I’m the CEO of HKCARD ELECTRONICS CO., LIMITED, and every day I answer the same question from new partners: “Which voltage variant of your 4G Nano+NFC Factory Sim Card do I actually need?”
Below, I’ll give you the definitive, Google-friendly guide—plus instant access to stock—so you can stop searching and start deploying.


🔋 Voltage Variants at a Glance (All In-Stock Today)

ModelVoltageBest Use-CaseGlobal Cert.Inventory
4G Nano+NFC Factory Sim Card 1.8 V1.62 V–1.98 VUltra-low-power IoT sensorsCE, FCC180 k
4G Nano+NFC Factory Sim Card 3.6 V3.0 V–3.6 VLegacy M2M modemsRoHS, REACH150 k
4G Nano+NFC Factory Sim Card 1.62 V–5.5 VWide-rangeAutomotive & rugged devicesAEC-Q100220 k
4G Nano+NFC Factory Sim Card V3.0 C-CLASSAuto-sensing 1.8 V/3.0 V/5.5 VUniversal deploymentGSMA SAS-SM300 k

All variants share the same NFC-SIM core: Sim SWP ready, NFC USIM secure element, and nfc white blank card surface for your branding.


📦 What You Get From HKCARD in 3 Steps

  1. Quote in 15 min—tell me voltage, quantity, and region.
  2. Free test sim card—shipped today, works in your lab tomorrow.
  3. Bulk 4G Nano+NFC cards—delivered with your logo, OTA keys, and DHL tracking.

🌍 Local Names, One Factory

  • nfc sim karte (Germany)
  • tarjeta SIM NFC (Spain & LATAM)
  • kartu nfc (Indonesia)
  • nfc simkaart (Netherlands)
  • nfc sim kart (Turkey)

Whatever you call it, it’s the same nfc sim quality—ISO 9001:2015 certified.


❓ 5 Quick Ask-Reply Headlines (Featured-Snippet Ready)

  1. Q: Which voltage should I pick for my 4G Nano+NFC Factory Sim Card?
    A: Use 1.8 V for battery sensors, 3.6 V for legacy modems, and 1.62 V–5.5 V for automotive; the V3.0 C-CLASS auto-switches.

  2. Q: Can I brand the NFC white blank card?
    A: Yes—HKCARD prints or laser-engraves your logo with MOQ 1 k and 24-hour proof.

  3. Q: Where to buy NFC SIM cards in bulk?
    A: HKCARD ships nfc sim cards globally from Shenzhen, 48-hour dispatch, all voltage variants.

  4. Q: Is the Factory Sim Card V3.0 C-CLASS compatible with Sim SWP?
    A: Absolutely—every card has a certified Sim SWP line for sub-150 ms NFC transactions.

  5. Q: How fast is delivery for a test sim card?
    A: Order before 3 PM GMT+8, receive test sim card via DHL Express in 2–4 days, free of charge.


🔗 Ready to Order?

Contact HKCARD Today​

Partner with HKCARD ELECTRONICS for ​OEM SIM cards​
📞 ​Contact us now​:byronhan@cardmfg.com
byronhan1@gmail.com
byron@cardmfg.com
My skype/Teams is byron1681
Whatsapp /Phone Number:+8615817372512
🌐 ​Visit our website​: https://www.cardmfg.com/


 

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