SD and microSD cards add portable storage to lots of devices. You’ll see them used for:

• Cameras and camcorders: Storing photos, 1080p/4K video, and time-lapse.
• Drones and action cams: Capturing high-bitrate footage on the go.
• Dash cams and security cams: Continuous loop recording and event clips.
• Phones and tablets: Extra space for photos, offline media, and files.
• Handheld gaming devices and laptops: Downloadable games and quick file transfers.

Full-size SD cards typically fit cameras, while microSD cards fit smaller devices. Many microSD cards include an adapter so they can be used in SD slots. On Walmart.com, you can filter by card type, capacity, and speed class to find a good match for your device and usage.

Most home security cameras accept microSD cards, but the exact requirements can vary. For a smoother experience:

• Check your camera’s specs: Look for the supported card family (microSDHC or microSDXC), UHS-I interface, and the maximum capacity listed by the manufacturer.
• Choose the right speed class: Class 10/U1 often works for HD video; higher classes can help with higher bitrates.
• Consider High Endurance: Cards marketed for continuous recording can be helpful for 24/7 loop video.
• Format in the camera: This can improve compatibility; results may vary.

On Walmart.com, filter for microSD, UHS-I, and capacity within your device’s supported range. Look for “High Endurance” in the title if you plan continuous recording.

There are two ways people talk about SD card types:

• Form factor: SD (full-size) and microSD (smaller). Cameras often use SD; compact devices use microSD. Many microSD cards include an SD adapter.
• Capacity families: SDHC and SDXC are the most common you’ll see on Walmart.com for both SD and microSD. SDHC covers moderate capacities, while SDXC covers higher capacities. There are other standards in the broader market, but they’re less commonly used.

When shopping, match the form factor your device needs and choose a capacity family your device supports. You can use Walmart.com filters for card size (SD or microSD), capacity, and speed class to narrow options.

For a modern mirrorless camera, it’s common to use a full-size SD card (often SDHC or SDXC) with a UHS-I interface. Consider your shooting style:

• 4K video or fast bursts: A card with U3 or V30 ratings can help with sustained writes.
• Casual photos/1080p: Class 10/U1 may be sufficient for lighter workloads.
• Capacity: Choose a size that fits your typical shoot length; larger capacities reduce swapping.
• Workflow: Formatting the card in-camera and carrying a spare can help reduce interruptions; results may vary.

Always confirm your camera’s slot type and supported standards in the manual, then use Walmart.com filters for SD, SDHC/SDXC, and the speed class you prefer.

These are performance ratings that hint at how a card handles different tasks:

• U1 / U3: Speed classes for sustained writes. U3 cards are designed for higher sustained rates than U1, which can help with higher-bitrate recording.
• V30 (and other V classes): Video speed ratings tailored for consistent video capture; V30 is common for 4K workflows.
• A1 / A2: App performance ratings for phones and tablets, focused on random read/write and running apps from the card.

Match ratings to your use: video cameras often benefit from U3/V30, while phones/tablets may prefer A1/A2. On Walmart.com, filter by these labels to find cards aligned with your needs.