SP 1TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5 7mm (0.28) Internal Solid State Drive (SP001TBSS3A55S25)

Good value for the price.

Using it for months now. No problem at all. Great item.

Its only been a month or so since I did a drive swap and reinstall. We will see in the long run how its working still. Ill keep this updated but Id give it a 4 so far.

I have three of these disks (1 TB) installed in a ZFS pool (no mirroring, no raidz). I needed cheap SSDs for my workloads, which are heavily write intensive, but require sporadic, small sized, random reads, a few times every second. Well, NAND flash can be great for that. Or at-least thats what youd expect. Sidenote: if you know anything about 7200rpm spinning drives, you know they can sustain a reasonable ~150-200MB/s sequential write, but throughput will suffer quite a bit if they need to simultaneously seek to fetch non-contiguous data. And then theres the issue of limited IOPS. I wasnt expecting miracles from these SSDs, but I was certainly expecting each to sustain atleast ~200 MB/s sequential writes. Well lo and behold, once you blow through the onboard SLC cache after a measly 30 seconds of writes at ~500MB/s, the drives start choking. Nothing more than ~65MB/s after that. I know these are TLC drives with SLC cache, but woof, those numbers arent great. So, if your workload isnt write heavy, by all means get this thing. But Id think youd want a little more performance out of something only fractionally cheaper than better performing alternatives. Also, no benchmarks posted on here use a large enough test file size to actually blow through the SLC cache, so the only thing you see results for is your SATA connection and/or packet congestion in the PCIe lane. On the positive side, sustained read performance was as expected, saturated the SATA III link without any issues.

Ive purchased these drives twice, one 512 GB and one 2 TB drive. The 512 GB drive failed within one year. When it failed, all reads and writes to it were incredibly slow, and any system that tried to boot off of it would crash, though I was still able to recover data from it. I called in the warranty on that drive, and both its replacement and the 2 TB drive exhibited the same issue where it *looked* like it was working, but its read / write performance was incredibly inconsistent. The systems booting off of those drives would occasionally freeze for seemingly no reason and at random times. I couldnt figure out what was going on until I did a benchmark of the drives and saw how bad the read speeds were. In particular, I noticed that sometimes the read speeds went crashing down to ZERO. That certainly explains why my systems were locking up. I used a free app called HD Tune to do the benchmarking. Ive attached a few of the graphs it produces as it runs to this review to illustrate what a failing drive looks like. If you buy one of these drives and see something similar to what Ive shared, then definitely RMA those drives ASAP because they will cause your system to freeze or crash. I called in the warranty on both the replacement 512 MB and 2 TB drives (for a total of three RMAs), and the replacements do seem to work correctly. So luckily not all of these SSDs have that issue. But its worth noting that three out of the five of these drives Ive had were faulty, and it still remains to be seen how long these two new replacement drives will last.

Bought this to clone a laptops HDD (5400rmp). Cloning went of without a hitch and I easily rebooted the laptop with the clone. The laptop is very fast now and the user couldnt be happier.

So far its working perfectly. Install was simple, using in an external sata 3 case, under windows 11.

Excelente SSD calidad/precio, como siempre SP no decepciona, tengo otro SSD de 256gb del mismo modelo que compre hace ya varios años, se lo di a un amigo y sigue funcionando, le queda mucha vida aun.

Wanted to pick up MSFS 2020, and knew that all the files would be too much for my boot drive. Had a second 7200rpm hard drive, but it was noticeably slower than an SSD. Bought this as well as an SSD to USB-4 cable, and am able to use this drive for all the game files with read and write times on par with my internal SSD.

This was one of the best values Ive found for SSDs in the 1TB range. Most others still run well over $100 for 1TB of storage (at the time of this review in Dec 2019). Silicon Power does provide free software for download to check and monitor the health (and check the SMART stats) of their SSD drives - SP Toolbox. I would recommend downloading the free utility from SPs website for occasionally checking and ensuring your drive is in good health. From a transfer rate perspective, this SSD works as advertised, and performs as well as a Crucial MX SSD 3D NAND that I also have installed in the same desktop system. SSDs are best for general purpose use - primarily as boot drives for OS and apps, especially on laptops. The OS will boot much, much faster from a SSD compared to a mechanical HDD, and the SSD will consume a lot less power than a mechanical HDD. Apps also launch in a fraction of the time on a SSD. The only drawback with a SSD is its overall shelf life - it has a limited number of writes, which not a huge factor if youre only using the drive for booting the OS and running apps. For media storage, backups, databases, and large files, mechanical HDDs are still the way to go, and theyre still a lot less expensive than a SSD. Over time, if you write or delete a lot of data from a SSD drive, performance will begin to deteriorate. Most however will not encounter much in the way of performance degradation, even after several years of drive use. Either way, SSD is best for read operations, and will vastly outperform a mechanical HDD for reading data, hence the much faster boot and app launch times. They are well worth it for the performance boost...time is money. Silicon Power seems to be making quality drives that work, but time will tell. If it fails or clunks out early, Ill be back here to modify my review. Otherwise, no complaints, 5 stars.