A self-order screen that cannot take payment is half a deployment. The customer chooses, then walks to a counter, and the queue you were trying to remove reforms in a different place.
This guide covers how to specify self-service display contactless payment on a SUNMI FLEX 3: which SKUs carry NFC, when to add the external card module instead, and what has to be confirmed with your acquirer before the hardware order goes out. See the specification on the SUNMI FLEX 3 product page.
Rosper is the authorized SUNMI distributor in North America. The guidance below is about specification, not about certification, which always depends on your payment provider.
Key Takeaways
- Not every FLEX 3 SKU has NFC. The KDS variants do not, and on other sizes it is a configuration option rather than a default.
- Decide acceptance per position, not per site. A kitchen screen and a self-order screen have opposite requirements.
- There is a module route. The 3-in-1 NFC, magnetic stripe and scanner module adds card paths the base screen does not carry.
- Hardware capability is not certification. A device that can read a card still needs an approved payment flow with your acquirer.
- Plan the fallback. Decide now what happens when a card is declined or the network drops at an unattended position.
Self-Service Display Contactless Payment: Why the Acceptance Point Belongs on the Screen
The argument for putting acceptance on the self-service display is queue mechanics rather than technology. Every step that moves a customer from one physical point to another is a place where the queue reforms and where an order gets abandoned.
It also removes a second device from the install. One screen with one power feed and one network drop is cheaper to mount, cheaper to support, and has fewer cables for somebody to unplug.
The counter-argument is real too. A separate certified payment terminal is a well-trodden path with your acquirer, and it isolates the payment approval from the rest of your build. Which one wins depends on how much certification work you are prepared to carry.
Which FLEX 3 SKUs Carry NFC
| SKU | Model | Size | NFC |
|---|---|---|---|
| P11050019 | FLEX 3 15.6 KDS | 15.6 in | No |
| P11050020 | FLEX 3 15.6 | 15.6 in | Yes |
| P11050016 | FLEX 3 18.5 KDS | 18.5 in | No |
| P11050015 | FLEX 3 18.5 4G | 18.5 in | Optional |
| P11050012 | FLEX 3 18.5 6G | 18.5 in | Optional |
| P11050005 | FLEX 3 22 4G | 21.5 in | Optional |
| P11050001 | FLEX 3 22 6G | 21.5 in | Optional |
| P11050009 | FLEX 3 27 4G | 27 in | Optional |
| P11050006 | FLEX 3 27 6G | 27 in | Optional |
The pattern is simple once you see it. The KDS variants are built for back of house and deliberately omit NFC. On the other sizes it is a configuration option, so the part number on your quote is the thing to check, not the product family name.
The Module Route
Where the base screen does not carry the card path you need, the accessory range covers it.
| SKU | Module | What it adds |
|---|---|---|
| C20000079 | 3-in-1 NFC, MSR and Scanner | Contactless, magnetic stripe, and scanning in one attached module |
| C10020006 | 2D Barcode Scanner | Scanning only, for voucher and QR redemption |
| C12004010 | POE Modular | Power over Ethernet, one cable to the mount |
The magnetic stripe path in the 3-in-1 module matters more in North America than most vendors admit. Stripe-only cards still turn up, and an unattended position that cannot read one produces an abandoned basket rather than a fallback.
Specifying Contactless Payment on a SUNMI FLEX 3?
Share your FLEX 3 screen configuration, payment processor or RKI requirements, mounting needs, quantity, and target date, your destination, and target date. Rosper will confirm the compatible FLEX 3 and payment accessory configuration, current warehouse availability, and a quote with a realistic lead time. For a multi-site deployment, include the site count and rollout schedule so we can plan staging and kitting.
Get Configuration & Quote
What to Confirm Before the Hardware Order
- Which SKU, by part number. Confirm NFC is on the exact configuration being quoted, not on the family.
- Which payment paths you need. Contactless only, or contactless plus chip, plus stripe. This decides whether a module is required.
- Your acquirer’s position. Ask whether they support acceptance on this device class and what the approval path looks like.
- Your certification scope. Confirm what your software has to be certified for, and who carries that work.
- The attended fallback. Decide what a customer does when payment fails at an unattended screen.
- Compliance for cardholder data. If your application touches it, confirm your architecture against the current requirements published by the PCI Security Standards Council.
The order matters. Confirming the acquirer position before the hardware order is cheap. Discovering it after fifty screens are mounted is not.
Choosing the Screen Size for a Self-Service Position
| Position | Suggested size | Why |
|---|---|---|
| Counter-top self-order | 18.5 in | Fits a counter without a floor footprint |
| Free-standing self-order | 22 in | Readable while standing, works on a floor stand |
| High traffic quick service | 27 in | Readable from a queue, doubles as a menu surface |
| Compact retail self-checkout | 18.5 in | Small footprint, pairs with a desktop stand and scanner |
Our FLEX 3 size guide covers the full size and configuration matrix.
Warranty and Support in North America
Current generation SUNMI hardware carries a 3 year manufacturer warranty, with wear parts covered for 1 year. The warranty is provided by SUNMI. Rosper assists with warranty claims, helping you connect with SUNMI faster.
Full terms are published on the Rosper warranty page.
Rosper is SUNMI’s authorized distributor for the United States and Canada. Our team helps buyers match SUNMI devices, compatible accessories and deployment services to the workflow, confirm exact configurations and current warehouse availability, and coordinate shipping, staging, kitting and warranty support for pilots or multi-location rollouts.
Frequently Asked Questions
Can a SUNMI FLEX 3 take contactless payments?
NFC is available on the standard variants as a configuration option, and the 3-in-1 module adds contactless, magnetic stripe, and scanning where the base screen does not. The KDS variants do not include NFC. Confirm the exact part number on your quote.
Does NFC hardware mean the device is certified for payments?
No. Hardware capability and an approved payment flow are two separate things. Certification depends on your payment provider, your software, and the acceptance path you are using, and it should be confirmed before the hardware order.
Do I still need a separate payment terminal?
It depends on your acquirer and on how much certification work you want to carry. A separate certified terminal is the well-trodden route. Acceptance on the display removes a device and a queue step, but the approval path is yours to confirm.
Why would a self-service screen need magnetic stripe?
Stripe-only cards still appear in North America. At an unattended position, a card that cannot be read becomes an abandoned order rather than a fallback to a cashier, which is why the 3-in-1 module is worth considering.
Which FLEX 3 size suits a self-order kiosk?
18.5 inch for a counter-top position, 22 inch for a free-standing unit, and 27 inch where the screen is read from a queue or doubles as a menu surface.
Get the Right Configuration Confirmed
Tell us the position, the payment paths you need, and who your acquirer is. We will confirm which SKU and module combination fits before anything is ordered.
Request a self-service hardware quote and we will confirm availability across eight North American warehouses within one business day. There is no minimum order, so a single evaluation unit is a valid request.
Specification source: SUNMI official documentation and the Rosper SKU index, current as of 2026. Confirm the exact configuration on your quote before placing a purchase order.