SanDisk Ultra SDSQUNS-128G-GN6MN 128GB 80MB/s UHS-I Class 10 microSDXC Card
Quick take
This 128GB microSDXC card from SanDisk is designed for everyday device storage, Full HD video recording/playback, and faster app loading thanks to its A1 performance class. Buyers commonly use it in media devices and small gadgets, and it tends to work reliably once formatted correctly. The main caveat is that some devices (notably dash cams) may require a specific file system format before it performs as expected.
Pros and cons
Pros
- Up to 80MB/s transfer speeds for quicker file movement (UHS-I).
- A1 performance class for faster app loading on compatible devices.
- UHS-I Class 10 and V10 support for Full HD recording and playback.
- Works with microSDHC and microSDXC-compatible host devices.
Cons
- Some dash cams or devices may need FAT32 (or another specific) formatting step before installation.
- No included adapter, so you need one if your setup requires it.
- Speed ratings are best suited for typical UHS-I scenarios, not higher-end microSD formats beyond this class.
What buyers think
Buyer-review evidence is generally positive, with themes focused on reliability and compatibility in common use cases like dash cams and portable devices. Many buyers report that the card works as intended out of the box in their gadgets. A smaller but relevant theme is formatting, where at least some dash-cam style setups may require changing the file system (for example, to FAT32) before the device will accept the card. Review evidence also suggests that buyers appreciate the value positioning for the included capacity and advertised speed class, especially when upgrading from lower-performing or off-brand cards.
Who this microSD card is best for
The SanDisk Ultra SDSQUNS-128G-GN6MN is a solid match if you want a dependable 128GB microSDXC card for mainstream consumer devices and everyday media workflows.
- Dash cam users: It is often chosen for ongoing recording, but plan for formatting steps if your dash cam is picky about file systems.
- Smartphones and tablets: The A1 performance class makes it a practical option for users who want quicker app loading on supported devices.
- Full HD video recording devices: With UHS-I Class 10 and V10 support, it is aimed at smooth Full HD capture and playback.
- General storage upgraders: If you are replacing slower or less reliable cards, the 80MB/s transfer rating is a noticeable improvement for moving files.
Performance and speed, explained simply
This microSDXC card targets mainstream UHS-I usage. The key practical numbers are the advertised up to 80MB/s transfer speed and its speed-class positioning for Full HD video use (UHS Speed Class U1 and Speed Class 10, plus V10).
Two things to keep expectations realistic:
- Real-world speeds vary based on the host device, file type, and whether you are recording vs. transferring.
- Video reliability depends on proper formatting and device compatibility, which is why dash cam setups sometimes require a specific file system.
Compatibility checklist before you buy
To avoid the most common “it doesn’t work” situations, confirm the host device requirements first:
- Card type: This is a microSDXC card, and it should work with devices that support microSDHC and microSDXC.
- Speed class expectations: For Full HD video, the UHS-I Class 10 and V10 positioning is intended to fit that workload.
- Formatting requirements: If you are installing it into a dash cam, double-check whether the device expects FAT32 or a particular setup. Formatting can be the difference between immediate acceptance and an “unusable card” situation.
Pros and cons in plain terms
Pros
- Good value for 128GB storage: Buyers often purchase it to upgrade from older or lesser-quality cards.
- Balanced feature set for daily use: 80MB/s transfer speed plus A1 app performance for compatible devices.
- Designed for Full HD video workflows: Class 10 and V10 ratings align with typical Full HD needs.
- Generally reliable once configured: Reviews commonly mention it working as expected in compatible devices.
Cons
- Formatting might be required: Some devices may not accept the card until the file system matches what they expect.
- No adapter included: If you need to use it in a device that requires a microSD to SD adapter, make sure you already have one.
Is it worth it?
It is worth considering if you want a mainstream, reputable 128GB microSDXC card for storage, Full HD video, and (on supported phones/tablets) A1-style app loading. If you are buying for a dash cam or other equipment with strict formatting rules, treat the card as a reliable option, but be ready to format it to match the device’s expectations.
FAQ
Do I need an adapter?
This listing does not indicate that an SD adapter is included. If your computer or reader uses a standard SD slot instead of microSD, you will need a compatible microSD-to-SD adapter.
Will this work in a dash cam?
It is commonly selected for dash cams because it supports Full HD use, but some dash cam models may require a specific formatting setup (for example, FAT32) before the device will accept the card.
What speed class is it?
It is positioned as UHS-I with U1 and Class 10 support, plus V10 for Full HD video recording and playback. It is also rated up to 80MB/s for transfers.
Is it compatible with microSDHC devices?
It is designed to be compatible with host devices that support microSDHC and microSDXC.
How much storage do you get?
The card capacity is 128GB microSDXC.
Specifications
| Product Title | SanDisk Ultra SDSQUNS-128G-GN6MN 128GB 80MB/s UHS-I Class 10 microSDXC Card |
|---|---|
| Category | Electronics > Computers & Accessories > Computer Accessories & Peripherals > Memory Cards > Micro SD Cards |
| Brand | Sandisk |
| Manufacturer | SanDisk |
| Model Name | SDSQUNS-128G-GN6MN |
| Model Number | SDSQUNS-128G-GN6MN |
| Item Weight | 0.01 Kilograms |
| Color | Grey, White |
| Flash Memory Type | Micro SDXC |
| Memory Storage Capacity | 128 GB |
| Compatible Devices | Smartphone |
| Additional Features | Temperature Proof, Water Proof, X Ray Proof |
| Read Speed | 80 Megabytes Per Second |
| Media Speed | 100MB/s |
| Hardware Connectivity | microSDXC |
| Secure Digital Association Speed Class | Class 10 |
| Flash Memory Video Speed Class | V10 |
| Item Dimensions L x W | 0.59"L x 0.43"W |
| UPC | 619659169893 |
| Global Trade Identification Number | 00619659169893 |
| Mfr Part Number | SDSQUNS-128G-GN6MN |
| Warranty Type | Limited |
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