This is an MK1. The buttons are awful. It goes from not being responsive at all to phantom key presses. Best used with a reliable power source like a battery pack, though I still would get the newer MK2 or MK3 over this one.

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Coldcard Bitcoin Hardware Wallet

Product ID: 90713561

Secure Transaction

Details

Brand
COINKITE
Color
Black
Material
Paper
Style
Minimalist
Pattern
Solid

💻No app needed

💾Micro SD backup

🔒Ultra-secure chip

Frequently Bought Together

Description

🔑 Unlock the Future of Bitcoin Security!

PLUG AND PLAY - No companion app required—works seamlessly with major wallets like Electrum.
SECURE YOUR CRYPTO - Experience peace of mind with a dedicated security chip that keeps your private keys safe.
OPEN SOURCE FREEDOM - Customize your experience with open-source software that allows for flexibility and control.
SIMPLICITY AT ITS BEST - Enjoy a minimalist design with no unnecessary packaging or cables.
EFFORTLESS TRANSACTIONS - Easily manage your Bitcoin with standard PSBT transactions stored on a Micro SD card.

The Coldcard Bitcoin Hardware Wallet by Coinkite is a compact, ultra-secure device designed for managing Bitcoin transactions. Weighing just 1.2 ounces and measuring 2 x 1 x 3 inches, it features a dedicated security chip for private key storage, a Micro SD card slot for easy backup, and compatibility with major wallets without the need for a companion app. Its open-source design allows for customization, making it a top choice for crypto enthusiasts.

Specifications

Brand	COINKITE
Item model number	Coldcard
Item Weight	1.2 ounces
Product Dimensions	2 x 1 x 3 inches
Item Dimensions LxWxH	2 x 1 x 3 inches
Color	Black
Manufacturer	Coinkite
ASIN	B07KNS6PKT
Date First Available	November 1, 2018

Have a Question? See What Others Asked

Is this MK1 or 2?

Reviews

B**E

Careful about the model you get

The model sold by the seller was the MK1 model, which is old and has design flaws. Make sure you are buying the MK2 to MK3 and you are better off buying direct from Coinkite direct.

19.04.2020

S**S

The best option on the market

The one area that I can recommend with this is to use a cell phone battery pack to power this, that ensures that the device never touches anything on the internet (and it makes the buttons work better). Otherwise great product with good support.

5.07.2019

W**I

Arrived inoperable.

The item arrived with no visible damage. When trying to enter a PIN the key pad would ether not respond at all or would enter uncommanded digits. Item is inoperable.

22.01.2021

V**K

DO NOT BUY ON AMAZON

Only purchase the Cold card wallet from the official manufacturer through its official website (coinkite.com) to avoid potential theft. Buying from third parties (especially imposters) risks your assets.

12.10.2019

A**R

Fake

Fake don't buy

12.10.2019

円**相

Bitcoin #OPSEC 101: only ever buy hardware direct from the manufacturer (@coinkite in this case)

If you don't buy direct from the manufacturer you introduce one or more completely unknown attack vectors - you would have to be nuts to do it at any cost savings level - it puts all funds you ever store on the device at risk!

14.06.2020

K**L

Don't buy Fake COLDCARD.

Becareful! Don't buy Coldcard from Amazon. You don't want to lose your valuable bitcoin for buying fake coldcard. Go str8 to the source (coinkite).

5.08.2020

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