---
product_id: 222284257
title: "10pcs Writable Programmable SIM Card 4G LTE WCDMA GSM Nano Micro 2FF 3FF 4FF Blank USIM Card for Telecom Operator(10pcs)"
brand: "gialer"
price: "171 Lei"
currency: RON
in_stock: true
reviews_count: 8
category: "Gialer"
url: https://www.desertcart.ro/products/222284257-10pcs-writable-programmable-sim-card-4g-lte-wcdma-gsm-nano
store_origin: RO
region: Romania
---

# 4G LTE + WCDMA + GSM compatible 3-in-1 size: Nano, Micro & Standard SIM Fully writable & programmable SIMs 10pcs Writable Programmable SIM Card 4G LTE WCDMA GSM Nano Micro 2FF 3FF 4FF Blank USIM Card for Telecom Operator(10pcs)

**Brand:** gialer
**Price:** 171 Lei
**Availability:** ✅ In Stock

## Summary

> 📡 Unlock the power of programmable SIMs—engineer your network, own the connection!

## Quick Answers

- **What is this?** 10pcs Writable Programmable SIM Card 4G LTE WCDMA GSM Nano Micro 2FF 3FF 4FF Blank USIM Card for Telecom Operator(10pcs) by gialer
- **How much does it cost?** 171 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/222284257-10pcs-writable-programmable-sim-card-4g-lte-wcdma-gsm-nano)

## Best For

- gialer enthusiasts

## Why This Product

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

## Key Features

- • **Triple-Size Design:** Nano, Micro, and Standard SIM formats in one card set—perfect fit for any device.
- • **Bulk Pack Advantage:** 10-pack bundle designed for telecom operators and network developers—scale your projects effortlessly.
- • **Custom Programmability:** Blank SIMs ready for professional engineers to program with your unique network credentials.
- • **Exclusive Software Support:** Compatible with GRSIMWrite for precise SIM customization on Windows and macOS.
- • **Universal Network Compatibility:** Seamlessly supports 4G LTE, WCDMA, and GSM for global telecom flexibility.

## Overview

This 10-pack of writable, programmable SIM cards supports 4G LTE, WCDMA, and GSM networks in Nano, Micro, and Standard sizes. Designed exclusively for telecom operators and professional engineers, these blank USIM cards require specialized software (GRSIMWrite) for programming unique network credentials, enabling custom network deployments and testing.

## Description

desertcart.com: Gialer 10pcs Writable Programmable SIM Card 4G LTE WCDMA GSM Nano Micro 2FF 3FF 4FF Blank USIM Card for Telecom Operator(10pcs) : Everything Else

Review: As described. Used in a Open5Gs core (with an LTE small cell) - Item as described: ten of the cards, all working with the software GRSIMWrite it is meant to be paired with. Used to connect handsets to a small cell CBRS network.
Review: Programmable SIM/USIM for Osmocom, but doesn't work with pySIM - It's a programmable SIM card, comes with (common) ADM key, suitable for connecting to test networks that you manage yourself. Good example is SDR based osmocom or srslte. It comes completely empty, so you will need to generate and program id, keys and other values. Only way to program it is by using it's own application "GRSIMWrite" for windows/macos. It's not supported by pySIM tools. This is to be expected, as sim card programming is not a standard. It would be nice if vendor would add support of this card type to pySIM.

## Features

- Pls kindly Note: The card prodvide professional engineer , if you don't know about sim card, pls don't buy it!
- Blank LTE USIM Card,Size: Standard SIM Card,Micro SIM Card and Nano SIM Card, 2FF/3FF/4FF 3 in 1
- Compatible: 4G FDD LTE WCDMA GSM,Application: For Telecommunications Operator ONLY
- Newest version LTE card write software(Download)
- Include 10pcs of programmable LTE card

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08BXBNCY3 |
| Best Sellers Rank | #42,666 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #168 in Cell Phone SIM Cards |
| Brand | Gialer |
| Cellular Technology | LTE |
| Customer Reviews | 4.2 out of 5 stars 34 Reviews |
| Manufacturer | Smacarte |
| Number of Items | 10 |
| Service Provider | Global |

## Product Details

- **Brand:** Gialer
- **Cellular Technology:** LTE
- **Number of Items:** 10
- **Service Provider:** Global

## Images

![10pcs Writable Programmable SIM Card 4G LTE WCDMA GSM Nano Micro 2FF 3FF 4FF Blank USIM Card for Telecom Operator(10pcs) - Image 1](https://m.media-amazon.com/images/I/41ENnzzTNNL.jpg)

## Available Options

This product comes in different **Model** options.

## Questions & Answers

**Q: what's the material of the card?**
A: The material is PVC. All the material have the CE and RoHS certification.

**Q: Are the cards reusable/rewritable?**
A: Thanks for your queation, Yes , this cards is reusable and rewritable. you can use a PCSC reader to program this card with our software or buy a program kit from our shop:http://www.amazon.com/dp/B08BXVSKRG?ref=myi_title_dp

**Q: What voltage do these sim cards run on? 1.8v, 3v, 5v?**
A: Dear, our cards support all three voltages.

**Q: Do you provide adm key or program software?**
A: The programmable LTE card default ADM KEY is  3838383838383838, and we also give you the program software download link , you can download then use our software to program the LTE card .

## Customer Reviews

### ⭐⭐⭐⭐⭐ As described. Used in a Open5Gs core (with an LTE small cell)
*by S***Y on January 29, 2026*

Item as described: ten of the cards, all working with the software GRSIMWrite it is meant to be paired with. Used to connect handsets to a small cell CBRS network.

### ⭐⭐⭐⭐⭐ Programmable SIM/USIM for Osmocom, but doesn't work with pySIM
*by V***V on November 17, 2022*

It's a programmable SIM card, comes with (common) ADM key, suitable for connecting to test networks that you manage yourself. Good example is SDR based osmocom or srslte. It comes completely empty, so you will need to generate and program id, keys and other values. Only way to program it is by using it's own application "GRSIMWrite" for windows/macos. It's not supported by pySIM tools. This is to be expected, as sim card programming is not a standard. It would be nice if vendor would add support of this card type to pySIM.

### ⭐⭐⭐⭐ Good Value
*by J***J on March 13, 2021*

Good value

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-03-07*