In power utility communications and other industrial private networks, testing is rarely “plug and play”. Engineers need a blank USIM test card they can control—so they can validate network access, authentication, device compatibility, and production-line consistency without guessing what’s inside the profile.
At HKCARD ELECTRONICS CO.,LIMITED (established in 2010), we supply LTE/5G test SIM/USIM solutions for mobile operators, wireless device makers, handset R&D teams, assembly lines, and SMT factories. Our product coverage has grown from 2G / 3G / 4G LTE / VoLTE to 5G (NSA/SA), and we continue to support projects in 5G core network testing and mobile communications.
Where these test USIM cards are used
Typical customer scenarios include:
- Power utility communications (private LTE/5G, field terminals, CPE, routers)
- LTE network testing (FDD/TDD), attach/authentication verification, stability checks
- 5G NSA/SA trials where USIM behavior and parameters must match the core network
- Device and module validation (R&D + QA)
- Production testing on assembly lines and SMT factories
- Industrial private networks such as mining communications and campus/industrial parks
Key features (engineer-focused)
- Multiple form factors: 2FF (Mini) / 3FF (Micro) / 4FF (Nano)
- 3GPP-aligned design with support for common authentication methods such as MILENAGE (project dependent)
- Multi-application support: can run USIM + GSM SIM + other applications on one card platform (configuration dependent)
- File structure optimization options: for some testing workflows, file layout can be arranged to improve device boot/attach efficiency (project dependent)
- Extended phonebook capability (optional), useful for test data storage
- Configurable interface behavior: PPS support (I/O baud rate negotiation), adjustable clock, and clock-stop low-power mode
- Wide operating voltage: 1.8V / 3V / 5V (depending on card type)
SIM/USIM personalization (custom data and file settings)
For LTE/5G test networks and closed private networks, we can personalize cards with the parameters your system requires, including:
- ICCID / IMSI / KEY (Ki) / OPC and other operator data
- Phonebook structure/capacity (optional)
- Memory options: 32K / 64K / 128K / 256K
- Custom file content and access control settings, matched to your test plan
This is especially useful in utility and industrial deployments where the network is closed and only approved devices should be allowed to attach.
Standards and references (common in project documentation)
These test cards are typically aligned with requirements such as:
- ETSI TS 102 221: UICC–Terminal interface (physical and logical characteristics)
- 3GPP TS 31.111 (USAT): USIM Application Toolkit
- Multi-application UICC platform concepts
- LTE-era data fields and modern USIM structures (depending on configuration)
Smart card products we supply
HKCARD provides a full range of telecom cards, including:
SIM, UIM, USIM, ISIM, eSIM, used in commercial network testing and industry networks such as power utility communications and mining communications.
Contact HKCARD ELECTRONICS CO.,LIMITED
If you tell us your network type (LTE or 5G NSA/SA), core network setup, device models, and what you want to test (attach/auth, VoLTE/IMS, production QA, etc.), we can recommend the right blank test USIM option and personalization plan.
HKCARD ELECTRONICS CO.,LIMITED
📧 Email: byronhan@cardmfg.com
🌐 Website: https://www.cardmfg.com/
📱 WhatsApp / WeChat: +86 158 1737 2512
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