SanDisk 64GB X2 (128GB) MicroSDXC Ultra Uhs-1 Memory Card
Quick take
This SanDisk microSDXC Ultra UHS-I 2-pack gives you 128GB total (64GB x 2) with Class 10 support and read speeds up to 48 MB/s. It is a practical option for expanding storage on compatible smartphones, tablets, and media devices, and it also shows up in reviews from people using it for security camera style recording. The main caveat is that real-world performance depends heavily on your device and whether it supports the card type and required speed for the task.
Pros and cons
Pros
- 128GB total capacity in a 2-pack (64GB each), useful if you want a spare or matching cards for multiple devices
- Class 10 support and up to 48 MB/s read speed for general storage and media use
- Widely described as easy to format and compatible with common microSDXC devices
- Buyer feedback frequently highlights dependable day-to-day operation for recording and file storage
Cons
- Speed figures are read-oriented, and write performance for heavy continuous recording can vary by device
- Works only if your device supports microSDXC and the right UHS-I capability
- Not the right choice if your priority is the highest endurance or maximum video requirements beyond what Class 10 and Ultra-level cards are meant to handle
What buyers think
Buyer-review evidence for this 2-pack is heavily weighted toward reliability and usability. Many comments focus on straightforward setup (including formatting), smooth storage behavior, and a sense of consistency in day-to-day use. A recurring use case is expanding storage in tablets and supporting camera recording workflows, with buyers describing smooth playback and downloads in typical scenarios. Review evidence is also consistent about compatibility across multiple devices that accept microSDXC cards.
That said, review evidence is limited on the most technical performance fronts, like sustained write speeds under continuous load, so buyers who need predictable high-bitrate recording should still verify their device’s microSDXC and speed requirements before buying.
What you get: capacity, speed class, and card type
This is a microSDXC kit with two 64GB cards (64GB x 2). It uses the microSDXC format (UHS-I / Ultra speed line) and carries a Class 10 designation, which is commonly used for mainstream storage and media. The listed read speed is up to 48 MB/s (10-48 MB/s range). In practice, that profile fits well for things like downloading content, storing photos and apps (when your device supports app storage), and moving files between devices.
Performance in everyday use
Storage expansion for phones and tablets
Reviews frequently point to smooth storage expansion, including ease of formatting and continued usability without file corruption (in the reviewers’ experiences). If your goal is simply adding more space for media and documents, this card’s Ultra + Class 10 baseline is usually in the right lane for typical consumer workflows.
Security camera and continuous recording use cases
Several buyers mention using these cards in security cameras and similar recording setups, emphasizing reliable operation during ongoing recording. The key buying nuance is to match the card’s speed capability to your specific camera’s requirements, because continuous writing is more demanding than typical “store and occasionally transfer” usage.
Compatibility notes to avoid a bad fit
- Confirm microSDXC support: The card is microSDXC, so older devices that only support microSD (non-XC) may not work.
- Check your device’s speed expectations: UHS-I / Class 10 cards can be great for many video and recording tasks, but sustained high-bitrate needs should be verified against the device’s recommended minimum.
- Use the 2-pack intentionally: If you are installing in multiple devices, having two cards can reduce downtime. If you only need one, you may still prefer a single-card option that matches your exact storage requirement.
Pros and cons
If you want a straightforward microSDXC upgrade with solid mainstream speed, this 2-pack is often an easy recommendation. It tends to be favored by buyers who prioritize reliability and uncomplicated setup, especially for tablets and everyday recording scenarios.
- Best for: People adding storage to compatible smartphones and tablets, users wanting a spare card, and buyers running typical continuous recording needs in supported devices.
- Who should consider something else: Anyone with a device that requires a specific minimum video speed rating for higher-end continuous recording, or shoppers who need guaranteed sustained write performance under very demanding workloads.
Price and availability
The current price can vary based on retailer conditions and promotions. For the most up-to-date cost, check the listing here.
Alternatives to consider (by buyer priority)
Rather than naming specific competitors, here are practical paths to compare options:
- If you need maximum sustained video performance: look for cards explicitly rated for the type of recording you are doing (based on your camera or dash cam requirements), not just Class 10.
- If you want the simplest upgrade: match capacity and format (microSDXC) and prioritize cards with straightforward compatibility and easy formatting.
- If you want better value for a single device: compare a single 128GB option versus this 2-pack, since two cards can be more cost-effective only if you will actually use both.
Verdict
The SanDisk 64GB X2 (128GB) microSDXC Ultra UHS-I card kit is a solid pick for buyers who want expandable storage with a mainstream speed profile and a track record of reliable day-to-day use in compatible devices. It is especially appealing when you value the convenience of having two cards for multiple devices or as a backup. Just make sure your device supports microSDXC (and meets the recording speed needs, if you are using it for continuous video).
FAQ
How much total storage is in this kit?
It includes two microSDXC cards, 64GB each, for a total of 128GB.
What speed can I expect?
The card is rated for up to 48 MB/s read speed, with a listed speed range of 10-48 MB/s. Real-world performance can vary by device and workload.
Is this card compatible with phones and tablets?
It is designed for microSDXC capable devices. If your device supports microSDXC and uses UHS-I microSD cards, it should be compatible. Always confirm your device’s microSDXC support before buying.
Will it work for security cameras?
Buyers report using it successfully in security-camera style recording setups. However, continuous recording requirements depend on your specific camera, so check the camera’s recommended speed and card type.
Is the 2-pack better than buying one larger card?
A 2-pack can be more convenient if you are using two devices or want a spare. If you only need one card, a single-card option matching your desired capacity may be simpler.
Specifications
| Product Title | SanDisk 64GB X2 (128GB) MicroSDXC Ultra Uhs-1 Memory Card |
|---|---|
| Category | Electronics > Computers & Accessories > Computer Accessories & Peripherals > Memory Cards > Micro SD Cards |
| Brand | Sandisk |
| Manufacturer | SanDisk |
| Model Name | SDSQUAR-064G-2PK |
| Model Number | SDSQUAR-064G-2PK |
| Item Weight | 0.02 Kilograms |
| Color | Red |
| Flash Memory Type | Micro SD, Micro SDXC, SD |
| Memory Storage Capacity | 64 GB |
| Compatible Devices | Smartphone |
| Additional Features | Class 10 |
| Read Speed | 48 Megabytes Per Second |
| Media Speed | 10-48 MB/s |
| Hardware Connectivity | microSDXC |
| Secure Digital Association Speed Class | Class 10 |
| Item Dimensions L x W | 2"L x 1"W |
| Warranty Type | Limited |
| UPC | 993257478831 |
| Mfr Part Number | SDSQUAR-064G-2PK |
| Built-In Media | 2 |
| Unit Count | 2.0 Count |
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