




Viofo 128GB Dash Camera MicroSD Card U3 A2 V30 High Speed Endurance Memory Card
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The Viofo 128GB MicroSD card is an industrial-grade, high-endurance memory card rated U3, A2, V30 and Class 10, with read speeds up to 100MB/s and write speeds up to 80MB/s. It supports Ultra HD 4K recording and is optimised for dash cam use, from the Viofo accessories range.
This listing is the 128GB. The Viofo high-endurance MicroSD card is also available in 256GB and 512GB.
Key specifications
- Capacity: 128GB
- Speed class: U3, A2, V30, Class 10
- Read speed: up to 100MB/s
- Write speed: up to 80MB/s
- Operating temperature: -25°C to 85°C
- Waterproof, anti-X-ray, anti-magnetic
- SD adapter included
- Warranty: 1 year
High endurance microSD card
Viofo's industrial-grade microSD cards are built for extended endurance and reliability in demanding conditions. Waterproof, anti-X-ray and anti-magnetic, they handle the continuous write cycles that dash cams and action cameras require.
With read speeds up to 100MB/s, transferring footage to your computer is fast and straightforward. The card supports Ultra HD 4K, 3D and burst-mode recording.
Viofo optimises these cards specifically for dash cam recording, offering confidence in both compatibility and long-term durability.
Transfer speed
U3, Class 10 ratings deliver read speeds up to 100MB/s and write speeds up to 80MB/s, giving smooth, uninterrupted recording for 4K dash cam footage.
- Read speed: up to 100MB/s
- Write speed: up to 80MB/s
Made for dash cams and monitoring systems
The Viofo microSD card is designed to meet the demands of continuous dash cam and monitoring use, with the durability and consistent performance that always-on recording requires.
Wide compatibility
Compatible with a broad range of devices:
- Dash cams
- Action cams
- Body cams
- Phones
- DSLRs
- Drones
- Surveillance systems
U3, A2, V30 performance
High-quality chips underpin the U3, A2, V30 ratings, supporting 4K, Ultra HD and 3D video as well as burst-mode shooting. An SD adapter is included for use with devices that have a full-size SD card slot.
Explore the full range in Micro SD Cards.
Specification
| Operating Temperature | -25℃ – 85℃ |
|---|---|
| Storage | Temperature -40℃ – 85℃ |
More specs
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What's Included
- 128GB Micro SD Card
- Micro SD Card Adaptor
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Viofo
About the Viofo 128GB-SD
From our tech experts at CEN
This is a high-endurance 128GB microSD card rated U3, A2 and V30, made for the constant overwriting a dash cam does rather than the occasional use an ordinary card is designed for.
Which size do I need?
A dash cam never stops writing, so the card size decides how far back your footage goes before it loops over itself. As a rule of thumb:
- 64GB — a single 1080p or 2K camera, roughly a few hours of loop
- 128GB — one 4K camera, or a 2-channel 2K setup like the A229 Plus
- 256GB — 2 and 3-channel systems, and 4K at 60fps such as the A329S
- 512GB — 4-channel systems, full-shift taxi and private hire work, and fleet vehicles
Buy a size up if you use parking mode, since the camera keeps writing while you are away from the car, or if you only check footage every week or two.
Our tech experts advise
128GB suits most single-camera and 2-channel 2K setups: enough for a single 4K camera or a 2-channel 2K system with room for parking mode. If you are running one of the 4K cameras with a rear channel as well, step up to 256GB. Format it in the camera on first use. See all VIOFO accessories.
Explore the full Viofo range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Viofo
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Frequently Asked Questions
Q: Is this accessory compatible with my dash cam?
A: Dash cam accessories are generally model-specific. The compatible camera models are listed in the product description, and you can contact CEN to confirm compatibility before ordering.
Q: Can CEN fit this accessory?
A: Yes. CEN offers professional dash cam and accessory installation from our Nottingham premises. Contact us to book.
Q: What speed is the VIOFO 128GB microSD card?
A: It is rated U3, A2 and V30 (Class 10), with read speeds up to 100MB/s and write speeds up to 80MB/s, fast enough for Ultra HD 4K recording.
Q: Does the VIOFO 128GB card come with an adapter?
A: Yes. The box contains the 128GB microSD card and an SD card adapter.
Q: Is the VIOFO card suitable for continuous dash cam recording?
A: Yes. It is an industrial-grade high endurance card designed for dash cams, and it is waterproof, anti-X-ray and anti-magnetic.
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