SP Silicon Power

SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2 5 7mm 0

236+ bought in the past month

$309.97

About this item

  • 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.)
$309.97

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Product details

Digital Storage Capacity4000 GB
Hard Disk InterfaceSolid State
Connectivity TechnologySATA
BrandSP Silicon Power
Special FeatureShock Resistant
Hard Disk Form Factor2.5 Inches
Hard Disk DescriptionSolid State Drive
Compatible DevicesLaptop
Installation TypeSSD
Hard Disk Size4000 GB

Technical specifications

hard_drive4000 GB Solid State Drive
best_sellers_rank#24 in Internal Solid State Drives

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Customer reviews

4.512,118 ratings

Customers say

Customers find the SSD works well out of the box with great read and write speeds, and appreciate its value for money and ease of installation, particularly noting it's easy to clone onto.

★★★★★

Excellent performance for the price

bobbySeptember 19, 2024

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! Read more

★★★★★

great ssd, made my laptop faster

M1SSINGNOwOMay 28, 2025

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. Read more

★★★★★

Works as promised. Very easy to install. Comes with Free Cloning Software

Neuroscience EnthusiastJanuary 18, 2019

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. Read more

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★★★★★

Fast with lots of storage and priced very reasonably

ddTaylorSeptember 1, 2024

1TB for under $50 is a fair price for such a decently spec’d SATA SSD. I used this drive in my user upgradable MacBook Pro with very solid results. It installed without a hiccup and formatted without issues. It is a noticeable improvement over the standard rotating storage included as standard. I don’t know how long this drive will last but I have purchased other SSD’s from the same brand and they are still going strong 4-years and 7-years later. That doesn’t always translate into like performance and/or longevity but based on my previous experiences with this brand and the price of the drive I wasn’t concerned. Fast with plenty of storage space available at a relative bargain. Read more

★★★★☆

Good value, some cut corners

Chris WMarch 25, 2025

Performance is quite good and predictable for a drive of this price point, much better than some more expensive drives from better known manufacturers. Read speeds are about the theoretical limits of the SATA bus, depending on factors like your file system, file size, etc. of course. Writes are slightly lower in burst, and substantially lower in sustained writes that overrun the SLC. However, I did find that they were able to sustain much faster write speeds than the budget line of a *major* SSD / memory manufacturer. These drives are also rated at almost twice the write durability. So, pretty good value for money. Silicon Power chose to cut cost by forgoing metal in the SSD case, these are plastic, so these drives will not sink heat off very efficiently. However, they do run on the cool side even with this handicap, so long as they're not in an unventilated hotbox of a system, they should be OK. As of these writings, these drives are not in the smartctl database (7.3/5671), so expect reduced telemetry on systems where you don't install their bloatware. It'd be very nice (and go a long way towards their credibility) if Silicon Power made the SMART info for their drives public. Read more

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★★★★★

It's big, it's cheap, it works

Ben S.August 15, 2025

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. Read more

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