HKCARD — Programmable 5G/4G USIMs | Writable IMSI/Ki/ICCID/OPc | Sysmocom‑Compatible

HKCARD ELECTRONICS supplies writable, re‑programmable SIM/USIM (IMSI/Ki/ICCID/OPc), 5G NR R16 SA & 4G LTE/WCDMA blank cards. pySim/Open5GS‑ready. Bulk, white label, MVNO.

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HKCARD ELECTRONICS: Reliable Supplier of Programmable SIM/USIM for 5G, 4G LTE & IoT

With 10+ years in the mobile phone SIM cards industry, HKCARD ELECTRONICS CO., LIMITED is a trusted manufacturer and bulk supplier of programmable SIM/USIM. We help MVNOs, labs, universities, R&D teams, private 4G/5G operators, and IoT builders ship faster with writable, re‑programmable, pySim‑compatible cards—plus white‑label options and rapid customization.

At a glance: what we supply

• Writable & re‑programmable SIM/USIM: IMSI, Ki, ICCID, OP/OPc, KEY, SPN, MNC, MCC
• 5G/4G: Programmable 5G NR 3GPP R16 SA SIM, 5G USIM, USIM/LTE (not GSM‑only), 4G LTE/WCDMA blank cards
• Tools & stacks: PC/SC + pySim, Open5GS, srsRAN compatibility
• Form factors & memory: 2FF / 3FF / 4FF (nano‑USIM), 128k / 256k / 512k
• Branding: white sim cards, white label MVNO SIM cards, custom artwork, printing, file‑system layout

Writable, re‑programmable SIM cards (not one‑time burn)

Engineers can freely program and reprogram key fields using PC/SC tools (e.g., pySim and other sim personalize tools):

• Writable IMSI SIM Cards (also supports workflows often searched as “writable imsi sim cards free” via open‑source tools)
• Writable Ki SIM Cards and Writable OP or OPc SIM Cards
• Writable ICCID SIM Cards, Writable KEY SIM Cards, Writable SPN SIM Cards
• Writable MNC SIM Cards and Writable MCC SIM Cards
  These programmable sim cards are ideal for USIM test solution environments, private networks, and MVNO provisioning.

5G & 4G product lineup

• HKCARD’s Programmable SIM Cards for 5G Networks, including Programmable 5G NR 3GPP R16 SA 5G SIM Card and 5G SA 128k SIM
• USIM / LTE SIM Cards (not GSM‑only): usim 4g, usimlte, 5g usim
• Multi network 4G VoLTE SIM card support (works with 4g volte tester tools)
• 4G GSM SIM card and 4G LTE/WCDMA blank cards for broad device testing
• SUCI SIM card options for privacy in 5G SA (note: “suci sim คือ” = SUCI explanation in Thai searches)

Form factors, memory, and variants

• Available form factors: 2FF / 3FF / 4FF SIM Cards (nano‑usim, half simcard lte trio, simcard half lte)
• Memory & performance: 128k sim / 128k usim / 128kusim, 256k sim, 512k sim
• Java Card support: java sim card / sim java applets for custom logic (sim programming, sim card creator workflows)

Blank, white‑label, and testing cards

• Blank sim cards: blank sim, sim blank, empty sim card, white sim card / white sims / white sim cards
• White label mvno sim cards and white label sim cards for brand launches; offbrand sim and bulk sim programs
• Dummy & test: sim dummy, dummy sim card, fake sim (non‑operational), dummy sim card airtel (handset demo), td sim
• eSIM labs: blank esim for evaluation (lab use)
• NFC options: nfc sim, sim card nfc, sim nfc, sim wallet nfc for the sim cards near field communication market
• Legacy/network‑specific: cdma sim card, uim card, ruim card, sa sim card (5G SA)

Compatibility with Sysmocom, pySim and Open‑Source Tools

Many customers search for or use sysmocom SIM card / sysmocom SIM cards / sysmocom SIM, including sysmoISIM‑SJA2, sysmoUSIM‑SJS1, sysmoISIM‑SJA5 (also searched as sysmoisim‑sja2, sysmousim‑sjs1, sysmoisim‑sja5, SJA2).

• HKCARD offers form‑, function‑ and file‑system‑compatible alternatives with better availability and competitive pricing.
• Seamless with pySim and other PC/SC‑based sim programming tools.
• Works smoothly with open‑source LTE/5G stacks like Open5GS and srsRAN in lab, campus, and enterprise deployments.

Looking for Sysmocom Alternatives? Choose HKCARD’s programmable test SIM cards to reduce lead times without changing your workflows.

Who we serve

• MVNOs and wholesale buyers: sim card wholesale, sim cards wholesale supplier, sim card suppliers
• Labs, universities, and system integrators building USIM test solution setups
• Private 4G/5G and IoT/Evaluation SIM Cards users (parking sim cards, gateways, meters)

Why teams choose HKCARD

• 10+ years as a dependable sim card manufacturer
• Wide range: programmable sim card 5g, usim 4g, 4G LTE/WCDMA blank cards, custom sim card options
• White‑label printing, profile customization, and rapid bulk fulfillment
• Open‑source‑friendly (pySim, Open5GS, srsRAN) with clear documentation
• Competitive pricing and consistent stock

Ordering and customization

• Choose capacity (128k/256k/512k), form factor (2FF/3FF/4FF), and applications (NFC wallet, Java applets).
• Define file‑system layout, ADM keys, and default writable fields (IMSI/Ki/OPc/ICCID/MNC/MCC).
• Branding: artwork, carrier text (SPN), packaging, and “trio” punch options.

Compliance and responsible use

Our products are intended for lawful, authorized testing and operations only. We do not support SIM cloning or any misuse. Terms may require proof of ownership/authorization for network credentials.

Frequently asked questions (FAQ)

1. Do HKCARD SIM cards work with pySim?
   Yes. Our programmable USIMs are pySim‑ready and operate with standard PC/SC readers.

2. Can I rewrite IMSI, Ki, OPc, ICCID multiple times?
   Yes—these are re‑programmable (not one‑time burn) cards. You can safely update fields for test cycles.

3. Do you have 5G Standalone (SA) R16 support?
   Yes. We supply Programmable 5G NR 3GPP R16 SA 5G SIM Card models, including 5G SA 128k SIM.

4. Are your cards compatible with Sysmocom workflows?
   Yes. If you use sysmocom SIM cards (sysmoISIM‑SJA2, sysmoUSIM‑SJS1, sysmoISIM‑SJA5, SJA2), our alternatives are designed for form/function/file‑system compatibility. HKCARD is not affiliated with Sysmocom.

5. Do you offer white label MVNO SIM cards?
   Absolutely—white sim cards, white label mvno sim cards, custom printing, and bulk sim packaging.

6. Do you provide NFC features?
   Yes—nfc sim / sim card nfc for wallet and secure applets; supports sim cards near field communication market use cases.

7. What form factors and memories are available?
   2FF / 3FF / 4FF (nano‑usim, half simcard lte trio) with 128k, 256k, and 512k options.

8. Do you sell blank eSIM?
   We provide blank esim for lab evaluation and integration testing (subject to regional regulations and platform support).

9. Are 4G LTE/WCDMA and GSM supported?
   Yes—USIM/LTE (not GSM‑only). We also offer 4G GSM SIM card and 4G LTE/WCDMA blank cards for device and network tests.

10. Can you supply CDMA/UIM/RUIM cards?
    Yes—cdma sim card, uim card, ruim card options are available for legacy requirements.

Call to action

Tell us what you need (memory, form factor, writable fields, branding) and we’ll quote fast. Contact HKCARD ELECTRONICS CO., LIMITED at [phone/WhatsApp：+8615817372512] to get samples or a bulk price list.

• HKCARD programmable 5G NR R16 SA USIM cards in 2FF/3FF/4FF, pySim/Open5GS compatible
• Bulk white label MVNO blank SIM cards (128k/256k/512k) from HKCARD ELECTRONICS

• Sysmocom Alternative: HKCARD’s pySim‑Ready Programmable 5G/4G USIM Cards
• Buy Writable IMSI/Ki/ICCID/OPc SIM Cards | HKCARD Electronics (2FF/3FF/4FF)
• Blank & White Label SIM Cards for MVNO, IoT and Labs | HKCARD Manufacturer
• Programmable SIM Card 5G SA R16 + LTE/WCDMA Blank Cards | HKCARD
• USIM Test Solution: HKCARD Cards for Open5GS/srsRAN, Java SIM Applets

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HKCARD ELECTRONICS CO., LIMITED

📧 Email:byronhan@cardmfg.com

🌐 Website: https://www.cardmfg.com/
📱 WhatsApp/Wechat: +8615817372512