100 Pcs NFC Tags Keytags Keychain Business Cards - Pack of 100

In this review the reviewer looks at a pack of 100 NFC keytags aimed at small businesses, makers, and anyone who needs many programmable tags for access, sharing, or labeling. The bottom line: this kit is worth considering for users who want a large, durable supply of programmable NFC keychains with moderate memory and password options; the main reason to buy is the abundance of tags combined with a compact, heat-resistant ABS design that makes them practical for everyday carry and repeated programming.

Key Features

• Abundant Package: The pack contains 100 black NFC keytags so there is ample supply for events, staff badges, product tagging, or repeated testing without running out.
• 504 Bytes Memory: Each tag has 504 bytes of NFC chip memory, enough for contact links, WiFi credentials, or short payloads and supports read/write and lock options for flexible use.
• Password Protection: Built-in password protection and lock functions let users secure data or make tags read-only after programming for basic data safety.
• Durable Material: Molded from ABS plastic that resists heat up to 190F and is non-toxic and wear-resistant, the tags hold up to everyday handling on keyrings and backpacks.
• Portable Design: Each keytag includes a keyring and a compact form factor so tags attach easily to keys or gear and take up minimal space.
• Wide Compatibility: Compatible with NFC-enabled phones and devices, the tags can share social links, music, WiFi details, or trigger smart home actions.

Who It's For

This pack is best for small businesses, event organizers, or hobbyists who need a large quantity of identical, programmable NFC keytags for access control, promotions, or rapid deployment. It also suits makers and developers who test NFC flows and want consistent, low-cost tags to experiment with read/write and lock functions.

Those looking for tags with very large storage, built-in batteries, or industrial ruggedization should look elsewhere; these are ABS keytags designed for everyday consumer use rather than heavy-duty outdoor or high-security installations.

Pros & Cons

Pros

• Large 100-piece package provides strong value for bulk use or testing.
• 504 bytes of memory with read/write and lock features covers common NFC tasks like URL, WiFi, and contact sharing.
• ABS construction withstands heat to 190F and resists wear for long-term everyday use.
• Includes keyrings and compact size for convenient attachment and portability.

Cons

• 504 bytes is moderate capacity and may be limiting for large data payloads or advanced applications.
• Not described as industrial-grade waterproof or impact-proof for very harsh environments.

Specifications

Package Quantity	100 pieces
Color	Black
Material	ABS plastic
NFC Memory	504 bytes
Temperature Resistance	Up to 190F
Compatibility	NFC-enabled mobile phones and devices
Included Accessory	Keyring

Our Verdict

For anyone who needs a cost-effective bulk supply of programmable NFC keytags, this 100-pack delivers reliable value: the tags are durable, portable, and flexible enough for social sharing, WiFi setup, or simple access uses. Buyers who need large storage or ruggedized tags should consider alternatives, but for general business, events, and maker projects this set is a practical choice.

Frequently Asked Questions

Can these tags be rewritten?
Yes, the tags support read/write operations and can be edited repeatedly unless you set them to read-only using the lock function.

Are these compatible with my phone?
They are compatible with NFC-enabled mobile phones and devices that read standard NFC tags.

Do the tags include keyrings?
Yes, each keytag includes a keyring for easy attachment to keys, backpacks, or lanyards.