HKCARD ELECTRONICS CO., LIMITED is a leading global supplier specializing in blank programmable SIM cards, 4G LTE USIM cards, and writable VoLTE ISIM cards. With over 15 years of industry experience, we serve telecom operators, mobile phone testing laboratories, IoT developers, and research institutions worldwide.
What We Offer: Complete Blank SIM Card Solutions
At HKCARD ELECTRONICS, we provide comprehensive solutions for all your mobile phone SIM card requirements. Our product portfolio includes:
Blank Programmable USIM Cards
| Product | Specifications | Applications |
|---|---|---|
| 4G LTE USIM Cards | 128K memory, programmable ICCID/IMSI/KI/OPC | Telecom testing, network development |
| VoLTE ISIM Cards | FDD/WCDMA/GSM compatible | Voice over LTE testing |
| Writable Nano/Micro SIM | 2FF, 3FF, 4FF sizes | Mobile phone testing |
| 3-in-1 Multi-size Cards | Mini, Micro, Nano adaptable | Universal compatibility |
Featured Products
1. Writable Programmable Blank Nano Micro SIM USIM Card 4G LTE
Our bestselling writable programmable blank SIM USIM card supports:
- 4G LTE networks with full WCDMA and GSM backward compatibility
- Multiple form factors: Nano (4FF), Micro (3FF), Mini (2FF)
- 128K memory capacity for complete parameter programming
- ICCID, IMSI, ADM, KI, OPC, OP fully customizable
Available packages: 5pcs, 10pcs, 100pcs/lot for wholesale orders
2. Blank 4G VoLTE ISIM USIM Card
Perfect for Voice over LTE testing and telecom operator development:
- Full VoLTE support with IMS configuration
- Compatible with FDD-LTE and TDD-LTE networks
- Factory supply with quality assurance
- Programmable using standard smart card readers
3. Phone SIM USIM Read-Write Card Testing Mobile Solutions
Designed specifically for mobile phone testing laboratories:
- Intelligent writable technology for rapid programming
- Wireless 4G compatibility across all major networks
- Complete testing mobile phone SIM blank card solutions
- Supports latest LTE Advanced specifications
Why Choose HKCARD ELECTRONICS?
✅ 15+ Years Industry Experience
We’ve been serving the mobile phone SIM cards industry since 2009, building deep expertise in blank programmable card technology.
✅ Factory Direct Pricing
As a direct manufacturer, we offer competitive wholesale pricing without intermediary markups.
✅ Complete Product Range
From blank SIM USIM 4G LTE WCDMA GSM cards to smart card readers like the HID OMNIKEY 3121, we provide everything you need.
✅ Quality Guaranteed
Every writable blank 4G VoLTE ISIM/USIM card undergoes rigorous testing before shipment.
✅ Global Shipping
Fast worldwide delivery with proper packaging and documentation.
Complete SIM Card Programming Kits
We offer comprehensive programming solutions including:
4G LTE SIM Card Reader Writer Programmer Kit includes:
- 5PCS 128K 4G VoLTE Blank ISIM Cards
- Compatible Smart Card Reader (HID OMNIKEY 3121 available)
- 2G/3G/4G/5G SIM Card Software (Version 4.1.5)
- Complete programming documentation
Card Reader Options:
- HID OMNIKEY 3121 Contact Smart Card Reader
- USB 2.0 Desktop Card Reader
- RoHS WEEE Certified
- Two-tone Gray design (R31210320-01)
Technical Specifications
Supported Parameters for Programming:
| Parameter | Description |
|---|---|
| ICCID | Integrated Circuit Card Identifier |
| IMSI | International Mobile Subscriber Identity |
| KI | Authentication Key |
| OPC/OP | Operator Authentication Parameters |
| ADM | Administrative Key |
| Milenage | 3GPP Authentication Algorithm |
Network Compatibility:
- ✅ 4G LTE (FDD & TDD)
- ✅ VoLTE/VoWiFi
- ✅ WCDMA/3G
- ✅ GSM/2G
- ✅ 5G NSA (with compatible cards)
Application Scenarios
📱 Mobile Phone Testing
Use our blank programmable SIM cards for quality assurance testing of mobile devices before market release.
📡 Telecom Operator Development
4G LTE USIM cards enable network engineers to test new services and configurations.
🔬 Research & Education
Universities and research institutions use our writable USIM cards for telecommunications studies.
🌐 IoT Development
Program custom M2M SIM cards for IoT device testing and development.
🔧 Service Centers
Mobile repair shops use testing SIM cards for device diagnostics.
Frequently Asked Questions
What is a blank programmable USIM card?
A blank programmable USIM card is an unprogrammed Universal Subscriber Identity Module that can be written with custom network parameters including ICCID, IMSI, and authentication keys for testing purposes.
What sizes do your SIM cards come in?
We supply all standard sizes:
- 2FF (Mini SIM) – 25mm x 15mm
- 3FF (Micro SIM) – 15mm x 12mm
- 4FF (Nano SIM) – 12.3mm x 8.8mm
- 3-in-1 combo cards with breakout adapters
Can these cards be used on live networks?
Our blank programmable SIM cards are designed for testing, development, and educational purposes. Usage on live commercial networks requires proper authorization from network operators.
What software is needed to program the cards?
We provide compatible software (Version 4.1.5) that supports 2G/3G/4G/5G programming. Cards work with standard PC/SC compatible smart card readers.
Do you offer wholesale pricing?
Yes! We offer factory direct wholesale pricing for bulk orders. Available packages include 5pcs, 10pcs, and 100pcs/lot with significant volume discounts.
What is the memory capacity?
Our standard cards feature 128K memory, sufficient for all standard USIM applications including VoLTE and IMS configurations.
How to Order
Step 1: Browse our product catalog
Step 2: Select your required specifications and quantity
Step 3: Contact our sales team for quotation
Step 4: Confirm order and payment
Step 5: Receive fast global shipping
Contact HKCARD ELECTRONICS Today
Ready to source high-quality blank programmable 4G LTE USIM SIM cards? Our experienced team is ready to assist you.
HKCARD ELECTRONICS CO., LIMITED
📧 Email:byronhan@cardmfg.com
🌐 Website: https://www.cardmfg.com/
📱 WhatsApp/Wechat: +8615817372512
💼 LinkedIn: HKCARD Electronics
Trusted by telecom professionals worldwide for over 15 years
Wholesale Blank 4G LTE USIM Cards Factory Direct | Programmable SIM Card Supplier HKCARD
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HKCARD ELECTRONICS CO., LIMITED
📧 Email:byronhan@cardmfg.com
🌐 Website: https://www.cardmfg.com/
📱 WhatsApp/Wechat: +8615817372512
💼 LinkedIn: HKCARD Electronics
