




Viofo 256GB Dash Camera MicroSD Card U3 A2 V30 High Speed Endurance Memory Card
Couldn't Load Pickup availability
The Viofo 256GB 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 90MB/s. It supports Ultra HD 4K recording and is optimised for dash cams, forming part of Viofo's range of high-endurance microSD cards.
This listing is the 256GB. The Viofo high-endurance microSD card is also available in 512GB.
Key specifications
- Capacity: 256GB
- Speed class: U3, A2, V30, Class 10
- Read speed: up to 100MB/s
- Write speed: up to 90MB/s
- Operating temperature: -25°C to 85°C
- Storage temperature: -40°C to 85°C
- Waterproof, anti-X-ray, anti-magnetic
- Includes SD adapter
- Warranty: 1 year
High endurance microSD card
Viofo's industrial-grade microSD cards are built for extended endurance and reliability. Designed specifically for high-durability applications, they are ideal for dash cams and action cams, and handle harsh conditions thanks to waterproof, anti-X-ray and anti-magnetic construction.
Transfer speed
U3, Class 10 read speeds up to 100MB/s and write speeds up to 90MB/s allow fast file transfers and smooth 4K recording. UHS-3 support keeps Ultra HD footage sharp, and the high write speed ensures consistent performance during continuous dash cam recording.
- Read speeds up to 100MB/s
- Write speeds up to 90MB/s
Made for dash cam and monitoring systems
This card is optimised for dash cam recording, offering strong compatibility and long-lasting durability. It meets the demands of continuous recording in monitoring and surveillance applications.
Wide compatibility for multiple devices
The Viofo microSD card is compatible with a wide range of devices:
- Phones
- Dash Cams
- Action Cams
- Body Cams
- DSLRs
- Drones
- Surveillance
High performance U3, A2, V30
High-quality chips deliver U3, A2, V30 performance, supporting 4K, Ultra HD, 3D video and burst mode. The card comes supplied with an SD adapter, making it compatible with any device that has a standard SD card slot.
Explore the full range in Micro SD Cards.
Specification
| Operating Temperature | -25℃ – 85℃ |
|---|---|
| Storage | Temperature -40℃ – 85℃ |
More specs
| |
What's Included
- 256GB Micro SD Card
- Micro SD Card Adaptor
Bundle & Save
Viofo
About the Viofo 256GB-SD
From our tech experts at CEN
This is a high-endurance 256GB microSD card rated U3, A2 and V30, sized for multi-channel systems that write several streams at once.
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
256GB is the right choice for most 2 and 3-channel setups and for 4K at 60fps, where footage builds fastest. If you drive a full shift as a taxi, private hire or instructor, or run one of the four-channel 3-channel systems, go to 512GB. Format in camera and reformat every few months. 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
Recommended For You
Discover more top-rated gear, handpicked to go with what you're viewing
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: Is the VIOFO 256GB microSD card fast enough for 4K dash cam recording?
A: Yes. It is rated U3, A2 and V30 with read speeds up to 100MB/s and write speeds up to 90MB/s, supporting Ultra HD 4K video recording.
Q: Does the VIOFO 256GB card come with an adapter?
A: Yes. The box contains the 256GB microSD card and a microSD card adapter.
Q: What temperatures can the VIOFO microSD card operate in?
A: It is rated for an operating temperature of -25°C to 85°C and a storage temperature of -40°C to 85°C, and it is waterproof, anti-X-ray and anti-magnetic.
Not Sure Where to Start?
Straightforward advice and the latest news from our Nottingham team.
All Guides and News →
Dash Cams
Motorcycle Dash Cams Explained: What's Different on a Bike
Read the guide →
Dash Cams
New at CEN: VIOFO A149 Pro Duo — 4K Front and Rear for Under £250
Read more →
Dash Cams
Seven Dash Cam Buying Mistakes (And How to Avoid Them)
Read the guide →
Dash Cams
Christmas Gift Guide 2026: Car Audio, Dash Cams and Outdoor Tech
Read the guide →
Dash Cams
Telephoto Dash Cams Explained: Reading Number Plates at Distance
Read the guide →
Dash Cams
Dash Cams in Winter: Night Footage, Condensation and Battery Drain
Read the guide →
































