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 - ACR122U smart card reader White USB 2.0 (ACR122 NFC USB - PC/SC NFC Contactless, Buzzer - 13.56MHz contactless technology, ISO 14443 A/B, NFC & FeliCa - Warranty: 1Y)

ACS ACR122U - ACR122U smart card reader White USB 2.0 (ACR122 NFC USB - PC/SC NFC Contactless, Buzzer - 13.56MHz contactless technology, ISO 14443 A/B, NFC & FeliCa - Warranty: 1Y)

Product ID: 160108452

Details

Brand
ACS
Media type
Memory Stick
Connectivity technology
USB
Colour
white
Compatible devices
Personal

📶13.56 MHz NFC frequency

🔌USB 2.0 fast connectivity

🛡️ISO 14443 A/B & ISO18092 compliant

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S$100

Duties & taxes included

In stock

Sold byAmazon SINGAPOREDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

📡 Unlock the power of contactless tech—stay ahead in the NFC game!

PLUG PLAY USB 2 0 - Instant connectivity with any PC via USB 2.0—no hassle, just productivity.
DEVELOPER FRIENDLY SDK - Includes free SDK and NFC tool software to accelerate your custom app development.
BONUS NFC TAGS INCLUDED - Comes with 5 NTAG213 and 2 UID MF1 sample cards to get you started immediately.
SEAMLESS NFC INTEGRATION - Effortlessly read/write multiple NFC tag types including MIFARE and NTAG213 for versatile applications.
COMPREHENSIVE PROTOCOL SUPPORT - Supports ISO 14443 A/B, ISO18092, and FeliCa standards ensuring broad compatibility.

The ACR122U is a professional-grade NFC smart card reader/writer featuring USB 2.0 connectivity, operating at 13.56 MHz frequency. It supports multiple NFC standards including ISO 14443 A/B, ISO18092, and FeliCa, making it compatible with a wide range of contactless cards such as MIFARE and NTAG213. The device comes with a 1-year warranty, free SDK, NFC tool software, and sample NFC tags, designed to streamline NFC application development and deployment.

Specifications

ASIN	B07KRKPWYC
Additional Features	Compact, Plug & Play
Best Sellers Rank	#165 in Computer Memory Card Readers
Brand	ACS
Color	white
Compatible Devices	Personal Computer
Connectivity Technology	['usb']
Customer Reviews	4.3 out of 5 stars 219 Reviews
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
Special Feature	Compact, Plug & Play
UPC	716253772891
Unit Count	9.0 Count

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