---
product_id: 39603375
title: "YARONGTECH 4K RFID S70 Smart Card Chip 13.56MHZ IC Hotel Key Card (Pack of 10)"
brand: "yarongtech"
price: "KD 6.27"
currency: KWD
in_stock: true
reviews_count: 10
category: "Yarongtech"
url: https://www.desertcart.com.kw/products/39603375-yarongtech-4k-rfid-s70-smart-card-chip-13-56mhz-ic
store_origin: KW
region: Kuwait
---

# Unique, factory-set 4 Byte UID 4K (1K bytes) read/write memory 13.56MHz wireless frequency YARONGTECH 4K RFID S70 Smart Card Chip 13.56MHZ IC Hotel Key Card (Pack of 10)

**Brand:** yarongtech
**Price:** KD 6.27
**Availability:** ✅ In Stock

## Summary

> 🔐 Unlock the future of smart access with YARONGTECH’s 4K RFID cards!

## Quick Answers

- **What is this?** YARONGTECH 4K RFID S70 Smart Card Chip 13.56MHZ IC Hotel Key Card (Pack of 10) by yarongtech
- **How much does it cost?** KD 6.27 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/39603375-yarongtech-4k-rfid-s70-smart-card-chip-13-56mhz-ic)

## Best For

- yarongtech enthusiasts

## Why This Product

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

## Key Features

- • **Bulk Value Pack:** Set of 10 individually packed cards, perfect for scaling your smart access system without breaking the bank.
- • **Robust Security:** Immutable 4 Byte UID guarantees tamper-proof identification, keeping your premises secure.
- • **Sleek & Customizable:** Credit card-sized, blank white PVC cards ready for sublimation printing—brand your access with style.
- • **Plug & Play Convenience:** No batteries required—instant activation out of the pack for hassle-free deployment.
- • **Seamless Access Control:** ISO14443A standard ensures universal RFID compatibility for smooth hotel or office entry.

## Overview

YARONGTECH 4K RFID S70 Smart Card Pack offers 10 durable, credit card-sized access cards operating at 13.56MHz with 1K bytes of rewritable memory and a unique, factory-set 4 Byte UID. Designed to meet ISO14443A standards, these blank white PVC cards support sublimation printing and require no batteries, making them ideal for secure, scalable hotel or office key card systems.

## Description

1.MIFARE Classic 4K chip 2.13.56MHZ. 3.Credit card size. 4.PVC material. 5.Blank white card,printable by sublimation printer,but can't support inkjet printer. MIFARE and MIFARE Classic are trademarks of NXP B.V.

Review: Good value. - I bought the wrong ones by mistake. I meant to buy the ones tk make amiibos. Still, they're well made and I'm planning to find a new use for them. Great value!
Review: Works as advertised - Works great Well packaged and shipped fast. Definitely would recommend

## Features

- RFID 4K Card operates at 13.56MHz wireless frequency,according to the ISO14443A standard,and contains 1K bytes of read/write memory,but UID can’t change,uid is not rewritable
- All cards are pre-programmed with a unique ID(4 Byte UID). The UID is NOT changeable, factory default key: FF FF FF FF FF FF
- They are credit card size,each card individually OPP bag packed. Blank white both sides(no printed numbers, no magnetic strips and no slots or holes)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01LYBKM0U |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #142,480 in Office Products ( See Top 100 in Office Products ) #298 in Identification Badges #706 in Home Security Systems |
| Color | White |
| Customer Reviews | 3.9 3.9 out of 5 stars (50) |
| Date First Available | November 3, 2015 |
| Included Components | Bag |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 2.08 ounces |
| Item model number | MIFARE Classic® 4K wristbands |
| Manufacturer | YARONG |
| Number Of Pieces | 10 |
| Part Number | MIFARE Classic® 4K wristbands |
| Pattern | Letter Print |
| Product Dimensions | 3.37 x 2.13 x 0.01 inches |
| Style | Classic |

## Product Details

- **Brand:** YARONGTECH
- **Cellular Technology:** GSM
- **Product Dimensions:** 3.37"L x 2.13"W
- **Service Provider:** KABA, SAFLOK, MIWA, ONITY
- **UPC:** 725350790301 725350789701

## Images

![YARONGTECH 4K RFID S70 Smart Card Chip 13.56MHZ IC Hotel Key Card (Pack of 10) - Image 1](https://m.media-amazon.com/images/I/31Eic4vmt2L.jpg)
![YARONGTECH 4K RFID S70 Smart Card Chip 13.56MHZ IC Hotel Key Card (Pack of 10) - Image 2](https://m.media-amazon.com/images/I/4160TK6udCL.jpg)
![YARONGTECH 4K RFID S70 Smart Card Chip 13.56MHZ IC Hotel Key Card (Pack of 10) - Image 3](https://m.media-amazon.com/images/I/81VM4IdHHoL.jpg)

## Questions & Answers

**Q: What’s difference between mi fare 1k and 4K ? Can i use it to read & write as 1k card ?**
A: the difference is memory.
if you use mifare 1k cards,you can buy our MIFARE 1K Cards,it's cheaper.
but please note the UID can't change.

**Q: are these suitable as ving-compatible master cards?**
A: No it’s not

**Q: Can these be written to as nfc cards?**
A: sorry,no.
if you want to compatible with all nfc phone,please choose our ntag215 cards:
https://www.amazon.com/dp/B07LFDQBFC

**Q: can it be read by NFC smartphone?**
A: can read by some phone.but can't support all phone.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good value.
*by S***R on July 25, 2020*

I bought the wrong ones by mistake. I meant to buy the ones tk make amiibos. Still, they're well made and I'm planning to find a new use for them. Great value!

### ⭐⭐⭐⭐⭐ Works as advertised
*by A***R on March 18, 2022*

Works great Well packaged and shipped fast. Definitely would recommend

### ⭐ Waste of money
*by R***. on April 8, 2022*

All 10 of the cards are not writeable. The magic byte is completely inaccessible and a few of the cards are unreadable, even with a high-powered antenna.

## Frequently Bought Together

- YARONGTECH MIFARE Classic® 4K RFID Smart Card NFC Chip 13.56MHZ IC Hotel Key Card (Pack of 10)
- YARONGTECH MIFARE Classic 1K RFID Smart Cards 13.56MHz ISO 14443A White Door Entry Hotel Key Cards Zebra Printable (White 10 Pack)

---

## 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.com.kw/products/39603375-yarongtech-4k-rfid-s70-smart-card-chip-13-56mhz-ic](https://www.desertcart.com.kw/products/39603375-yarongtech-4k-rfid-s70-smart-card-chip-13-56mhz-ic)

---

*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-01-24*