This usb-c key says it has nfc. does this mean it can be used to authenticate a device wirelessly, or does it still have to be plugged in?

This Security Key (Feitian ePass K40) absolutely DOES work via NFC. I can confirm this as I have used it with NFC on my phone many of times as it is very convenient & very easy to do. It's slightly faster than plugging it in via USB as well, but either way works fine. I personally prefer using it with NFC. I am not sure where Sgt. Scott got his answer from, but maybe his phones NFC isn't working because as I said before, this Security Key most certainly does work with NFC. I can add a video to my answer showing me doing so if you would like a visual confirmation, but I assure you, it does work. It specifically states it in the item title as well as in the item description. NFC is one of the main reasons I chose this particular security key. I personally have 3, this one, which is the (ePass k40), I also have the (ePass K9), & the (ePass K40 Plus) which is the same as this one but also has PIV functions. All 3 of them have NFC capabilities & all 3 work flawlessly via USB & NFC.

Does it work with bank of america?

Of course, I use this at Bank of America.

Does it work in password Managers like Keepass?

For me, this doesn't work at all with almost no helpful documentation.

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K40 USB Security Key - Two Factor Authenticator - USB-C with NFC, FIDO2 - Help Prevent Account Takeovers

Product ID: 212346502

Details

Brand
FeiTian
Hardware Interface
USB
Memory Storage Capacity
985 GB
Special Feature
Water (IP67)
Write Speed
12 megabytes

💧IP67 water-resistant durability

🔌USB-C + NFC dual connectivity

🔐FIDO2 + U2F certified security

Description

🔐 Lock in your digital fortress—because your accounts deserve elite protection.

LIGHTWEIGHT POWERHOUSE - Sleek, ultra-compact design weighing just 7.2g fits perfectly in your tech arsenal without bulk.
UNMATCHED SECURITY SHIELD - FIDO2 & U2F certification locks down your digital life with next-gen two-factor authentication.
UNIVERSAL ACCOUNT DEFENDER - Protects your access to Google, Microsoft, Facebook, Coinbase, and 100+ major platforms effortlessly.
BUILT TO BRAVE THE ELEMENTS - IP67-rated water resistance means your key stays secure rain or shine, day after day.
SEAMLESS CROSS DEVICE COMPATIBILITY - Works flawlessly with laptops, tablets, and mobiles via USB-C or NFC—no drivers needed.

The Feitian K40 USB Security Key is a cutting-edge two-factor authentication device featuring FIDO2 and U2F certifications. It offers dual connectivity via USB-C and NFC, ensuring broad compatibility across Android, iOS, Windows, MacOS, Linux, and Chrome OS without requiring drivers. Designed for durability with an IP67 water-resistant rating, it safeguards your accounts from phishing and unauthorized access on over 100 popular platforms including Google, Microsoft, Facebook, and Coinbase. Compact and lightweight, the K40 is the ultimate security upgrade for professionals demanding seamless, reliable protection.

Specifications

ASIN	B089ZYVCV6
Additional Features	Water Resistant (IP67)
Best Sellers Rank	#1,486 in USB Flash Drives
Brand	FeiTian
Color	Black with silver
Compatible Devices	Laptop, Mobile, Tablet
Compatible Phone Models	All with NFC, Android, Apple and more
Connectivity Technology	USB
Customer Reviews	4.2 4.2 out of 5 stars (158)
Flash Memory Type	USB
Hardware Connectivity Technology	USB Type C
Hardware Interface	USB
Item Dimensions D x W x H	2"D x 0.75"W x 0.13"H
Item Weight	7.2 g
Manufacturer	Feitian Technologies Co., Ltd.
Memory Storage Capacity	985 GB
Mfr Part Number	ePass K40
Model Name	ePass K40
Model Number	ePass K40
Number of Items	1
Number of Packs	1
Warranty Description	1 year warranty from the date of purchase
Write Speed	12 megabytes per second or less

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