Will this card work for a cobra 4 channel security system the instructions say i need a 256gb sd card?

Works well in my sony camera, if the ccs says 256gb this should work.

How many pictures will this hold

Depends on what resolution you are using.

Can I use this memory card for canon eos t7 camera?

Dear customer, We checked your camera specifications, and confirmed that this camera model supports memory expansion up to 256GB Thank you, Gigastone

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– Gigastone 256GB SDXC Memory Card 4K Pro Series Camera Transfer Speed Up to 100MB/s Compatible with Canon Nikon Sony Camcorder, A1 V30 UHS-I Class 10 for 4K UHD Video

Product ID: 516646061

Details

Brand
Gigastone
Compatible devices
Camera
Flash memory type
SDXC
Memory storage capacity
256 GB
Model name
Gigastone

⚡100MB/s blazing transfer speed

🎥4K UHD video-ready A1 V30 Class 10

🛡️Waterproof, shock & X-ray proof durability

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$250.22

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎬 Capture Brilliance, Store Fearlessly

PROVEN RELIABILITY - Passed rigorous durability and speed tests, so you can trust your memories are secure during every shoot.
CINEMA GRADE 4 K READY - Certified A1 V30 Class 10 ensures smooth, stutter-free 4K UHD video recording for professional-grade content.
BLAZING FAST TRANSFERS - Up to 100MB/s read speed means no waiting—capture and offload your 4K footage in a flash.
PEACE OF MIND WARRANTY - Backed by a 5-year limited warranty, because your gear deserves long-term protection.
BUILT FOR ANY ADVENTURE - Waterproof, shockproof, temperature, X-ray, and magnetism resistant—your data stays safe wherever you go.

The Gigastone 256GB SDXC Memory Card combines ultra-fast 100MB/s transfer speeds with A1 V30 Class 10 certification, making it ideal for seamless 4K UHD video recording. Engineered for durability, it resists water, shock, temperature extremes, X-rays, and magnetism, ensuring your data remains safe in any environment. Compatible with top camera brands like Canon, Nikon, and Sony, it comes with a 5-year limited warranty for professional peace of mind.

Specifications

ASIN	B093BRY83H
Best Sellers Rank	4,312 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 29 in SD Cards
Brand Name	Gigastone
Colour	256gb Camera Pro
Compatible Devices	Camera, Personal Computer
Country of Origin	Taiwan
Customer Reviews	4.6 4.6 out of 5 stars (2,491)
EU Spare Part Availability Duration	5 Years
Flash Memory Type	SDXC
Flash Memory Video Speed Class	V30
Hardware Connectivity	SDXC
Manufacturer	Gigastone
Manufacturer Part Number	Gigastone
Media Speed	90
Memory Storage Capacity	256 GB
Model Name	Gigastone
Model Number	Gigastone
Product Features	Magnetic Proof, Water Proof, X Ray Proof
Product Warranty	5 year manufacturer
Read Speed	100 Megabytes Per Second
Secure Digital Association Speed Class	Class 10
UPC	804272757316
Unit Count	1.0 count
Warranty Type	Limited

Reviews

S**G

Good

Very good and good value for money

31.01.2026

A**T

Gigastone 256gb sdxc memory card

Great SD card

20.01.2026

K**N

Great value memory card

Great memory card. Good value for money for the size. Great for storing all my photographs

29.03.2026

A**R

Great

Work well good images . Very clear , bright

9.04.2026

N**A

Perfect

Perfect just what I needed

22.03.2026

M**F

Great photos

Very good card

20.12.2025

C**.

Not 256GB

Card is 238GB not 256GB

20.08.2023

L**N

Memory Card

Great item as described , good value and fast delivery.

30.11.2025

C**U

J'ai acheté cette carte SDXC pour un appareil Kodak PIXPRO. Aucun problème, la carte a été reconnue et formatée, j'ai pris quelques photos et de petits vidéos, aucune hésitation ou retard dans l'enregistrement ou visionnement. Par curiosité j'ai essayé cette carte sur un appareil Nikon qui appartient à ma fille, la même performance. J'avais aussi un Canon PowerShot SX20 vieux de 17 ans (2009) avec une petite carte SD 8GB, j'ai acheté deux GIGASTONE SD 32 GB et je suis heureux. sont parfaitement compatibles, j'ai ressuscité mon appareil, j'ai lui donné une deuxième vie. Et des prix imbattables par rapport à la qualité, autant pour la carte SDXC 256 GB que pour les deux cartes SD 32GB. Essayez cette marque! De plus en cas de problème les cartes sont retournables sur Amazon!

4.02.2026

G**.

Value for money. Very fast read & write speed.

16.11.2024

小**郎

問題なく保存されており良いです

22.10.2025

Y**Y

Está perfecta cumple con lo prometido y llego a tiempo

13.02.2026

T**S

Works as it should. Arrived quickly. Let's see how long it lasts with normal usage.

23.02.2026

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$250.22

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

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