---
product_id: 173593404
title: "YubiKey 5Ci"
brand: "yubico"
price: "€ 240.95"
currency: EUR
in_stock: null
reviews_count: 8
category: "Yubico"
url: https://www.desertcart.com.cy/products/173593404-yubikey-5ci
store_origin: CY
region: Cyprus
---

# Cross-platform iOS, Windows, Mac, Linux Dual Lightning & USB-C ports Multi-protocol FIDO2 & OTP support YubiKey 5Ci

**Brand:** yubico
**Price:** € 240.95
**Availability:** ❌ Out of Stock

## Summary

> 🔑 Unlock next-level security with a tap—because your accounts deserve elite protection

## Quick Answers

- **What is this?** YubiKey 5Ci by yubico
- **How much does it cost?** € 240.95 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/173593404-yubikey-5ci)

## Best For

- yubico enthusiasts

## Why This Product

- Trusted yubico brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Lightweight:** Just 3g of robust security that fits in your pocket
- • **Multi-Protocol Powerhouse:** Supports FIDO2, OTP, Smart Card & more for ultimate flexibility
- • **Physical Touch Authentication:** Tap your key to instantly verify—no passwords needed
- • **Seamless Dual-Connector Security:** Protect iOS & USB-C devices with one sleek key
- • **Universal FIDO Certified Protection:** Works flawlessly with Google Chrome & thousands of apps

## Overview

The Yubico YubiKey 5Ci is a cutting-edge hardware security key featuring dual Lightning and USB-C connectors, enabling seamless two-factor authentication across iOS and USB-C devices. FIDO certified and supporting multiple protocols including FIDO2, OTP, and Smart Card, it offers robust, passwordless protection compatible with thousands of apps and platforms. Compact and lightweight, it requires a simple physical tap to authenticate, making it the ultimate tool for professionals serious about safeguarding their digital identity.

## Description

Buy

Review: Really secure device highly recommend - The YubiKey 5 NFC is top-tier in its class: excellent security, broad compatibility, and great flexibility in connectivity. If you care seriously about protecting your accounts, it’s a very worthwhile investment. The trade-offs — cost, need for backup key(s), setup effort — are real but manageable, and in my view acceptable for the level of protection you gain.
Review: Very good IF you take the time to learn how to use them - The Yubikey is a very good very secure device but like anything in the IT security world, it takes a while to learn how to use it and set it up and of course the methods vary, depending on your device types. And buy two, you need a spare just in case you lose one. I use Windows and Android so I have the Yubico authenticator app on my phone and use that to access many of my accounts in the traditional way, by adding an authenticator app to whatever account I want to use the Yubikey to access. When the QR code is presented, with the Yubico app open on the phone and in the accounts page, I press the 3 dots top right then add account, scan the QR code and save the account by re-scanning the Yubikey. I DONT input the presented code to the account yet though, I REPEAT the process for my spare YubiKey's first then when I do the last key and the account is added to all the keys, then I complete the process by adding the one time passcode as requested. Easy! On my PC I plug the key into my USB port and input the pin that I setup using the Yubico authenticator app from Windows store, this way I have to physically touch the copper contact on the key to log into whatever account I have setup using FIDO in this case versus NFC that the phone uses. There are plenty of videos on YouTube showing how to set these keys up, it just takes a day or so to get your head around it if you are new to passkeys, but what's a day or so of learning for the extra security these keys give you? Lastly, some of the reviews are concerned about vulnerabilities in the older firmware but the two keys I purchased have firmware 5.7.1 which is the latest firmware. As for one reviewers post about a criminal running a program on your device, that assumes they have stolen the device AND KEY, can get past the device sign in security and also know the pin number for the key too which you should set for NFC and FIDO. If somebody has your phone, can access it, has your key and knows the pin to it, has your accounts and knows the usernames and passwords, vulnerabilities are already a moot point. These are very good devices adding a level of security that is just not possible with other 2FA methods.

## Features

- NEW PRODUCT with EMERGING SUPPORT - It is highly recommended to visit Yubico's website for understanding of the full capabilities of this security key before purchase.
- DUAL CONNECTORS: The Yubico YubiKey 5Ci is the first multi-protocol hardware authenticator with dual connectors for Lighting and USB-C ports. With the lighting connector side, you can protect your iOS mobile apps and log in with just a tap.
- COMPATIBILITY: The Yubico 5Ci features the YubiKey 5C functionality on one side that works with thousands of apps to keep accounts secure. The Lightning Connector side is leading the way in innovation and is currently compatible with a limited number of applications.
- FIDO: The YubiKey 5Ci is FIDO certified and works with Google Chrome and any FIDO-compliant application on iOS, Windows, Mac OS or Linux. Secure your login and protect your Gmail, Facebook, Dropbox, Outlook, LastPass, Dashlane, 1Password, accounts & more.
- MULTI-PROTOCOL SUPPORT: This YubiKey has multi-protocol support including FIDO2, FIDO U2F, Yubico OTP, OATH-TOTP, OATH-HOTP, Smart card (PIV), OpenPGP, and Challenge-Response capability to give you strong hardware-based authentication.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07WGJ1DNJ |
| Best Sellers Rank | 849 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 1 in USB Gadgets |
| Flash memory type | NAND |
| Global Trade Identification Number | 05060408461969 |
| Guaranteed software updates until | unknown |
| Hardware Connectivity Technology | Lightning, USB Type C |
| Item model number | Y-291 |
| Manufacturer | Yubico |
| Model name | Y-291 |
| Product Dimensions | 4.03 x 1.2 x 0.5 cm; 3 g |

## Product Details

- **Brand:** Yubico
- **Colour:** Black
- **Connectivity technology:** USB
- **Hardware interface:** USB
- **Special feature:** dual connectors for Lighting and USB-C ports

## Images

![YubiKey 5Ci - Image 1](https://m.media-amazon.com/images/I/41IHPTWci8L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Does this work as a two-factor authentication method for signing into outlook.com? If so, which browsers are supported?**
A: Sure does.  In fact with Edge you can setup password-less logon to outlook.com.  with chrome and Firefox you can just use it as a second factor after the username and password.

**Q: Does this have any kind of backup in case you lose it like some software based 2FA does? Or is it game over if it goes wandering?**
A: You use this device as a 2 factor authorization which works with  3rd party software which you purchase separately .It has no software itself. It simply contains a chip which generates a Code which your software recognizes and as it needs to be Physically pressed by a human being it is not possible for hackers to program software to activate it.
If you lose it you simply deactivate your device in you software of choice. For example you could  use it with a password manager software which you purchase  separately. To login into a software you use a password , that is the 1st factor of Authorization, then you insert your Key and press the button , that is the second factor.So if someone gets hold of your password they still can't login in without your stick. It's almost Bullet proof if you ask me.
If you lose your Yubikey and wished to deactivate the Yubikey you would do  so via a mobile phone which you used to setup your software in the first place. For example you would receive an SMS or Email depending on the Software producer.

**Q: Are these keys available to buy in England, they all seem to come from the US or EU with very long delivery times in many cases and no warranty.**
A: I bought my first two keys from Yubico UK through Amazon last year but don’t know why they don’t appear here anymore. I bought my third key on Amazon which I think was through Amazon EU. It didn’t take that long to arrive, maybe a week or less. The only other option I can see is if you click on ‘see other sellers’ section and there are UK sellers listed but could be more expensive. Hope this helps.

**Q: Can this be used in a normal usb-a port with an adaptor?**
A: Thanks for your interest. Yes, it can be used with the correct adaptor, but we also offer USB-A keys (Yubikey 5 NFC) which may work better for your needs? https://www.amazon.co.uk/dp/B07HBD71HL?ref=myi_title_dp

## Customer Reviews

### ⭐⭐⭐⭐⭐ Really secure device highly recommend
*by A***Y on 5 November 2025*

The YubiKey 5 NFC is top-tier in its class: excellent security, broad compatibility, and great flexibility in connectivity. If you care seriously about protecting your accounts, it’s a very worthwhile investment. The trade-offs — cost, need for backup key(s), setup effort — are real but manageable, and in my view acceptable for the level of protection you gain.

### ⭐⭐⭐⭐⭐ Very good IF you take the time to learn how to use them
*by M***R on 5 February 2025*

The Yubikey is a very good very secure device but like anything in the IT security world, it takes a while to learn how to use it and set it up and of course the methods vary, depending on your device types. And buy two, you need a spare just in case you lose one. I use Windows and Android so I have the Yubico authenticator app on my phone and use that to access many of my accounts in the traditional way, by adding an authenticator app to whatever account I want to use the Yubikey to access. When the QR code is presented, with the Yubico app open on the phone and in the accounts page, I press the 3 dots top right then add account, scan the QR code and save the account by re-scanning the Yubikey. I DONT input the presented code to the account yet though, I REPEAT the process for my spare YubiKey's first then when I do the last key and the account is added to all the keys, then I complete the process by adding the one time passcode as requested. Easy! On my PC I plug the key into my USB port and input the pin that I setup using the Yubico authenticator app from Windows store, this way I have to physically touch the copper contact on the key to log into whatever account I have setup using FIDO in this case versus NFC that the phone uses. There are plenty of videos on YouTube showing how to set these keys up, it just takes a day or so to get your head around it if you are new to passkeys, but what's a day or so of learning for the extra security these keys give you? Lastly, some of the reviews are concerned about vulnerabilities in the older firmware but the two keys I purchased have firmware 5.7.1 which is the latest firmware. As for one reviewers post about a criminal running a program on your device, that assumes they have stolen the device AND KEY, can get past the device sign in security and also know the pin number for the key too which you should set for NFC and FIDO. If somebody has your phone, can access it, has your key and knows the pin to it, has your accounts and knows the usernames and passwords, vulnerabilities are already a moot point. These are very good devices adding a level of security that is just not possible with other 2FA methods.

### ⭐⭐⭐⭐⭐ Works okay, NFC feature hit-and-miss.
*by R***L on 4 January 2022*

Works great for USB. I use it for Windows logon and for Yubico Authenticator app for sites that have OTP codes. It's also supported by Lastpass and Google. Of course, you'll probably want to get two of these as a backup in case you lose one. I have one permanently at home and the other on my keyring for mobile/laptop use when out and about. The one slight drawback as by design, many sites that support 2FA, only allow you to register one code. Ideally, you would register separately for each Yubikey, rather than having to set up the same on both Yubikeys at the same time, this way, if a Yubikey is lost, you can revoke the 2FA only for the lost key. One small drawback is you'll need both Yubikeys to hand every time you set up or remove a 2FA, to update both, as may sites/apps don't let you see the QR code again once it's been set up. This is perhaps offset by the useful ability to plug the Yubikey into any device, securely use your 2FA/auth, and then unplug it, rather than having to set it all up again for every device. It takes a bit of time to set up and get used to, but you'll be in a much more secure once it's done. The NFC feature never worked on my Huawei/Honor Play phone, despite all sorts of fiddling around with the NFC settings, so I had to use an adapter to USBC to use the YubiKey with this phone, but I just upgraded to a Google Pixel 6 and it works pretty well once you get the technique of how to hold it behind the phone. (doesn't need to physically make contact, just hold quite close to the back) I haven't got SSH/PGP working with it yet as this seems quite complicated to do on Windows and the documentation is somewhat lacking in this area.

## Frequently Bought Together

- Yubico - YubiKey 5Ci - Two-Factor authentication Security Key for Android/PC/iPhone, Dual connectors for Lighting/USB-C - FIDO Certified
- Yubico - YubiKey 5C NFC - Two-Factor authentication (2FA) Security Key, Connect via USB-C or NFC, FIDO Certified - Protect Your Online Accounts
- Yubico - YubiKey 5C Nano - Multi-Factor authentication (MFA) Security Key and passkey, Connect via USB-C, Compact Size, FIDO Certified - Protect Online Accounts

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---

*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-03-04*