any drive we tested (4,938MB/s), including the vaunted Samsung Pro 990, which had a roughly 17% slower random write rate (4,105MB/s). It also had the best average data copy rate of all the drives we tested recently with 1,733MB/s, so this is not only a great gaming SSD, it’s a fantastic all around performer at a great price. The newest budget NVMe SSDs have undercut the pricing of mainstream drives on the slower SATA interface (which was originally designed for hard drives), but we shouldn't expect to see the end of SATA SSDs any time soon. Get the ultimate gaming edge over your competition with insane speeds up to 7,300 MB/s(1) for top-level performance and radically short load times. The Patriot Viper VP4300 is a major contender for the best SSD crown with its impressive sequential and random speeds, fast copy operations, and low operating temperature. But most of all, this SSD is built for the long haul with a best-in-class 1000TBW endurance rating for a 1TB drive, and a 2000TBW rating for a 2TB one. In essence, the 990 Pro caters to a niche demanding peak performance. Until PCIe 5.0 SSDs really hit the scene, it remains a top-tier choice for enthusiasts and professionals alike.In my early career, I worked as an editor of scholarly science books, and as an editor of "Dummies"-style computer guidebooks for Brady Books (now, BradyGames). I'm a lifetime New Yorker, a graduate of New York University's journalism program, and a member of Phi Beta Kappa. The SK Hynix Platinum P41 is a worthy choice for anyone looking to buy a high-performance PCI Express 4.0 NVMe SSD without breaking the bank. It blew away several of our benchmark records. The P41 provides AES hardware-based encryption and a clone utility tool as well as SSD management software. Just be forewarned that with its blistering speed, you will want to add a heatsink, the one item of note that it is missing.