Is this card fast enough for 4K video?

No rating for 4K is published. It is a Class 10 card rated for 1080p full-HD capture, so use a UHS Speed Class 3 (V30) card for 4K.

Will it work in a phone or tablet?

Yes, if the device takes a microSD card. The card is a standard microSD format and works in phones, tablets, action cameras, dash cams and card readers.

Why is my transfer speed lower than 100MB/s?

The 100MB/s figure is a peak read speed. Write speed, the card reader, the adapter and the USB port all affect real transfer rates, and slow readers cap the card.

Is it really waterproof and shockproof?

The card is described as waterproof, temperature proof, shock proof and X-ray radiation proof, which covers accidental splashes, drops and airport scanners.

How much 1080p video fits on 256GB?

Roughly 10 to 20 hours of 1080p footage at typical bitrates, or tens of thousands of photos, depending on resolution and file size.

Does it come with an adapter?

No adapter is listed. A full-size SD adapter is needed to use it in a standard SD slot.

Where is the 5-Star 256GB Micro SD High Speed Memory Card cheapest?

At Walmart, for $34.95, as of our latest check.

What do buyers say about the 5-Star 256GB Micro SD High Speed Memory Card?

Rated 3 out of 5 from 2 ratings.

5 Star

5-Star 256GB Micro SD High Speed Memory Card

Best price now

$34.95at WalmartChecked Nov 8

Prices are checked against each store and labelled with when.

Visit Walmart

5 Star

5-Star 256GB Micro SD High Speed Memory Card

Best price now

$34.95at WalmartChecked Nov 8

Prices are checked against each store and labelled with when.

Visit Walmart

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Price facts

Last seen at $34.95 at Walmart on Nov 8.

Our take on the 5-Star 256GB Micro SD High Speed Memory Card

The 5 Star 256GB Micro SD card is a Class 10 microSD card rated for transfer speeds up to 100MB/s and built to survive water, temperature swings, shock and X-ray exposure. It is aimed at phones, tablets, action cameras and dash cams that need a large card for 1080p video and photo libraries. Against branded cards from SanDisk and Samsung it offers the same headline Class 10 rating and rugged build, but it lacks a published UHS speed class or V30 rating, so it is not the pick for 4K recording or sustained burst shooting. Buyers should treat the 100MB/s figure as a best case that depends on the reader and host device.

Best forPhone and tablet storage expansion1080p action camera and dash cam recordingPhoto and media libraries on a budgetSpare card for travel and field use

Pros

Large 256GB capacity for photos and 1080p video
Class 10 rating for full-HD recording
Waterproof, shockproof, temperature and X-ray resistant
Works in phones, tablets, cameras and card readers
Simple plug-and-play with no setup

Cons

No UHS speed class or V30 rating published
100MB/s speed depends on the reader and host device
Not rated for 4K video or sustained burst shooting
Real-world write speeds are usually well below the read figure

5-Star 256GB Micro SD High Speed Memory Card prices at every store

WalmartNew
In stockSold by InkjetsclubReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$34.95Free shippingChecked Nov 8
Visit Walmart

About the 5-Star 256GB Micro SD High Speed Memory Card

This is a 256GB micro SD memory card from 5 Star. It is rated Class 10 and reaches transfer speeds of up to 100MB/s.

The card captures, plays back and transfers media files, including 1080p full-HD video. It is waterproof, temperature proof, shock proof and X-ray proof.

Actual speed depends on the card reader, adapter and USB port used. A low-quality device will slow the card down.

Brand: 5 Star
Type: Micro SD card
Capacity: 256GB
Speed class: Class 10
Transfer speed: Up to 100MB/s
Video: Supports 1080p full-HD
Durability: Waterproof, temperature proof, shock proof, X-ray proof

Questions and answers

Is this card fast enough for 4K video?: No rating for 4K is published. It is a Class 10 card rated for 1080p full-HD capture, so use a UHS Speed Class 3 (V30) card for 4K.
Will it work in a phone or tablet?: Yes, if the device takes a microSD card. The card is a standard microSD format and works in phones, tablets, action cameras, dash cams and card readers.
Why is my transfer speed lower than 100MB/s?: The 100MB/s figure is a peak read speed. Write speed, the card reader, the adapter and the USB port all affect real transfer rates, and slow readers cap the card.
Is it really waterproof and shockproof?: The card is described as waterproof, temperature proof, shock proof and X-ray radiation proof, which covers accidental splashes, drops and airport scanners.
How much 1080p video fits on 256GB?: Roughly 10 to 20 hours of 1080p footage at typical bitrates, or tens of thousands of photos, depending on resolution and file size.
Does it come with an adapter?: No adapter is listed. A full-size SD adapter is needed to use it in a standard SD slot.
Where is the 5-Star 256GB Micro SD High Speed Memory Card cheapest?: At Walmart, for $34.95, as of our latest check.
What do buyers say about the 5-Star 256GB Micro SD High Speed Memory Card?: Rated 3 out of 5 from 2 ratings.

More micro sd cards

Silicon Power 512GB High Endurance MicroSD Memory Card with Adapter

Lexar PLAY UHS-I microSDXC Memory Card

Lexar High Endurance 64GB UHS-I microSDXC Memory Card

Silicon Power 1TB Superior UHS-1 V30 A2 microSD Memory Card with Adapter