Product Type | Flash Memory Card |
Form Factor | microSDXC |
Series | Professional 1066x |
Capacity | 256 GB |
UHS Speed Class | UHS-I (U1) |
Speed Class | Class 10 |
Application Performance Class | A2 |
Video Speed Class | V30 |
Read Speed | Up to 160 MB/s |
Write Speed | Up to 120 MB/s |
Included Accessories | microSD to SD Adapter |
Warranty | 10-Year Limited Warranty |
Lexar Professional MicroSDXC 256GB 1066x UHS-I Class 10



Key Benefits

AI-Powered Summaries from Online Customer Reviews
Eye-Insights™ are generated by proprietary AI that analyzes real online customer reviews to highlight top pros and key product features. While we aim for accuracy, insights are provided “as-is” and individual results may vary.
- High-speed read/write performance makes it ideal for 4K video and burst photography.
- TAA compliance ensures suitability for government and institutional buyers.
- A ten-year limited warranty signifies long-term investment protection and product confidence.
Product Overview
The Lexar Professional MicroSDXC 256GB card is engineered to deliver exceptional performance in high-demand storage applications. With its designation of 1066x, this UHS-I, Class 10 microSDXC card supports read speeds up to 160MB/s and write speeds up to 120MB/s. These transfer rates provide reliable, high-speed data performance ideal for capturing 4K video, rapid photo bursts, and file management on smartphones, tablets, drones, or action cameras. Additionally, it includes an adapter for extended device compatibility.
Built for professionals and enthusiasts alike, the card ensures dependable media handling with a durable construction manufactured in Taiwan and backed by a ten-year limited warranty. Its TAA compliance further enhances its appeal for government and institutional procurement. Combined with the SDXC form factor and 256GB of storage, it offers the necessary space and reliability for high-volume storage, media offloading, and on-the-go productivity. Note that specific operating temperatures or durability metrics are not provided.
Specifications
Product Overview
Physical & Environmental
Width | 11 mm |
Height | 15 mm |
Thickness | 1 mm |
Product Weight | Approx. 0.25 g |
Operating Temperature | -25°C to 85°C (-13°F to 185°F) |
Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
Shockproof | Yes |
Vibration Resistant | Yes |
Waterproof | Yes |
Temperature Proof | Yes |
X-Ray Proof | Yes |
Cloud Management & Licensing
Cloud Compatibility |
Interfaces
Interface Type | UHS-I |
Bus Interface Speed | Up to 1066x (160 MB/s) |
Compliance & Origin
Country of Origin | Taiwan |
TAA Compliant | Yes |
Certifications | FCC, CE, RoHS |
Advanced Security Features
Built-in Write Protection Switch | On Adapter |