Will this work on a Dashcam?

I would only use this for 1080p dashcams. Anything 1440p and higher, find a faster one. The "endurance" cards are useless if they can't support the write speed. I learned the hard way.

What company makes these? i get that it’s amazon, but is this samsung or another company?

Longsys Electronics makes these cards. They also make the chips used in the Lexar brand

do i use this for more kindle devise memory?

Kindle accepts standard size SD cards, not Micro SD cards. However the adapter that comes with every Micro SD card, allows the Micro SD to be read inside devices that only use standard size SD cards... Since the adapter turns your Micro SD into a full size card you could use it with a kindle, but it needs to be INSIDE THE ADAPTER. The adapter allows interoperability between devices, so you can transfer bulk files easily from your kindle to something needing a micro SD, like a cell phone. It mustn't ever be inserted to a kindle as a microSD without an adapter, it'd get stuck in the slot, and you'd only have on board storage available. If you're at all unsure about how to use the adapter, or don't need to use it in other devices at all, full size SD cards (which don't need any adapter) are actually cheaper the their micro SD counterparts. Here's an example of a full size SD card, that you could insert in your kindle without an adapter (it costs a bit less too). I hope this info helped someone! https://amzn.to/3F7ZDv3

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Amazonベーシック microSDXC メモリーカード 256GB フルサイズアダプター付き A2 U3 読み込み速度最大100MB/秒ブラック

Product ID: 726508899

Details

フラッシュメモリタイプ
Micro SDXCカード
ブランド
Basics)
メモリストレージ容量
256 GB
モデル名
Amazon Basics
対応デバイス
カメラ

⚡100MB/s read speed

💾256GB high capacity

🌧️IPX6 water resistant

¥19089

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💾 Store More, Play Harder, Anywhere.

BUILT FOR ADVENTURE - Shockproof, IPX6 water-resistant, and temperature-hardened for any environment.
MASSIVE STORAGE POWER - 256GB capacity to store your 4K videos, RAW photos, and apps effortlessly.
SEAMLESS 4 K FULL HD - Optimized for high-bitrate video and smooth 4K UHD playback without lag.
BLAZING FAST TRANSFERS - UHS-I U3 & A2 certified for up to 100MB/s read speeds—no more waiting.
UNIVERSAL COMPATIBILITY - Works flawlessly with Nintendo Switch, cameras, and Android devices.

Amazon Basics 256GB microSDXC card with full-size adapter delivers ultra-fast 100MB/s read speeds, A2 & U3 certifications for app performance, and rugged durability with IPX6 water resistance and shockproof design—perfect for gamers, creators, and outdoor pros needing reliable, high-capacity storage.

Specifications

ASIN	B08TJZDJ4D
Amazon 売れ筋ランキング	パソコン・周辺機器 - 130位 ( パソコン・周辺機器の売れ筋ランキングを見る ) microSDカード - 4位
UPC	840095874038
おすすめ度	4.4 5つ星のうち4.4 (25,888) var
カラー	ブラック
デジタル関連スピードクラスを確保	クラス10
ハードウェアインターフェイス	microSDXC
メモリメディアストレージ容量	256 GB
メーカー名	Amazon
メーカー型番	LSMICRO256GU3
ユニット数	1 個
互換デバイス	カメラ
付属品総数	1
保証内容	12 months
内蔵メモリータイプ	Micro SDXCカード
原産国	台湾
品目の寸法（D x W x H）	1奥行き x 15幅 x 11高さ mm
商品の寸法 L x W	11長さ x 15幅 mm
商品の追加説明1	マグネットプルーフ
型番	LSMICRO256GU3
書き込み速度	90 MB per second
読み込み速度	100 メガバイト毎秒

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¥19089

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Amazonベーシック microSDXC メモリーカード 256GB フルサイズアダプター付き A2 U3 読み込み速度最大100MB/秒 ブラック

Details

Details

Description

Specifications

Common Questions

Amazonベーシック microSDXC メモリーカード 256GB フルサイズアダプター付き A2 U3 読み込み速度最大100MB/秒ブラック