Will it work with this rfid ring (description: "blank 125khz wood ring in-built with copyable t5577 chip, can copy the tag like tk4100/em4100/em4200"

unable to read these low frequency 125 kHz rfid tags, suggest you trying proxmark 3 for clone T5577, EM4100, EM4200

support, referring to the following apps, https://apps.apple.com/us/app/nfc-ideas/id1245536234?mt=12

Can this be used with a yubikey 5 which uses nfc?

Sorry don't know that, only know suppor Yubikey NEO c but Yubikey 5 currently seemed not be supported

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ACS ACR122U NFC Reader Writer + 5 PCS Ntag213 NFC Tag + Free Software

ACS ACR122U NFC Reader Writer + 5 PCS Ntag213 NFC Tag + Free Software

Product ID: 93496605

Details

Brand
ACS
Color
white
Connectivity Technology
['usb']
Media Type
Memory Stick
Special Feature
Compact Plug &

⚡Ultra-fast <100 ms read time

📡13.56 MHz NFC frequency

🔌USB 2.0 plug & play

₩108839

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Unlock the future of NFC with speed and style!

LIGHTNING FAST READS - Experience near-instantaneous data capture with sub-100 ms reading speeds—no more waiting around.
PLUG PLAY CONVENIENCE - Driver-free USB 2.0 interface ensures effortless setup across Windows XP to 10—just plug in and go.
COMPACT DURABLE DESIGN - Sleek white PC enclosure with a lightweight 100g frame fits perfectly on any desk or workspace.
COMPLETE NFC STARTER KIT - Includes 5 premium Ntag213 tags, 2 UID MF1 cards, plus free SDK and NFC tool software to jumpstart your projects.
SEAMLESS NFC COMPATIBILITY - Supports Mifare 1k/4k, Ultralight, Ntag213/215/216, and Desfire cards for ultimate versatility.

The ACS ACR122U is a compact, USB 2.0 NFC reader/writer operating at 13.56 MHz, compatible with a wide range of Mifare and Ntag cards. It offers ultra-fast reading times under 100 ms, supports major NFC protocols IEC14443A and ISO18092, and comes bundled with 5 Ntag213 tags, 2 UID MF1 cards, plus free SDK and NFC software—making it the perfect plug & play solution for professionals seeking reliable, versatile NFC technology.

Specifications

ASIN	B07KRKPWYC
Additional Features	Compact, Plug & Play
Best Sellers Rank	#153 in Computer Memory Card Readers
Brand	ACS
Color	white
Compatible Devices	Personal Computer
Connectivity Technology	['usb']
Customer Reviews	4.2 4.2 out of 5 stars (226)
Data Transfer Rate	12 megabits_per_second
Hardware Interface	USB 2.0
Item Dimensions L x W x H	2.56"W x 0.5"H
Manufacturer	ACS
Media Type	Memory Stick
Mfr Part Number	ACR122U
Model Name	ACR122U
Model Number	ACR122U
Operating System	Windows
Slot Count	1
UPC	716253772891
Unit Count	9 Count

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