--- product_id: 634015597 title: "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: "2897.30 DT" currency: TND in_stock: true category: "Sp Silicon Power" url: https://www.desertcart.tn/products/634015597-ace-a55-4tb-sata-ssd-up-to-500mb-s-3d store_origin: TN region: Tunisia --- # Up to 500MB/s transfer speed Massive 4TB storage capacity 3D NAND with SLC Cache tech 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:** 2897.30 DT **Availability:** ✅ In Stock ## Summary > 🚀 Upgrade your workflow with storage that keeps pace with your ambition! ## Quick Answers - **What is this?** 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?** 2897.30 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/634015597-ace-a55-4tb-sata-ssd-up-to-500mb-s-3d) ## 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—projects, media, and more—without compromise. - • **Sleek 7mm Slim Profile:** Fits effortlessly into ultrabooks and slim laptops—power meets portability. - • **Rock-Solid Data Integrity:** Supports TRIM, Garbage Collection, RAID, and ECC for optimized performance and peace of mind. - • **Next-Gen 3D NAND & SLC Cache:** Advanced memory tech boosts performance and extends drive lifespan for relentless reliability. - • **Blazing Fast Boot & Load Times:** Experience lightning-quick system startups and app launches with up to 500MB/s read speeds. ## Overview The Ace A55 4TB SATA SSD combines a spacious 4TB capacity with fast 500MB/s transfer speeds, leveraging cutting-edge 3D NAND and SLC Cache technology. Its slim 7mm design fits ultrabooks and laptops, while advanced features like TRIM, Garbage Collection, RAID, and ECC ensure optimized performance and durability. Backed by a 3-year limited warranty, it’s the perfect internal SSD for professionals demanding speed, reliability, and ample storage. ## Description Buy 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 online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase. ## 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 | #32,302 in Computers ( See Top 100 in Computers ) #274 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 | | Country of Origin | Taiwan | | Customer Package Type | FFP | | Customer Reviews | 4.1 4.1 out of 5 stars (2,600) | | Data Transfer Rate | 500 Megabytes Per Second | | 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-Drive Size | 4000 GB | | Hardware Connectivity | SATA 6.0 Gb/s | | Installation Type | Internal Hard Drive | | Item Weight | 0.11 Pounds | | 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 | | 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 ![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/71+0WTZmyAL.jpg) ## Available Options This product comes in different **Color, Size** 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 ## 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.tn/products/634015597-ace-a55-4tb-sata-ssd-up-to-500mb-s-3d](https://www.desertcart.tn/products/634015597-ace-a55-4tb-sata-ssd-up-to-500mb-s-3d) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-06-16*