Table of Contents
Toggle1. Product Overview
HKCARD ELECTRONICS CO.,LIMITED / HKCARD offers a programmable blank SIM card for professional use. This card works as a standard USIM / ISIM blank card. It is supplied blank so you can write your own data, or HKCARD can prepare it for you before shipping.
The card supports 4G LTE, WCDMA (3G), and GSM (2G) networks. It is compatible with smartphones, modems, LTE routers, and M2M or IoT devices.
If you need one card body that fits multiple device types, this 3-in-1 SIM is a practical choice.
2. Form Factor and Compatibility
3-in-1 Design
This SIM card comes in a 3-in-1 form factor:
- 2FF (Mini-SIM)
- 3FF (Micro-SIM)
- 4FF (Nano-SIM)
You can punch out the size you need. This reduces inventory needs and helps when your project uses different device models.
Module Options
- Single Module: One SIM chip per card.
- Dual Module: Two independent modules on one card body.
This version is useful for projects that need two separate SIM functions or profiles on a single physical card.
Color Options
- White
- Gray
- Other colors on request
3. Network Support
The card is compatible with common cellular standards:
- GSM (2G)
- WCDMA / UMTS (3G)
- LTE / 4G
This makes it suitable for:
- Legacy device support
- Mixed network environments
- Global testing
- Telecom trial projects
- Industrial communication devices
4. Writable Parameters
You can write and edit key telecom fields on this card. Supported parameters include:
- IMSI (International Mobile Subscriber Identity)
- KI (Authentication Key)
- OPC (Operator Variant Algorithm Configuration)
- ACC (Access Control Class)
- Class 15
The card is compatible with standard SIM personalization tools. If you do not want to handle writing yourself, HKCARD ELECTRONICS CO.,LIMITED / HKCARD can program the cards based on your authorized data.
5. Memory and Security
Memory Type
- EEPROM
Security Features
- Access Protection: PIN / PUK
- Authentication Algorithm Support: MILENAGE / COMP128
- This depends on firmware and project setup.
Data Protection
The card is built for long-term use and stable performance:
- Data Retention: Not less than 10 years
- Rewrite Cycles: ≥ 100,000
6. Durability and Operating Conditions
This SIM card is designed for real-world environments, not just lab benches.
- Operating Temperature Range: -25 °C to +85 °C
- Durability: Resistant to vibration, humidity, and mechanical wear
These features help the card survive in field deployments, industrial sites, and long-term IoT use.
7. Compatible Devices
This programmable blank SIM card works with a wide range of hardware:
- Smartphones
- Modems (USB dongles, embedded modules)
- LTE routers (home, enterprise, industrial)
- M2M devices (trackers, meters, vending machines)
- IoT terminals (sensors, gateways, controllers)
It is especially useful when you need:
- Flexible SIM personalization
- Stable network testing
- Operator-controlled deployment
- Multi-device compatibility
8. Why Choose HKCARD
HKCARD ELECTRONICS CO.,LIMITED / HKCARD is a professional SIM card provider. Customers usually come to HKCARD when they need:
- Blank SIM card supply
- Personalized SIM writing support
- 3-in-1 SIM format options
- Dual-module or single-module designs
- Support for LTE, WCDMA, and GSM environments
- Fast turnaround on custom or standard orders
Whether you need cards for a small lab trial or a larger production run, HKCARD can scale with your project.
9. How to Order
To get a quote or request samples, please share:
- Quantity and delivery location
- Module type: single or dual-module
- Color preference: white, gray, or other
- Blank or pre-programmed: if programmed, share your data requirements (IMSI, KI, OPC, etc.)
- Target devices and network environment (LTE, WCDMA, GSM)
This helps HKCARD recommend the right configuration and give you an accurate quote.
10. Product Summary
| Specification | Detail |
|---|---|
| Type | Programmable SIM card (ISIM / USIM) |
| Condition | Blank, for later personalized writing |
| Color | White, gray, or custom |
| Form Factor | 3-in-1 (2FF + 3FF + 4FF) |
| Cellular Standards | GSM, WCDMA / UMTS, LTE / 4G |
| Writable Fields | IMSI, KI, OPC, ACC, Class 15 |
| Memory Type | EEPROM |
| Rewrite Cycles | ≥ 100,000 |
| Operating Temp | -25 °C to +85 °C |
| Data Retention | Not less than 10 years |
| Security | PIN / PUK, MILENAGE / COMP128 |
| Compatibility | Smartphones, modems, routers, M2M, IoT |
Contact HKCARD ELECTRONICS CO.,LIMITED
For pricing, samples, or technical questions, reach out to the HKCARD team:
📧 Email: byronhan@cardmfg.com
🌐 Website: https://www.cardmfg.com/
📱 WhatsApp / WeChat: +86 158 1737 2512
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