---
product_id: 42451433
title: "50pcs EM 4100/4102 Keychains 125Khz RFID Proximity ID Card Token Tags Key Fobs"
brand: "fcard"
price: "FREE"
currency: VND
in_stock: false
url: https://www.desertcart.vn/products/42451433-50pcs-em-4100-4102-keychains-125khz-rfid-proximity-id-card
store_origin: VN
region: Vietnam
---

# 40.5x32x4.2mm 125KHz 50pcs 50pcs EM 4100/4102 Keychains 125Khz RFID Proximity ID Card Token Tags Key Fobs

**Brand:** fcard
**Price:** FREE
**Availability:** ❌ Out of Stock

## Summary

> 🔐 Unlock Your Potential with Every Tag!

## Quick Answers

- **What is this?** 50pcs EM 4100/4102 Keychains 125Khz RFID Proximity ID Card Token Tags Key Fobs by fcard
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/42451433-50pcs-em-4100-4102-keychains-125khz-rfid-proximity-id-card)

## Best For

- fcard enthusiasts

## Why This Product

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

## Key Features

- • **Compact Design:** Sleek dimensions of 40.5x32x4.2mm fit perfectly in your pocket.
- • **Quick Handling:** Ships from Chino, CA within 1 business day!
- • **Durable Material:** Crafted from robust PVC for long-lasting use.
- • **Reliable Frequency:** Operates at 125KHz for consistent performance.
- • **Unlock Convenience:** 50 high-quality RFID key fobs for seamless access.

## Overview

This set of 50 EM 4100/4102 RFID proximity key fobs is designed for efficient access control. Each fob measures 40.5x32x4.2mm and operates at a reliable 125KHz frequency, ensuring durability and convenience for everyday use. Manufactured by FCARD, these PVC tags are perfect for both personal and professional applications, with quick shipping from California.

## Description

Description    100% Brand New  Card type: EM CARD  Size:40.5*32*4.2mm  Frequency: 125KHz.  Material: PVC  Detecting distance: 3-10cm  Color: Green  50pcs/lot

## Features

- Card type: EM CARD
- Size:40.5*32*4.2mm
- Frequency: 125KHz
- Material: PVC
- Note:The item is located at Chino, California, 91710, United States and can be handled in 1 business day.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | FCARD |
| Brand | FCARD |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | EM CARD |

## Images

![50pcs EM 4100/4102 Keychains 125Khz RFID Proximity ID Card Token Tags Key Fobs - Image 1](https://m.media-amazon.com/images/I/51GdSn8i9XL.jpg)
![50pcs EM 4100/4102 Keychains 125Khz RFID Proximity ID Card Token Tags Key Fobs - Image 2](https://m.media-amazon.com/images/I/51SqftgDB7L.jpg)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.vn/products/42451433-50pcs-em-4100-4102-keychains-125khz-rfid-proximity-id-card](https://www.desertcart.vn/products/42451433-50pcs-em-4100-4102-keychains-125khz-rfid-proximity-id-card)

---

*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-21*