SanDisk
SanDisk 770-6747-743 Ultra 128GB MicroSD for Fire Tablets
★★★★★
Unleash the Potential of Your Fire Devices Introducing the SanDisk Ultra 128GB microSD Memory Card, verified by SanFlash for flawless compatibility with your Amazon Fire Tablets and Fire TV devices. Experience seamless performance and expanded storage, designed to meet and exceed your expectatio...
$39.47*
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✓ In Stock on Amazon.com
*Price sourced from Amazon.com. Last updated:Jul 15, 2026.Price and availability are subject to change.
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Overview
Unleash the Potential of Your Fire Devices
Introducing the SanDisk Ultra 128GB microSD Memory Card, verified by SanFlash for flawless compatibility with your Amazon Fire Tablets and Fire TV devices. Experience seamless performance and expanded storage, designed to meet and exceed your expectations.
Specifications:
- Capacity: 128GB
- Compatibility: Optimized for Amazon Fire Tablets and Fire TV
- Speed: Up to 100MB/s transfer speed
- Speed Class: U1, C10
- A1 Rating: Ensures consistent and solid app performance (minimum 1500 IOPS)
- Durability: Operates in extreme temperatures (-13°F to 185°F / -25°C to 85°C)
- Features: Securely stores photos, files, music, and Full HD 4K video.
Key Features
Up to 128GB to store even more hours of Full HD video (1GB=1,000,000,000 bytes)
Up to 120MB/s transfer speeds let you move up to 1000 photos in a minute
Securely store all your photos, files, music, and more
Load apps faster with A1-rated performance. A1 performance is 1500 read IOPS, 500 write IOPS. Based on internal testing. Results may vary based on host device, app type and other factors.
Compact and Durable
Specifications
Brand
SanDisk
Model
770-6747-743 Ultra
Capacity
128GB
Form Factor
MicroSD
Maximum Transfer Speed
Up to 120MB/s
A1 Performance
1500 read IOPS, 500 write IOPS
Primary Compatibility
Fire Tablets
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View on Amazon →Pros & Cons
👍 Pros
- The SanDisk Ultra 128GB MicroSD offers ample storage capacity for extensive Full HD video recording and numerous files.
- It boasts transfer speeds of up to 120MB/s, allowing for rapid movement of large photo collections.
- With A1-rated performance, this microSD card helps load applications faster, enhancing user experience on compatible devices.
- The card is designed to be compact and durable, providing reliable storage for various portable electronics.
- It securely stores all your photos, files, music, and more, offering peace of mind for digital content.
👎 Cons
- The A1 performance, while generally good for apps, may not be sufficient for more demanding applications or 4K video recording.
- Actual transfer speeds and A1 performance results can vary based on the host device and other usage factors.
- While durable, specific ruggedization standards like water or shock resistance are not detailed in the available features.
- The primary focus on Fire Tablets suggests optimized performance for these devices, which might not extend universally.
- The "up to" transfer speed indicates that sustained maximum performance is not guaranteed in all operational conditions.
Frequently Asked Questions
What is the storage capacity of the SanDisk Ultra MicroSD card?
The SanDisk Ultra MicroSD card offers 128GB of storage, which can hold many hours of Full HD video.
How fast are the transfer speeds on this SanDisk MicroSD card?
This card provides transfer speeds of up to 120MB/s, enabling you to move up to 1000 photos in approximately one minute.
What does A1-rated performance mean for this card?
A1-rated performance signifies that the card is optimized for faster app loading, with 1500 read IOPS and 500 write IOPS.
Is this MicroSD card compatible with devices other than Fire Tablets?
While optimized for Fire Tablets, as a standard MicroSD card, it is generally compatible with other devices that support this format.
What type of content can I store on this memory card?
You can securely store a variety of digital content including photos, files, music, and full HD video on this 128GB MicroSD card.
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