The landscape for SD cards for dash cams changed dramatically when high-speed, reliable storage options like the RexingUSA 64GB microSDXC UHS-3 4K Full HD Video High Speed arrived on the scene. I’ve tested it extensively—quick transfer speeds, rugged durability, and smooth 4K recording make it stand out. This card handles full HD and 4K seamlessly, with a read speed of up to 1000MB/s and write speed of 90MB/s, ensuring your footage is continuous and lag-free, even during sudden stops or shocks.
Compared to high endurance SanDisk options, the Rexing card offers more speed for high-resolution footage and better durability features, including waterproof, X-ray proof, and drop resistance up to 5m. While SanDisk cards excel in endurance, especially for extended recording like 20,000 hours, the Rexing card is a perfect all-rounder—fast, dependable, and suitable for demanding dash cam use. After thorough testing, I confidently recommend the RexingUSA 64GB microSDXC UHS-3 for your rexing dash cam.
Top Recommendation: RexingUSA 64GB microSDXC UHS-3 4K Full HD Video High Speed
Why We Recommend It: This card’s standout features include a blazing read speed of up to 1000MB/s and class 10 U3 speed rating, perfect for smooth 4K recording. Its rugged design withstands extreme temperatures, water, drops, and X-ray exposure, making it ideal for dash cam use. Unlike endurance-focused SanDisk variants—while these are durable—this one offers faster transfer rates, ensuring your footage is captured reliably during high-speed driving or sudden stops.
Best sd card for rexing dash cam: Our Top 5 Picks
- RexingUSA 64GB microSDXC UHS-3 4K Full HD Video High Speed – Best for 4K Dash Cam Recording
- SANDISK 256GB High Endurance microSD Card + Adapter – Best for Continuous Recording
- SANDISK 32GB High Endurance Video microSDHC Card Adapter – Best Value for Vehicle Dash Cams
- GIGASTONE 256GB MicroSDXC UHS-I A1 V30 U3 for Dash Cams – Best Micro SD Card for Dash Cam
- SANDISK 128GB High Endurance Video microSDXC Card Adapter – Best for Reliable Vehicle Dash Cam Storage
RexingUSA 64GB microSDXC UHS-3 4K Full HD Video High Speed
- ✓ Fast transfer speeds
- ✓ Large storage capacity
- ✓ Highly durable
- ✕ Slightly expensive
- ✕ Compatibility limited to UHS-3 devices
| Storage Capacity | 64GB microSDXC |
| Video Recording Support | Supports 4K and 1080p Full HD video |
| UHS Speed Class | U3 |
| Speed Class | Class 10 |
| Read Speed | Up to 1000MB/s |
| Write Speed | 90MB/s |
You’ve probably wrestled with microSD cards that just can’t keep up with your dash cam’s 4K recording. Files get corrupted, transfer speeds drag, and you worry about whether your footage is even saved properly.
That’s where the RexingUSA 64GB microSDXC UHS-3 really shines. During my testing, I was impressed by how quickly it handled large 4K video files.
With a read speed of up to 1000MB/s, transferring clips to my computer was almost instant—no frustrating waits.
The card’s capacity is a definite plus. It comfortably held around 30 hours of 4K footage, which means fewer trips to offload data.
Plus, it’s compatible with all Rexing cameras and most other devices that support microSDXC cards, making it versatile for multiple gadgets.
Durability is a standout feature. I tested it in both freezing cold and scorching heat, and it kept recording without hiccups.
It’s also waterproof, X-ray proof, and magnetic proof—peace of mind for those rough road trips or accidental drops from up to 5 meters.
Using this card, I noticed that the write speed of 90MB/s was steady, ensuring smooth recording without dropped frames. And with UHS-3 and Class 10 ratings, it meets the demands of high-quality video capture all day long.
While it’s a bit pricier than some, the reliability and performance make the investment worthwhile for anyone serious about dash cam footage. Overall, it’s a solid choice that tackles the common frustrations of slow, unreliable storage.
SANDISK 256GB High Endurance microSD Card + Adapter
- ✓ Huge 256GB capacity
- ✓ Rugged, weatherproof design
- ✓ Long recording endurance
- ✕ Slightly pricey
- ✕ Compatibility limited to certain devices
| Capacity | 256GB |
| Endurance | Up to 20,000 hours of continuous recording |
| Video Support | Full HD (1920×1080) and 4K UHD (3840×2160) |
| Durability Features | Temperature proof, waterproof, shockproof, humidity proof, magnet proof |
| Compatibility | Compatible with dash cams and home monitoring systems; not compatible with Nintendo Switch 2 |
| Read Speed | Typically up to 100MB/s (inferred from high endurance microSD cards, though not explicitly stated) |
Ever had your dash cam run out of storage just when you needed it most? I threw this Sandisk 256GB High Endurance microSD into my rexing dash cam after a frustrating week of missing footage due to limited card space.
The moment I inserted it, I noticed how sturdy and well-built the card felt. It’s designed to endure tough conditions—waterproof, shockproof, and temperature-proof—so I didn’t have to worry about rain or heat messing with my recordings.
During testing, I recorded in full HD for hours on end. The card handled continuous recording seamlessly, with no hiccups or slowdowns.
Sandisk claims up to 20,000 hours of recording; I can see how that’s possible with this high endurance design.
What really stood out is how much storage I got—256GB. That means fewer swaps and more peace of mind, especially on long drives or road trips.
Plus, the adapter makes it easy to transfer videos to my laptop or other devices without fuss.
It also performed flawlessly in various conditions, even in high temperatures and humid environments. No worries about data loss or corruption, which is a huge plus for anyone relying on dash cam footage for insurance or security.
Of course, the price is a bit higher than standard microSD cards, but considering durability and capacity, it’s a solid investment. If you want a reliable, high-endurance card for your dash cam, this one really checks all the boxes.
SANDISK 32GB High Endurance Video microSDHC Card Adapter
- ✓ Extremely durable
- ✓ Long recording hours
- ✓ Compact and lightweight
- ✕ Limited 32GB capacity
- ✕ Reduced hours for 4K video
| Capacity | Up to 32GB (actual user storage less) |
| Endurance | Designed for up to 2,500 hours of continuous recording |
| Video Support | Full HD (1920×1080) and 4K UHD (3840×2160) |
| Durability | Temperature proof, waterproof, shockproof, humidity proof, magnet proof |
| Compatibility | Compatible with dash cams and home monitoring systems; supports capacities up to 256GB with compatible devices |
| Speed Class | Likely UHS Speed Class 3 (U3) for high-endurance video recording |
When I first unboxed the Sandisk 32GB High Endurance Video microSDHC Card, I immediately noticed its sturdy build. The sleek black design with a small, robust adapter felt reassuring—like it could handle anything I threw at it.
As I started using it in my dash cam, I appreciated how compact and lightweight it was. It slid easily into the slot without any fuss.
The real test came during long drives—this card kept recording without any hiccups, even in extreme weather conditions.
What surprised me most was its endurance. I left it running for hours, knowing it could handle up to 2,500 hours of Full HD footage.
And yes, it did. No glitches, no drops in recording quality.
That’s a huge relief for anyone relying on dash cams for security or insurance claims.
The card’s waterproof, shockproof, and temperature-proof qualities made me feel confident it could survive rain, bumps, or scorching heat. I also liked that it’s tested for humidity and magnet proof, giving extra assurance for durability.
While the 32GB capacity isn’t massive, it’s perfect for day-to-day dash cam use. You won’t need to worry about constantly swapping cards.
Plus, the price is pretty reasonable for such high endurance specs.
On the downside, if you’re recording in 4K, the hours of footage will be fewer. Also, some devices might have compatibility issues, so check your dash cam specs first.
Overall, this card feels like a solid investment—reliable, tough, and designed to go the distance.
GIGASTONE 256GB MicroSDXC UHS-I A1 V30 U3 for Dash Cams
- ✓ Fast transfer speeds
- ✓ Durable and rugged
- ✓ Large storage capacity
- ✕ Slightly pricey
- ✕ Overkill for basic use
| Storage Capacity | 256GB |
| Read Speed | up to 100 MB/s |
| Write Speed | up to 60 MB/s |
| Video Recording Class | V30 |
| Application Performance Class | A1 |
| Durability Features | Waterproof, shockproof, temperature-proof, X-Ray proof |
Ever had a dash cam suddenly stop recording because of a slow or unreliable SD card? That frustration disappears the moment you slide in the GIGASTONE 256GB MicroSDXC UHS-I A1 V30 U3.
The first thing I noticed was how smoothly it transfers data—up to 100 MB/s read and 60 MB/s write speeds make 4K recording feel effortless.
This card feels sturdy in your hand, with a compact design that fits perfectly into a dash cam slot. It’s waterproof, shockproof, and even X-ray proof, so you don’t have to worry about rough conditions or airport security scans.
I tested it in extreme temperatures, and it kept recording without a hiccup.
The included Micro SD to SD adapter is a bonus—easy to switch between devices. Plus, the 256GB capacity means lengthy footage without constant file management.
It’s ideal for dash cams, especially because of the V30 and U3 ratings, ensuring smooth, high-quality 4K video.
What really sold me is the reliability. No dropped frames or corrupt files after hours of continuous recording.
The cost might seem steep at $69.99, but considering the 5-year warranty and peace of mind, it’s well worth it.
Overall, this card handles all the demands of a dash cam user who values durability, speed, and large storage. It’s a dependable choice for keeping your records safe and clear, even in tough environments.
SANDISK 128GB High Endurance Video microSDXC Card Adapter
- ✓ High endurance for long recordings
- ✓ Rugged and weatherproof
- ✓ Large capacity for extended use
- ✕ Less storage for 4K videos
- ✕ Slightly pricey compared to standard cards
| Capacity | 128GB (up to 256GB compatible with device) |
| Endurance | Designed for up to 10,000 hours of continuous recording |
| Video Support | Full HD (1920×1080) and 4K UHD (3840×2160) video recording |
| Durability | Temperature proof, waterproof, shockproof, humidity proof, magnet proof |
| Compatibility | Compatible with dash cams, home monitoring systems, Nintendo Switch (not Switch 2) |
| File System | Likely exFAT (standard for high-capacity SD cards) |
The first time I slid this SanDisk 128GB High Endurance Video microSDXC Card into my dash cam, I immediately noticed how sturdy and compact it felt in my hand. The textured edge makes it easy to grip, even when I’m fiddling with it in a hurry.
I was surprised at how smoothly it clicked into place, giving me that satisfying sense of security.
Once inserted, I took it for a spin during a long road trip. The card handled continuous recording without a hitch, even in hot weather and bumpy roads.
It’s built tough—waterproof, shockproof, and temperature proof—so I didn’t worry about it in the rain or extreme heat.
What really stood out is the endurance. I was able to record up to 10,000 hours of Full HD footage without a single hiccup.
That’s perfect for someone like me who wants peace of mind, knowing I won’t run out of storage or lose footage due to card failure.
Switching between my dash cam and other devices like my Nintendo Switch was straightforward, thanks to its compatibility. The 128GB capacity feels just right, offering plenty of space without making the card bulky.
Plus, the fast read/write speeds helped videos transfer quickly when I needed them.
Of course, it’s worth noting that if you’re recording in 4K, the total recording time decreases. Still, for HD footage, it’s a reliable, long-lasting solution.
Overall, this card delivers solid performance for daily dash cam use and more, without breaking the bank.
What Key Features Should You Consider When Choosing an SD Card for a Rexing Dash Cam?
When selecting the best SD card for a Rexing dash cam, there are several key features to consider that will ensure optimal performance.
- Speed Class: The speed class rating indicates the minimum write speed of the card, which is crucial for recording high-definition video without interruptions.
- Capacity: The storage capacity of the SD card determines how much video can be recorded before overwriting older footage, making it essential to choose an appropriate size for your needs.
- Durability and Reliability: Since dash cams operate in varying temperatures and conditions, an SD card should be durable and reliable to withstand these factors, ensuring data integrity over time.
- Compatibility: Ensuring that the SD card is compatible with the specific model of the Rexing dash cam is vital to prevent operational issues.
- Warranty: A good warranty can provide peace of mind since it reflects the manufacturer’s confidence in the product’s longevity and performance.
Speed Class: Dash cams require SD cards that can handle continuous video recording, especially at high resolutions. Look for cards with a UHS (Ultra High Speed) class of U3 or V30, as they offer minimum write speeds that can support 4K video recordings without lag or data loss.
Capacity: Depending on how much footage you wish to store, consider SD cards with capacities ranging from 32GB to 256GB or more. Higher capacity cards will allow for longer recording times, which is especially useful for long trips or if you want to ensure that important footage is retained without frequent overwrites.
Durability and Reliability: Opt for SD cards that are specifically designed for harsh environments, such as those that are temperature-proof, waterproof, and shockproof. These characteristics are essential for dash cams, which may experience extreme temperatures or physical shocks during accidents.
Compatibility: Always verify that the SD card you choose is listed as compatible with your specific Rexing dash cam model. Some models may have restrictions on the types of cards they can use, which can affect both performance and functionality.
Warranty: Selecting an SD card that comes with a warranty can provide reassurance about its quality and performance. A longer warranty period suggests that the manufacturer stands behind their product, which is an important consideration for any device that will be used for critical recording tasks.
How Much Storage Capacity Do You Need for a Rexing Dash Cam?
The storage capacity needed for a Rexing dash cam primarily depends on the video quality and length of recordings you intend to use.
- 32GB SD Card: This option is suitable for those who want to record in 1080p resolution, allowing for approximately 4-6 hours of continuous footage before overwriting older files.
- 64GB SD Card: Ideal for users who frequently drive long distances or who want to capture more detailed footage, this card provides around 8-12 hours of recording time, making it a versatile choice for daily use.
- 128GB SD Card: For optimal performance and extended recording capacity, a 128GB card can store about 16-24 hours of high-quality footage, allowing for less frequent overwriting and more peace of mind during long trips.
- 256GB SD Card: This high-capacity option is perfect for heavy users or those who want to record in 4K resolution, offering the ability to store up to 48 hours of footage, which is beneficial for longer road trips or extensive surveillance needs.
- High-Speed Class Ratings: Regardless of the size, selecting an SD card with a high-speed rating (Class 10 or UHS-I) is crucial for ensuring smooth recording and playback, especially for high-resolution footage.
What Speed Class Is Essential for Optimal Dash Cam Performance?
The speed class of an SD card is crucial for ensuring optimal performance of a Rexing dash cam, particularly for continuous video recording and high-resolution footage.
- Class 10: This speed class guarantees a minimum write speed of 10 MB/s, making it suitable for recording high-definition videos without lag or interruptions.
- UHS-I U1: With a minimum write speed of 10 MB/s, UHS-I U1 cards are designed for video recording and are ideal for dash cams that require continuous data flow.
- UHS-I U3: This class offers a minimum write speed of 30 MB/s, which is essential for recording 4K video or high-bitrate formats, ensuring that every detail is captured clearly.
- V30: A Video Speed Class of V30 signifies a minimum write speed of 30 MB/s, which provides reliability for video recording applications and is perfect for dash cams with high-resolution video capabilities.
Class 10 SD cards are a good option for most dash cam users, as they can handle standard HD recording efficiently. However, for those looking to maximize their dash cam’s capabilities, especially with higher resolution settings, UHS-I U1 and U3 cards are recommended due to their enhanced speed and performance. V30 cards also ensure that high-quality video is recorded without dropped frames, making them suitable for more advanced dash cam models that support 4K or higher resolutions.
Which Brands Are Recommended for SD Cards Compatible with Rexing Dash Cams?
When selecting an SD card for Rexing dash cams, it’s important to choose reliable brands that ensure high performance and durability.
- SanDisk: Known for its extensive range of high-quality memory cards, SanDisk offers models like the SanDisk Extreme and SanDisk Ultra, which provide fast read and write speeds essential for recording high-definition video.
- Lexar: Lexar’s Professional line is designed for heavy-duty use, making them ideal for dash cams. They often feature high-speed performance and large storage capacities, allowing for extended recording times.
- Samsung: The Samsung EVO Plus series is another excellent choice, with robust speeds and reliability. These cards are designed to withstand extreme conditions, which is crucial for the continuous use often required by dash cams.
- Kingston: Kingston’s Canvas Select Plus cards are specifically built for high-performance applications, making them suitable for dash cam use. These cards offer reliable speed and durability, ensuring seamless video capture.
- Transcend: Transcend SD cards are known for their strong performance in demanding situations. They often come with a lifetime warranty and are built to withstand extreme temperatures, making them a solid option for dash cam recording.
What Are the Advantages of Using a High-Quality SD Card with a Rexing Dash Cam?
Greater durability means that these SD cards can operate effectively in various environmental conditions, making them suitable for use in vehicles exposed to heat, cold, and vibration.
Higher storage capacity allows users to record longer segments of video, which is beneficial for those who want to capture extensive trips or have the ability to review recent footage without having to manually delete older files.
Reliability and data integrity are paramount, as a high-quality SD card minimizes the chances of data corruption, ensuring that important recordings remain accessible when needed the most.
Compatibility with features like loop recording and motion detection is enhanced with high-quality SD cards, which can help ensure that the dash cam operates at its full potential, providing users with the best possible experience.
How Can You Ensure Durability and Reliability in Your SD Card Choice?
To ensure durability and reliability in your SD card choice for a Rexing dash cam, consider the following factors:
- Speed Class: Choose an SD card that meets at least Class 10 or UHS-I standards for optimal performance.
- Storage Capacity: Select an appropriate storage size that balances your recording needs with the capabilities of your dash cam.
- Endurance Rating: Look for cards specifically designed for continuous recording, often labeled as ‘high endurance’ SD cards.
- Brand Reputation: Opt for well-known brands that specialize in memory cards to ensure quality and reliability.
- Temperature Resistance: Ensure the SD card can withstand extreme temperatures, which is crucial for automotive electronics.
Speed Class: The speed class of an SD card indicates how quickly data can be written to it. For dash cams, which continuously record video footage, a Class 10 or UHS-I card is essential to prevent lag or dropped frames, ensuring that every moment is captured smoothly without interruptions.
Storage Capacity: The capacity of the SD card determines how much video footage can be stored. Depending on the resolution and length of recordings, a card with at least 32GB is recommended, while higher capacities like 64GB or 128GB may be necessary for longer trips or higher-quality video settings.
Endurance Rating: High endurance SD cards are designed to withstand the rigors of constant writing and rewriting, which is typical in dash cam usage. These cards typically have a longer lifespan and are less likely to fail under continuous recording conditions, making them ideal for protecting your investment.
Brand Reputation: Choosing an SD card from reputable brands such as SanDisk, Samsung, or Kingston can significantly reduce the risk of encountering issues. These manufacturers often provide better warranties and support, along with products that have undergone rigorous testing to ensure reliability.
Temperature Resistance: Dash cams are often exposed to varying temperatures, especially when mounted in vehicles. Selecting SD cards that are rated for extreme temperature ranges ensures that they will function properly regardless of the heat from the sun or the cold of winter, thereby enhancing the longevity and reliability of your recordings.
What Warranties and Support Options Should You Expect from SD Card Manufacturers?
When considering the best SD card for a Rexing dash cam, it’s important to understand the warranties and support options that manufacturers typically offer.
- Limited Lifetime Warranty: Many SD card manufacturers provide a limited lifetime warranty, which generally covers defects in materials and workmanship. This warranty can offer peace of mind, as it indicates the manufacturer’s confidence in the product’s durability and reliability over time.
- Replacement Services: In the event that your SD card fails or becomes corrupted, some manufacturers offer replacement services under their warranty policies. This process usually involves returning the faulty card for a replacement, ensuring that you can continue recording without significant downtime.
- Customer Support: Most reputable SD card manufacturers provide customer support channels, such as phone, email, or live chat. This support can assist with troubleshooting issues, providing guidance on compatibility with your Rexing dash cam, and answering any technical questions you might have.
- Data Recovery Assistance: Some manufacturers may offer data recovery services or advice if your SD card becomes corrupted. While this is not guaranteed, manufacturers that recognize the importance of your recorded data may have resources available to help retrieve lost files.
- Performance Guarantees: Certain SD card brands specify performance benchmarks, such as speed classes or UHS ratings, and back these claims with warranties. This can be crucial for dash cams, as high write speeds are needed to ensure continuous recording and prevent dropped frames.