SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5” 7mm (0.28”) Internal Solid State Drive (SP004TBSS3A55S25)
$12.99
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High Transfer Speeds for Fast Start Up Powered by high quality controller and original synchronous NAND flash, Ace A55 delivers incredibly high transfer speeds that enable short boot time, fast application loading and quick file processing. SLC Cache Technology for Performance Boost and Longer Lifespan The A55 especially applies the ”SLC Cache technology” that allows all data to be written in the SLC portion first and leads to higher peak writing performance. In addition, the technology can reduce write amplification and thus offer better endurance and longer lifespan of the SSD. Free-download SSD Health Monitor Tool – SP Toolbox Software The A55 comes with a free-download SSD health monitor tool – SP Toolbox Software, which is especially designed for you to easily monitor the current health status of a SSD. By such, you can run a performance test, get an overall health evaluation and check detailed information about your SSD, including used space on device, device temperature, total bytes written, S.M.A.R.T. status, erase count status and block numbers. *Please download the software at SP Official Website. Absolutely Reliable with Bad Block Management The A55 is built with Bad Block Management, which can continually monitor and replace bad blocks to keep your system in good condition with prolonged lifespan of a SSD. Multiple Techniques Supported The A55 is one of the lightest and thinnest SSD of its kind yet it is shock- and vibration-proof since it contains no moving parts. Furthermore, S.M.A.R.T. monitoring system and ECC technology are equipped to promise higher data transmission safety. 3-year Warranty The Ace A55 is backed by 3-year warranty. *Please register your product via SP official website to get the complete manufacturer warranty services, product support and more. Box Contains 1 x Silicon Power Ace A55 Solid State DriveHigh Transfer Speeds for Fast Start Up Powered by high quality controller and original synchronous NAND flash, Ace A55 delivers incredibly high transfer speeds that enable short boot time, fast application loading and quick file processing. SLC Cache Technology for Performance Boost and Longer Lifespan The A55 especially applies the ”SLC Cache technology” that allows all data to be written in the SLC portion first and leads to higher peak writing performance. In addition, the technology can reduce write amplification and thus offer better endurance and longer lifespan of the SSD. Free-download SSD Health Monitor Tool – SP Toolbox Software The A55 comes with a free-download SSD health monitor tool – SP Toolbox Software, which is especially designed for you to easily monitor the current health status of a SSD. By such, you can run a performance test, get an overall health evaluation and check detailed information about your SSD, including used space on device, device temperature, total bytes written, S.M.A.R.T. status, erase count status and block numbers. *Please download the software at SP Official Website. Absolutely Reliable with Bad Block Management The A55 is built with Bad Block Management, which can continually monitor and replace bad blocks to keep your system in good condition with prolonged lifespan of a SSD. Multiple Techniques Supported The A55 is one of the lightest and thinnest SSD of its kind yet it is shock- and vibration-proof since it contains no moving parts. Furthermore, S.M.A.R.T. monitoring system and ECC technology are equipped to promise higher data transmission safety. 3-year Warranty The Ace A55 is backed by 3-year warranty. *Please register your product via SP official website to get the complete manufacturer warranty services, product support and more. Box Contains 1 x Silicon Power Ace A55 Solid State Drive
3D NAND flash are applied to deliver high transfer speeds
Remarkable transfer speeds that enable faster bootup and improved overall system performance. The advanced SLC Cache Technology allows performance boost and longer lifespan
7mm slim design suitable for Ultrabooks and Ultra-slim notebooks.
3-year limited warranty. (Please register your product via SP official website to get the complete manufacturer warranty services, product support and more.)
11 reviews for SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5” 7mm (0.28”) Internal Solid State Drive (SP004TBSS3A55S25)
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$12.99
M1SSINGNOwO –
great ssd, made my laptop faster
i bought this ssd to make my laptop load things faster, and it did exactly what i bought it for, windows loads a lot faster, with other pleasant side effects like the battery lasting this tiny bit longer, and the laptop being this tiny bit quieter.its got good performance, not only windows loads faster, but games and other programs load faster than on hard drive.for the value of capacity to dollar, this is a good drive. using the ssd as a boot drive for windows 7, 476.94 gb is shown on the drive, not anywhere near the 512 gb on the amazon listing but it was a capacity upgrade from my old 500 gb hard drive, and most other ssds will have this effect too.overall, a great upgrade for any laptop with a spinny drive.
Neuroscience Enthusiast –
Works as promised. Very easy to install. Comes with Free Cloning Software
This is big bang for the buck. It works as promised. There were no issues. I had it running in 30 mins. Flawless.Pros:1. Works as promised.2. Comes with free Software called ECHO 3. You can download this software from SP website. The key for this is printed on a sticker on the back of the SSD device. People have used it successfully. I have no idea how it is. I used Macrium Reflect to clone. Just wanted to document here that it comes with a free software for cloning.3. Results are fantastic. I moved from 85/63 to 510/467 MBPS ! Well most most SSDs give that. Just documenting here that it delivered advertised speed. It could give more may be, but I have a small capacity machine.4. Look and feel is solid. It is of no value anyway.5. Price point is excellent. I got 512GB for $57. You would get Samsung 256GB for this price as of Jan/2019.Cons:None so far. Reliability – I have to wait and watch.Other thoughts:1. SSD Management software is available for free download. But my antivirus stopped it saying unsafe. Read on reviews that it contains TROJAN. So I would not recommend it. You can install something free like Crystal Disk Mark but it would not monitor SMART and other things. It is better to be safe than sorry. However I appreciate them offering something for this price range.2. I had tried Samsung Data Migration and Macrium Reflect earlier on a Samsug EVO SSD 256GB. It never worked, I had to return it. This one was very easy, it was a breeze. And costs 1/2 the money you would pay for Samsung brand. I think Samsung is just brand marketing. There is nothing much.3. I need 2TB-4TB SSDs for NAS. I would wait for sometime for prices to fall. I would recommend this product.
bobby –
Excellent performance for the price
The SP 512GB SSD A55 has been a fantastic upgrade to my system! With 3D NAND technology and SLC cache performance boost, this SSD has significantly improved my computer’s boot times and overall responsiveness. Programs load quickly, and file transfers are super fast compared to my old hard drive.Installation was easy—thanks to the SATA III 2.5″ format, it fit perfectly into my laptop without any issues. The 7mm slim profile is a nice bonus for compatibility with thinner laptops. Plus, with 512GB of storage, there’s plenty of space for my OS, applications, and a good chunk of games or media files.For the price, the performance is top-notch, making this SSD an excellent value. Whether you’re upgrading an old system or looking for additional storage, I highly recommend the SP A55 SSD. It’s reliable, fast, and gives a noticeable boost in performance!
Jamal McLaughlin –
Good SSD
Well worth the purchase and time installing. Laptop is much faster with the other upgrades I installed.
Kyle –
Great, just don’t put important files on it.
I’ve really enjoyed this SSD for a while but it seems to have some issues. I have had the drive for a little under two years now. I’ve been able to install my butt load of large video games and it’s honestly been great, easy install, easy setup. I’ve recently noticed some connectivity problems. I haven’t gotten to checking the physical connections of the drive yet as my pc is in a difficult to reach spot. The first time was fine. I had a little panic trying to find the drive and access my installed games. I restarted a few times, screwed around in the bios and disk management settings, and all seemed to be well. I was able to enjoy my games again. Just today (7-19-2025), I booted up my pc to play some games. My pc wasn’t reading the drive in my file directory. I figured I would do a few restarts and screw around in the bios. The bios showed the drive was connected and readable, however the file directory wouldn’t show it anytime I booted up. Thats when I went to disk management to find that the drive was unallocated. I have to completely reformat the drive to use it again which of course, wiped everything. Drivers were up to date, it was reading perfectly fine. All of my data seemed to poof into thin air. I got lucky that I only installed games on the drive with all of my game data being uploaded to a cloud. Be careful with what you install on it. If you don’t want to lose important files, don’t install them on this drive (or at least back them up consistently elsewhere). Great for gamers minus having to reinstall terabytes of data back.
Ben S. –
It’s big, it’s cheap, it works
Connecting it and getting the computer to recognize it is as easy as every other SATA drive. The performance is as expected for a DRAMless SSD. While I have used SP products for many years without issue, I would not recommend storing invaluable data on this SSD until I have used it enough to be sure of its quality. However, for the price, it is pretty unbeatable as a mass media or game drive.
Client d’Amazon –
Top qualité ,plusieurs achats de ce modèle et jamais déçu
dominique sacré –
All is ok
Mathieu –
Pack de 2 SSD 128GB 3D NAND : Excellent achat ! Mon ordinateur respire enfin et charge plus rapidement que jamais. Un boost de performance incroyable à un prix abordable. ⭐⭐⭐⭐⭐
Ian –
Have had this for a few years now working very hard & is still working well would buy this again
zepaero400 –
Mon nouveau support de sauvegarde externe de donnés. Quand je l’ai acquis, le coût était de 199€. Chez beaucoup d’autres marques il faut compter 100€ voire 200€ supplémentaires pour se payer un SSD de 4To. Si Silicon Power propose des prix attractifs, il reste à savoir si le matériel demeurera fiable sur le long terme… C’est le genre de question que je ne me pose même pas lors d’un achat similaire chez Western Digital. Mais bon, comme il s’agit d’un SSD de stockage externe, la fréquence d’utilisation sera faible ; en conséquence, l’usure devrait être modérée. Ce qui laisse présager une durée de vie conforme à mes attentes. J’ai mis le composant en service dans un boitier externe USB-C 3.1 GEN 2 à 10 Gbit/s. Aucun problème de compatibilité avec ce support. Sur l’ordinateur, le débit de transfert est de 6 Gbit/s. C’est la limite du SATA III. Toutes les données qui étaient stockées sur mon vieux disque dur externe, elles ont été copiées sans accroc. Par après, j’ai rencontré zéro problème lors des nouvelles sauvegardes.Voilà, pour le moment, c’est tout bon. Quel bonheur de pouvoir effectuer un backup système en moins de 10 minutes. Je souhaite seulement que ça dure.