Dual-chip access card

Your business card opens the gate.

One card, two chips: an NFC chip that shares your live profile, and a separate MIFARE credential that opens a compatible gate, door or barrier. We do not stock this as a standard card — it is made to order, so tell us what your access system reads and we will quote it.

Ask about a dual-chip card See the cards we do stock

What you get

Two jobs, one card

Shares your profile

An NFC chip opens your full live contact profile on any modern phone — one tap, no app. The printed QR does the same for a phone without NFC.

Opens the gate

A separate MIFARE access credential lets the same card work on a compatible gate, door or barrier.

One thing to carry

Your business card and your site pass in a single card — no second fob on the lanyard.

Made for sites

Built for marinas, yards and sites. Not part of our standard range today — tell us what your access system needs and we will quote it.

Product illustration. The touchpoint in it is a real code — scan it, or open the example profile.

Technical specifications

Exactly what's inside

NFC / profile chip: NXP NTAG213 — 13.56 MHz, ISO/IEC 14443A, NDEF. Encoded with your UniversalContacts tap link; carries a 7-byte UID.
Access credential: A separate MIFARE chip — supplied as MIFARE Classic 1K or DESFire to match your reader. This is the credential your access system reads.
Frequency: Both chips are high-frequency 13.56 MHz. The card does not work with 125 kHz low-frequency proximity systems (e.g. EM4100 or HID Prox).
Access UID: Depends on the MIFARE type — typically a 4-byte UID on Classic 1K or a 7-byte UID on DESFire. Confirm which your system expects.
Enrolment: The access credential must be enrolled into your access-control system by your provider. The two chips operate independently — programming one never affects the other.

Made to order, and worth a conversation first. We are not stocking the dual-chip card as part of the standard range at the moment — it looks identical to a plain white card, so we would rather sell you one only when it is genuinely the right thing. Access-control systems also vary: before ordering, confirm with your provider that they read 13.56 MHz MIFARE and can enrol a new credential. Tell us what your system needs and we will quote it. We do not warrant access-control compatibility with third-party hardware we have not tested, and the two chips operate independently.

Before you ask

Four things that settle it in one email

The card is straightforward to make and the access system is the part that decides whether it will work. Four answers are enough for us to come back with a real price rather than a range.

What does your reader actually read? Ask whoever maintains the barrier for the make and model. If they say MIFARE Classic, DESFire or “13.56 MHz”, we are in business. If they say 125 kHz, Prox, EM4100 or Indala, this card will not open it — that is a different frequency, not a different setting, and no amount of programming bridges it.

Can they enrol a new credential? Some systems are open to new cards and some are locked to a supplier’s own stock. This is worth asking before anything is printed, because it is the one answer that can stop the job dead.

How many, and for whom? Names go on the cards, so we need the list eventually — but for a price we only need the count.

When do you need them? Made to order means the date is real rather than a stock lookup, and we would rather say no to a date than miss one.

If the answers rule it out, we will say so and point you at a standard card plus a separate fob, which is usually cheaper anyway. We would rather lose the order than sell you a card that does not open your gate.

Not just an access card

It reports back, too

As well as opening the gate, the card shares your profile and lets the person you meet send their details back — every tap and scan logged, no app needed.

One live profile. Update it once, every card stays current.

Create free profile See card prices