--- product_id: 634015597 title: "SP Silicon Power Ace A55 4TB SATA SSD, Up to 500MB/s, 3D NAND with SLC Cache, 2.5 Inch SATA III 6Gb/s Internal Solid State Drive for Desktop Laptop PC Computer" brand: "sp silicon power" price: "€ 876.49" currency: EUR in_stock: true reviews_count: 5 category: "Sp Silicon Power" url: https://www.desertcart.sk/products/634015597-sp-silicon-power-ace-a55-4tb-sata-ssd-up-to store_origin: SK region: Slovakia --- # Up to 500MB/s transfer speed 4TB massive storage capacity 3D NAND with SLC Cache tech SP Silicon Power Ace A55 4TB SATA SSD, Up to 500MB/s, 3D NAND with SLC Cache, 2.5 Inch SATA III 6Gb/s Internal Solid State Drive for Desktop Laptop PC Computer **Brand:** sp silicon power **Price:** € 876.49 **Availability:** ✅ In Stock ## Summary > 🚀 Upgrade your workflow with speed and space that keeps you ahead! ## Quick Answers - **What is this?** SP Silicon Power Ace A55 4TB SATA SSD, Up to 500MB/s, 3D NAND with SLC Cache, 2.5 Inch SATA III 6Gb/s Internal Solid State Drive for Desktop Laptop PC Computer by sp silicon power - **How much does it cost?** € 876.49 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/634015597-sp-silicon-power-ace-a55-4tb-sata-ssd-up-to) ## Best For - sp silicon power enthusiasts ## Why This Product - Trusted sp silicon power brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Massive 4TB Storage:** Store your entire digital life effortlessly—photos, projects, and media all in one sleek drive. - • **Rock-Solid Reliability:** Supports TRIM, RAID, ECC, and Garbage Collection for optimized performance and peace of mind. - • **Slim & Sleek 7mm Design:** Fits perfectly in ultrabooks and slim laptops without compromising style or space. - • **Blazing Fast Performance:** Experience lightning-quick bootups and file transfers with SATA III speeds up to 500MB/s. - • **Next-Gen 3D NAND & SLC Cache:** Advanced memory tech boosts speed and extends lifespan for reliable, long-term use. ## Overview The SP Silicon Power Ace A55 4TB SATA SSD combines a spacious 4TB capacity with fast 500MB/s transfer speeds enabled by advanced 3D NAND and SLC Cache technology. Its slim 7mm form factor fits ultrabooks and laptops seamlessly, while built-in features like TRIM, RAID, and ECC ensure optimized performance and durability. Perfect for professionals seeking a reliable, high-capacity upgrade that accelerates productivity without breaking the bank. ## Description Product description Affordable Upgrade for Everyone The Ace A55 is a standout choice for budget-conscious buyers, offering one of the most cost-effective SSD models. With its advanced SATA III 6Gb/s interface and wallet-friendly price, upgrading your old computer is both easy and affordable. Wide range of storage capacities 128GB / 256GB / 512GB / 1TB / 2TB / 4TB / 8TB There has to be one perfect choice for you! 15X Faster than a hard drive Experience a dramatic leap in speed with rapid boot-ups and quick file transfers. Transform your computing with ease. 3D NAND Performance That Leaves Yesterday Behind Utilizing advanced 3D NAND flash, the Ace A55 delivers exceptional reliability with breathtaking speed. Boot up in seconds, launch apps instantly, and transfer data faster than traditional HDDs – making every moment count, whether you're working hard or playing harder Upgrade your experience with the Ace A55 and feel the difference everywhere you go—at home, at work, at school, or beyond. Make everything you do faster with this simple but powerful enhancement. Slim Fit, Wide Compatibility Discover the Ace A55, a sleek 7mm marvel designed to effortlessly slide into the most compact spaces. Perfect for laptops and tight-fitting systems, it brings a sophisticated touch to any setup where space is at a premium. Review: +++ - All is ok Review: Excellent. - Drive formatted with no problem and has been working all afternoon having files copied to it, for about 5 hours straight now without a single hiccup. Excellent. Speed seems as good as my Crucial MX500 SSD's so very pleased with this drive. Quite a good saving from the other SSD's so at least at the moment I'm glad I took the chance on this brand. I will add another down the track a bit which will be over $100 saved compared to the other brands or more. ## Features - 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. - Supports TRIM command, Garbage Collection technology, RAID, and ECC (Error Checking & Correction) to provide the optimized performance and enhanced reliability. - 3-year limited warranty. (Please register your product via SP official website to get the complete manufacturer warranty services, product support and more.) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BVLRFFWQ | | Additional Features | Compact | | Best Sellers Rank | #45,137 in Computers ( See Top 100 in Computers ) #349 in Internal Solid State Drives | | Brand | SP Silicon Power | | Built-In Media | Quick Start Guide | | Cache Memory Installed Size | 4 | | Color | A55 | | Compatible Devices | Laptop | | Connectivity Technology | SATA | | Connectivity technology | SATA | | Customer Package Type | FFP | | Customer Reviews | 4.2 out of 5 stars 2,629 Reviews | | Data Transfer Rate | 500 Megabytes Per Second | | Digital Storage Capacity | 4000 GB | | Digital storage capacity | 4000 GB | | Enclosure Material | 3D Nand Flash | | Form Factor | 2.5-inch | | Global Trade Identification Number | 00886576069678 | | Hard Disk Description | Solid State Drive | | Hard Disk Form Factor | 2.5 Inches | | Hard Disk Interface | Solid State | | Hard disk form factor | 2.5 Inches | | Hard disk interface | Solid State | | Hard-Drive Size | 4000 GB | | Hardware Connectivity | SATA 6.0 Gb/s | | Installation Type | Internal Hard Drive | | Item Weight | 50 g | | Manufacturer | SP Silicon Power | | Media Speed | 500.0 | | Mfr Part Number | SP004TBSS3A55S25AY | | Model Name | SP004TBSS3A55S25 | | Model Number | SP004TBSS3A55S25 | | Number of Items | 1 | | Read Speed | 500 Megabits Per Second | | Special features | Compact | | UPC | 886576069678 | | Warranty Description | 3-Year Limited Warranty | ## Product Details - **Brand:** SP Silicon Power - **Colour:** A55 - **Compatible devices:** Laptop - **Connectivity technology:** SATA - **Digital storage capacity:** 4000 GB - **Hard disk description:** Solid State Drive - **Hard disk form factor:** 2.5 Inches - **Hard disk interface:** Solid State - **Installation type:** Internal Hard Drive - **Special features:** Compact ## Images ![SP Silicon Power Ace A55 4TB SATA SSD, Up to 500MB/s, 3D NAND with SLC Cache, 2.5 Inch SATA III 6Gb/s Internal Solid State Drive for Desktop Laptop PC Computer - Image 1](https://m.media-amazon.com/images/I/61kKWTNLsuL.jpg) ![SP Silicon Power Ace A55 4TB SATA SSD, Up to 500MB/s, 3D NAND with SLC Cache, 2.5 Inch SATA III 6Gb/s Internal Solid State Drive for Desktop Laptop PC Computer - Image 2](https://m.media-amazon.com/images/I/61atkmcDMDL.jpg) ![SP Silicon Power Ace A55 4TB SATA SSD, Up to 500MB/s, 3D NAND with SLC Cache, 2.5 Inch SATA III 6Gb/s Internal Solid State Drive for Desktop Laptop PC Computer - Image 3](https://m.media-amazon.com/images/I/71FG7IZlU+L.jpg) ![SP Silicon Power Ace A55 4TB SATA SSD, Up to 500MB/s, 3D NAND with SLC Cache, 2.5 Inch SATA III 6Gb/s Internal Solid State Drive for Desktop Laptop PC Computer - Image 4](https://m.media-amazon.com/images/I/61itU1+V+SL.jpg) ![SP Silicon Power Ace A55 4TB SATA SSD, Up to 500MB/s, 3D NAND with SLC Cache, 2.5 Inch SATA III 6Gb/s Internal Solid State Drive for Desktop Laptop PC Computer - Image 5](https://m.media-amazon.com/images/I/61Gde2A8gkL.jpg) ## Available Options This product comes in different **Color, Memory Storage Capacity** options. ## Questions & Answers **Q: What is tbw for s55 ?? hopefully i can get the answer from the manufacturer** A: @Carson - to answer your question, the OP was asking what the TBW for the S55 series of drives from Silicon Power is. First some preliminary info: Unfortunately, the question was probably asked incorrectly, at least the vendor appears to believe so as the vendor provided the info for the A55 series. The S55 series is in sizes 120GB, 240GB, 480GB, and 960GB. The A55 series is in sizes (in GB) of 128, 256, 512 (and in TB) 1, 2, 4, 8, 16TB. All things being equal, they are relatively the same in performance specifications (S55 and A55 of nearly same sizes). However, the S55 series is pretty much defunct by now, though you can still find them available. Now, on to answer your question: TBW stands for Total Bytes Written. It is the standard of measure for how long the SSD drive will last, or more correctly, how long you can still write to it. In layman's terms, SSD drives can only have data written to them so many times (in actuality it is the "erase" function which clears a block of space on the drive that this really relates to) and so they in a sense "get used up" after a period of time. All in all it boils down to the old MTBF (Mean Time Before Failure) that regular magnetic hard drives (HDDs) are measured against. TBW is generally measured in Terabytes (unless otherwise stated) so as an example, if you have a 512GB (Gigabyte) SSD drive that has a TBW of 250 it means that you can write up to 250 Terabytes of data on the drive before you can no longer write to it. In this example, that means you could completely write to the entire drive (and erase/overwrite it) 500 times (512GB being half a Terabyte relatively). Once you have reached the TBW of the drive, you could no longer write to it, though you can continue to read the existing data on it for as long as the drive works "electronically". Hope that answers your question as well as possible. **Q: Does it have power failure protection?** A: does it matter? the purpose of power loss protection is to write data from the dram cache to nand (flash) in the event of power loss. If an SSD does not have dram cache (such as this), there are no writes to in dram to protect. does that necessarily mean a drive is good or will survive a power loss? depends on firmware-if done correctly, yes. dram is much faster, so for high end drives, dram is almost a necessity. some of them with dram to hit high performance numbers do not have power loss capacitors...if you're looking for an application or use case that needs both the performance of dram caching and power loss protection of that dram cache, you likely already know enough to know the answer. if you don't have one of those use cases, power loss protection is really a moot point. This is not a drive someone would use for a ZFS ZIL, or a virtual machine swap file datastore, or big SQL server temp db.. **Q: Is this a good boot drive?** A: I used to own a comp company..still build several high end rigs a year and enequivacly can say these are excellent "not " drives. Very stable through all functions esp here in Hawaii with sometime spotty power supply. Rgds and aloha Tim **Q: Anyone else have problems with this drive not registering on userbenchmark?** A: I have not had any issues at all with this drive. I just recently installed it on my pc and it works perfectly ## Customer Reviews ### ⭐⭐⭐⭐⭐ +++ *by D***É on 16 June 2024* All is ok ### ⭐⭐⭐⭐⭐ Excellent. *by J***O on 21 July 2025* Drive formatted with no problem and has been working all afternoon having files copied to it, for about 5 hours straight now without a single hiccup. Excellent. Speed seems as good as my Crucial MX500 SSD's so very pleased with this drive. Quite a good saving from the other SSD's so at least at the moment I'm glad I took the chance on this brand. I will add another down the track a bit which will be over $100 saved compared to the other brands or more. ### ⭐⭐⭐⭐⭐ Good value *by T***S on 9 November 2024* Its super fast and quiet of course. There were some reviews mentioned it lags when writing large files to it. This is true because it does not contain the buffer circuitry on the SAMSUNG ssd drives. This will not be an issue for you if you use Aomei or EaseUS partitions software. There is a box you can check, optimise for ssd, to speed up the cloning massively. My steps to move OS- 1 - Clone the System Reserved Partition 2 - Clone the OS partition Be sure not to miss step 1. Of course you can clone the entire drive it is much simpler but I did not do this because it will take forever. What you will want to have in case of boot issues: -Windows PE disc -EasyBCD (critical), and a way to run it Sustained write speeds will not be much of an issue for most people once it's migrated / cloned or setup. If it is an issue for you, shell out the shekels for the Samsung. As all flash memory does, it operates way faster with small files, sustained writes and probably even reads, are going to slow down after about 500mb of file size This is a great value and it will perform fine for most users. Very cool to have and great value I do not regret this purchase even .001%. Would have like to get the Samsung, but its 3X as much money, for what boils down to nearly the same thing, once the drive is cloned Make sure to check optimize for ssd in cloning software. Definitely use fast mode clone (copy files) in Aomei to save yourself hours. I'd probably avoid using clonezilla because it wiped my boot record then failed to clone, and it takes forever in sector clone mode. Do not expect the disc cloning to be easy or fast, it will not be unless you clone entire drive, and if you do that and your drive is huge then prepare to wait overnight if not days. So is why I suggested the steps above. Only took about 30 minutes to clone a 270 gb partition just now. works best to just not delete anything on source disk and you will be fine as long as you are able to run EasyBCD again (make sure that you can!) ## Frequently Bought Together - SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) - BENFEI SATA Cable III, 3 Pack SATA Cable III 6Gbps Straight HDD SDD Data Cable with Locking Latch 18 Inch Compatible for SATA HDD, SSD, CD Driver, CD Writer - Black - Silicon Power 2TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" 7mm (0.28") SSD Internal Solid State Drive (SP002TBSS3A55S25) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sk/products/634015597-sp-silicon-power-ace-a55-4tb-sata-ssd-up-to](https://www.desertcart.sk/products/634015597-sp-silicon-power-ace-a55-4tb-sata-ssd-up-to) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-07-28*