
Lexar 512GB NS100 SSD 2.5 Inch SATA III Internal Solid State Drive, Up to 550MB/s Read, Gray (LNS100-512RBNA)
Want the best price and purchase timing?
Our AI advisor analyzes real-time pricing across all channels to find you the best deal.
AI Verdict
A 512GB SATA III SSD with 550MB/s read speeds, it's for upgrading older desktops and laptops needing a basic performance boost.
This 512GB SATA III SSD is a situational fit for users looking to replace an aging HDD in a desktop or laptop. Its 550MB/s read speed provides a noticeable upgrade for daily tasks, but the lack of a DRAM cache means it won't compete with faster NVMe options or higher-end SATA SSDs for sustained performance.
If you need faster performance for intensive tasks, look for an NVMe SSD with a PCIe Gen3 or Gen4 interface and a DRAM cache.
Regret Score™
Medium RiskLower is better — measures purchase-regret risk from real buyer complaints, review credibility, and product maturity
Issues discovered after purchase
Critically weak dimension
Amazon rating vs actual quality
Chance this product isn't for you
Pros
- Faster boot-ups and application loads compared to traditional hard drives.
- Sequential read speeds up to 550MB/s.
- Shock and vibration resistant with no moving parts.
- Offers 240TBW endurance for the 512GB model.
- Comes with a three-year limited warranty.
- Compatible with both desktops and laptops due to its 2.5-inch form factor.
Cons
- Lacks a DRAM cache, which can impact performance, especially with larger files or sustained writes.
- The SATA III interface limits maximum theoretical speed to 6Gb/s, making it slower than NVMe drives.
- Some users report performance degradation under sustained heavy writes, with speeds falling below 100MB/s after cache saturation.
- Actual read/write speeds reported by benchmarks sometimes fall short of advertised, with one test showing 546MB/s read and 479MB/s write.
Dimension Scores
550MB/s read is average for SATA III, but the lack of DRAM cache and reported performance degradation under sustained writes pull it down from higher scores.
While shock and vibration resistant, the DRAM-less design and some user concerns about early failures suggest it's below average for long-term heavy use.
512GB is a common and practical capacity for an OS drive and essential applications, but insufficient for extensive game libraries or large media files.
The 2.5-inch SATA III form factor is widely supported in both older desktops and laptops, making it highly compatible for upgrades.
Best For
- Upgrading an older laptop with a spinning hard drive.
- Revitalizing a desktop PC for basic computing tasks.
- As a secondary storage drive for games or less critical data.
- Users on a tight budget needing a performance boost.
Not Recommended For
- High-performance gaming rigs requiring fastest load times.
- Workstations handling large video editing files or CAD.
- Users needing maximum storage endurance for constant write operations.
Watch Out For
- Lacks a DRAM cache, which can lead to slower performance during large file transfers or heavy multitasking.
- Performance can drop significantly after the SLC cache fills up, with write speeds potentially falling below 100MB/s during sustained writes.
- Some users report the drive failing within 6 months to a year, indicating potential reliability concerns for long-term use.
- Actual benchmarked read speeds can be slightly lower than the advertised 550MB/s, with one test showing 546MB/s read.
Full Specifications
| ASIN | B07TQSYBPH |
| Brand | Lexar |
| Color | Gray |
| Series | LNS100 |
| Language | English, English, English, English, English |
| Hard Drive | 512 GB Solid State Drive |
| Item Weight | 1.2 ounces |
| Manufacturer | Lexar International |
| Special Feature | Shock Resistant |
| Flash Memory Size | 512 |
| Hardware Platform | PC, laptop |
| Installation Type | Internal Hard Drive |
| Item model number | LNS100-512AMZN |
| Compatible Devices | Desktop, Laptop |
| Product Dimensions | 3.94 x 2.75 x 0.28 inches |
| Hard Disk Interface | Solid State |
| Hard Drive Interface | Solid State |
| Hard Disk Description | Solid State Drive |
| Hard Disk Form Factor | 2.5 Inches |
| Item Dimensions LxWxH | 3.94 x 2.75 x 0.28 inches |
| Connectivity Technology | SATA |
| Digital Storage Capacity | 512 GB |
What Buyers Say
Many users found this 512GB SATA III SSD to be an affordable way to speed up older computers, reporting faster boot times and application loading compared to traditional hard drives. However, a recurring point of concern is its DRAM-less design, which can lead to noticeable performance drops during sustained large file transfers. While advertised speeds are often met in burst tests, real-world sustained write performance can be significantly lower.
“I just needed something cheap to get my old laptop running faster, and it totally did that for a few months, but then it started acting weird and I'm worried it's gonna die on me.”
Common Praise
- Noticeable speed increase for boot times and application loading compared to old hard drives.
- Easy installation process, often plug and play for most users.
- Runs cooler and quieter than traditional spinning drives.
- Affordable price point for a 512GB SSD.
Common Complaints
- Lacks a DRAM cache, impacting performance during heavy use.
- Performance degrades significantly with large file transfers or sustained writes, sometimes dropping below 100MB/s.
- Some users report early drive failures within months of purchase.
- Actual benchmarked speeds can be slightly lower than the advertised 550MB/s.
Ownership Tips
- Monitor drive health with third-party tools, as early failure signs might appear due to its DRAM-less nature.
- Avoid using it for constant, heavy write operations to prolong its lifespan and maintain performance.
- Back up your data regularly, especially if using it as a primary drive, given some reliability concerns.
- Performance can be inconsistent, feeling snappy for light tasks but bogging down with larger files.
Frequently Asked Questions
Is this compatible with my PlayStation?
The Lexar NS100 is a 2.5-inch SATA III SSD, compatible with PlayStation 4 models for storage upgrades. It is not compatible with the PS5's internal M.2 slot.
Does it come with cloning software?
No, the Lexar NS100 SSD does not typically include cloning software. You'll need to download third-party software or use your operating system's built-in tools.
What's the difference between this and an NVMe drive?
This is a SATA III SSD, connecting via a SATA port with a maximum theoretical speed of 6Gb/s (around 550MB/s real-world). NVMe drives connect via PCIe and are significantly faster, often reaching thousands of MB/s.
Can I use this as an external drive?
Yes, you can use this 2.5-inch SATA SSD as an external drive by placing it in a compatible 2.5-inch USB enclosure.
How long does the warranty last?
The Lexar NS100 512GB SSD comes with a three-year limited warranty.
Buying Guide
When buying an SSD, you're looking to speed up your computer, especially boot times and how fast programs open. This 2.5-inch SATA III SSD is a common upgrade for older machines that still use traditional hard drives. While it's much faster than an HDD, it's not the fastest type of SSD available.
capacity
This is how much data, like documents, photos, and games, you can store on the drive. Think of it like the size of your closet – bigger means more stuff fits.
interface
This is how the SSD connects to your computer's motherboard. SATA III is a common connection, but newer NVMe interfaces are like a superhighway compared to SATA's regular road, offering much faster data transfer.
read_speed
This tells you how fast the drive can pull information from itself, which directly affects how quickly your operating system boots up and applications launch. Higher numbers mean less waiting.
form_factor
This refers to the physical size and shape of the drive. A 2.5-inch form factor means it's designed to fit into the same bay as a traditional laptop hard drive.
Alternatives
If you need significantly faster speeds for demanding tasks or a newer computer, search for NVMe SSDs with PCIe Gen3 or Gen4 interfaces. If you need more storage, look for SATA SSDs with higher capacities like 1TB or 2TB.



