SATA SSDs transformed storage performance when they first arrived as a replacement for spinning hard drives. The real-world difference was game-changing, and it was clear that the time for SSDs was finally here. The pricing remained high for a few years before dropping considerably, prompting rapid adoption. However, by that time, NVMe SSDs offered a faster, sleeker alternative. Within a few more years, SATA SSDs found themselves in no man's land as people preferred NVMe drives for performance and hard drives for economical, high-capacity storage. That said, SATA SSDs remain one of the smartest budget upgrades you can make to your system, especially on a home server or NAS. The performance on offer is still great, and you can save a lot compared to NVMe SSDs when buying larger drives.

SATA is slower than NVMe, but does that matter?

Most people will never notice a difference

Theoretically, a Gen4 NVMe SSD is around 14 times faster than a SATA SSD, providing around 7,000MB/s transfer speeds compared to the measly 550 MB/s speeds of the older technology. That said, expecting your system to perform 14 times faster on an NVMe drive is setting yourself up for disappointment. In most real-world scenarios, a SATA SSD already removes storage as the performance bottleneck. For general OS operations, gaming, and browsing, SATA SSDs are fast enough that most users won't notice any difference when upgrading to an NVMe SSD. I say "most" because a modern NVMe SSD will fly through workloads that SATA SSDs seem ill-equipped for, such as massive file transfers or video rendering while pulling assets from the drive.

Unlike PCs, home servers and NAS devices rarely have storage as the bottleneck. Most users will saturate their networking bandwidth before the SATA SSD becomes the problem. Even the theoretical maximum transfer speed of Gigabit Ethernet is 125 MB/s, which is well below the 550 MB/s speed of SATA SSDs. Even those with 5Gb LAN will exceed the SATA transfer limit by a few dozen MB/s. Of course, enthusiasts with 10Gb Ethernet will want to remove any bottlenecks from their setup, but for everyone else, SATA SSDs are hardly the bottleneck people think they are.

Lastly, you can plug in way more SATA SSDs on your motherboard compared to NVMe drives. A typical motherboard features double the number of SATA ports as M.2 ports, allowing you much more flexibility to install SATA SSDs. You can keep expanding your storage without running out of M.2 ports or saturating the number of PCIe lanes.

Used enterprise SATA SSDs are great for always-on workstations

Longevity, performance, and value

Another aspect to consider is the affordability of enterprise SATA SSDs on the used market. Compared to pre-owned enterprise NVMe (U.2 or E1.S) SSDs, SATA drives can be had for a significant discount. If you consider the price of 4TB SATA and U.2 NVMe enterprise SSDs on eBay, you'll find many more listings for the former under $400, while the latter are usually priced over $600. Used enterprise SSDs can be one of the best deals for your 24/7 home lab, considering their superior endurance and robust construction. They're engineered for relentless I/O requests, unlike consumer drives that are optimized for burst performance. Besides, enterprise drives are available in larger capacities compared to their consumer counterparts. And picking a SATA SSD ticks the value box, too, as you can potentially save hundreds of dollars when buying storage for your home lab or server.

SATA SSD savings can be considerable

Consumer SATA SSDs are cheaper, too

Even if you're not interested in enterprise SSDs on the pre-owned market, consumer SATA drives can still offer decent cost savings compared to NVMe SSDs. While you might have seen similar prices for them when looking at smaller capacities, they start to diverge when you consider 4TB and larger variants. The difference might not be drastic in some cases, but you can still save around $100 per drive when populating your high-capacity home lab. SATA might be the older interface, but the upside is that it allows you to save a decent amount of your budget that can be invested elsewhere for greater performance. The fact that SATA drives are still fast enough for most use cases is a bonus. You don't need to suffer through the slow performance of hard drives to save money; SATA SSDs are the sweet spot.

Don't ignore SATA SSDs for your PC or home server

SATA SSDs might seem outdated or boring compared to newer NVMe SSDs, but they have their place. When you need high-capacity storage without drastic performance penalties, SATA SSDs offer a unique option. They're more affordable than NVMe SSDs at higher capacities and faster than conventional hard drives. The performance of a SATA SSD is rarely the bottleneck on a gaming PC or home server, eliminating the oft-cited downside from the equation.