Multi‑Network 4G VoLTE and 5G USIM Cards for Labs and OEMs | HKCARD ELECTRONICS CO., LIMITED-Multi-Network SIM and USIM Solutions for 4G VoLTE and 5G NR

HKCARD ELECTRONICS CO., LIMITED (HKCARD) manufactures carrier-grade SIM, USIM, and eSIM products for development labs, OEMs, MVNOs, and private 4G/5G networks. Our portfolio spans multi-network 4G VoLTE SIM cards, 5G USIM and NR SIM options, programmable test SIMs, and secure modules—built to streamline device testing, certification, and deployment.

We support everything from WCDMA functional testing to 5G SA/NSA field trials, with proven workflows for Open5GS, srsRAN, and commercial cores.

Product Family at a Glance

• Multi-network access
  • Multi-network 4G VoLTE SIM card (also: multi network 4g volte sim card, multinetwork 4g volte sim card)
  • NR SIM for 5G SA/NSA; USIM 4G for LTE/IMS; NSA card variants
  • CDMA SIM card options for legacy/transition networks
• Programmable and test cards
  • Programmable SIM, programmable SIM card 5G, test SIM, test SIM card for controlled IMSI/Ki/OPc
  • KI-SIM and SJS1 customization on request
• eUICC and blanks
  • Blank eSIM (MFF2), blank white triple format SIM, blankocard, blanko sim karte, simcard trio halfcard
• Memory and special models
  • 64k simtrio for wireless fixed-line post, 128kUSIM, USIM 4G, triplesim plug 64k TMO UICC 5G
  • PSAM SIM for secure access and transaction modules
• Tools and readers
  • Omnikey 3121 reader writer; PC/SC compatible; APDU scripting support

Network Coverage and Standards

Our cards are engineered to register, authenticate, and hand over across mixed network topologies:

• Access families: NR/LTE/CDMA/EVDO/GSM/WCDMA (and nr/lte/cdma/evdo/gsm/wcdma)
• 5G SA/NSA support, VoLTE/IMS profiles, emergency call support (where applicable)
• WCDMA testing and WCDMA functional testing for legacy validation
• NB-IoT and LTE-M options for low-power deployments
• Standards: ISO/IEC 7816, ETSI TS 102 221, 3GPP TS 31.102, TS 33.401, TS 33.501

Security, Privacy, and SUCI Support

• 5G privacy: SUCI encryption profiles (including 711 SUCI) to conceal SUPI on-air
• Operator-specific trials: u mobile suci sim, umobile suci sim card profile support for interoperability testing
• Algorithms: Milenage, XOR, COMP128; EAP-AKA’ for modern core security
• Key material control: Programmable IMSI, Ki, OP/OPc, ADM keys; optional OTA/eUICC workflows

Form Factors and Packaging

• Card sizes: 2FF SIM card (Mini), 3FF SIM card (Micro), 4FF SIM card (Nano)
• Triple-format options: blank white triple format sim, simcard trio halfcard for field flexibility
• Industrial: Blank eSIM (MFF2) for SMT mounting; custom marking, ICCID ranges, laser printing, barcodes
• White-label and bulk packaging available for integrators and MVNOs

Lab Workflows and Developer Tools

• Programmable SIM and test SIM tooling that lets you set IMSI, Ki, OPc, PIN/PUK, and service tables
• Omnikey 3121 reader writer support on Windows/macOS/Linux; easy PC/SC integration
• Compatible workflows with popular developer practices and card lines: sysmoisim, sysmoisim-sja2, sysmoisim-sja5, sysmousim, sysmosim (and sysmosim duplicates for search variants)
• Script-ready APDUs for fast provisioning, QA loops, and certification benches

Use Cases

• Device bring-up and RF validation
  • Validate attach, registration, and VoLTE on multi-network 4G VoLTE SIM setups
  • Run WCDMA functional testing before LTE/NR rollout
• Private 4G/5G and enterprise campuses
  • NR SIM and programmable SIM card 5G for SA cores; NSA card for quick migration paths
• MVNO and operator trials
  • USIM 4G and 5G USIM with SUCI for identity protection flows
• Fixed wireless and IoT
  • 64k simtrio for wireless fixed-line post CPE; low-power IoT with LTE-M/NB-IoT profiles

Highlighted Models and Keywords (for quick reference)

• Multi-network 4g volte sim card; multi network 4g volte sim card; multinetwork 4g volte sim card; multinetwork 4g volte
• NR SIM; 5G USIM; programmable SIM; programmable sim card 5g; USIM 4G
• CDMA SIM card; NSA card; PSAM SIM
• Blank eSIM; blankocard; blanko sim karte; blank white triple format sim; simcard trio halfcard
• 2FF SIM card; 3FF SIM card; 4FF SIM card
• 64k simtrio for wireless fixed-line post; triplesim plug 64k TMO UICC 5G; 128kUSIM
• Omnikey 3121 reader writer
• u mobile suci sim; umobile suci sim card; 711 SUCI
• sysmoisim; sysmoisim-sja2; sysmoisim-sja5; sysmousim; sysmosim; KI-SIM; SJS1
• sim cards wholesale supplier sim card blank

Ordering, Customization, and Lead Times

• Customization
  • Pre-burned IMSI/Ki ranges; OP/OPc; PIN/PUK; ADM
  • Custom ATR; service table tuning; application files (DF/ADF) per your core requirements
  • Artwork: full white, custom CMYK, laser IDs, QR/ICCID pairing
• Volume and logistics
  • Pilot runs to high-volume batches with AQL-driven QA
  • Global shipping with ESD-safe packing and moisture barriers for MFF2
• Support
  • Direct engineering contact for APN/IMS parameters, IMSI planning, and card profile advice

Frequently Asked Questions

• What’s the difference between USIM 4G and 5G USIM?
  • USIM 4G targets LTE/IMS flows; 5G USIM adds parameters for 5G SA/NSA, SUCI handling, and enhanced security contexts.
• Can I program my own IMSI/Ki/OPc?
  • Yes. With the Omnikey 3121 reader writer (or compatible PC/SC readers) and your ADM keys, you can provision or update test profiles in-house.
• Do you support mixed legacy and modern networks?
  • Yes. Our cards operate across NR/LTE/CDMA/EVDO/GSM/WCDMA to simplify migration and lab coverage.

Why HKCARD ELECTRONICS CO., LIMITED

• Proven multi-network interoperability from lab to field
• Stable supply for OEMs/MVNOs with strict quality control
• Practical documentation, sample scripts, and responsive engineering support

Contact HKCARD ELECTRONICS CO., LIMITED

• Company: HKCARD ELECTRONICS CO., LIMITED (HKCARD)
• Email: byronhan@cardmfg.com
• Website: https://www.cardmfg.com/
• WhatsApp / WeChat: +86 158 1737 2512