Need hardware that can read or encode the exact chip family you plan to deploy?
Stock SKU. Custom tooling from 2,000 pcs.
Standard; rush possible on request.
Stock samples via DHL / FedEx.
Use this hardware when the project needs enrollment, encoding, or compatibility testing around a specific chip family and interface. Confirm protocol support, SDK expectations, and deployment style before the shortlist is locked.
What buyers usually confirm first
swipe →Spec Check
Chip protocol, operating system, interface, and SDK expectations should all be clear before a reader sample is approved.
| Product Name | JustID NFC USB Dongle (Keyboard Emulator) |
| Operating Frequency | 13.56MHz (HF) |
| Compliance | ISO/IEC 14443 A/B, ISO/IEC 15693 |
| Integrated Interface | NXP IC for efficient and reliable RF communication |
| Communication Speed | Up to 424 Kbit/s |
| Read Range | 0-50 mm (0-1.97 in) |
| Supported Cards | NXP MIFARE Classic/DESFire/Plus, NTAG 21x, NTAG 4xx DNA, JCOP Java Card, ICODE SLIX |
| Connectivity | USB (HID + CDC ACM dual interface) |
| Supply Voltage | 5V via USB |
| Supply Current | 150 mA (operating) |
| Dimensions | Enclosure: 71 x 20 x 11 mm; OEM board: 69 x 15 x 3 mm |
| Weight | Enclosure: 26 g; OEM board: 10 g |
| Firmware Tiers | Lite (ISO14443 keyboard emulation), Standard (ISO14443 + ISO15693), Plus (DESFire authentication + keyboard emulation), VAS (Apple VAS keyboard emulation) |
| Firmware Upgrades | Premium upgrades: Lite to Standard/Plus/VAS (field-upgradeable, same hardware) |
| Configuration | Free JustID Configuration Tool customize UID format, LED RGB colors, prefix/suffix |
| Warranty | 2-year standard (3 or 5-year options) |
Shortlist Logic
Hardware usually stays in consideration when it reduces integration risk and supports the exact credential workflow being planned.
Use Cases
Deployment context helps determine whether this hardware belongs at a desk, in a kiosk, in a gate, or inside a device.
employees tap NFC badge on dongle, UID types into attendance software cursor position, no software modification needed
card tap injects customer ID into POS lookup field for loyalty, membership, and stored-value account retrieval
badge tap at reception types visitor ID into check-in application for instant registration and badge printing
NFC card UID feeds into any enterprise software text input field (SAP, Oracle, Salesforce) via keyboard emulation
card tap enters patron barcode-equivalent into legacy library management systems via keyboard buffer
NFC wristband or card tap types patient ID into EMR/EHR admission forms at reception terminals
JustID Dongle vs µFR Nano — How To Choose
Both are compact USB NFC readers. JustID Dongle is a minimal UID-only reader. Presents tag UID as keyboard input, zero configuration, works with any software. µFR Nano is full-featured — supports MIFARE / NTAG / DESFire read + write + encode with developer SDK. Pick by whether you need encoding or just UID detection.
Option A UID only, keyboard input, zero-config
Best for
Option B SDK, read + write + encode
Best for
Quick decision tip — If you only need UID detection and your existing software accepts keyboard input (forms, spreadsheets, POS), JustID (Option A) at 1/3 the price drops into place with zero development. For encoding, card issuance, or any workflow that writes data to tags, µFR Nano (Option B) delivers the full SDK.
Yes — if you need NFC card identification integrated into existing software (ERP, CRM, attendance, POS, library, healthcare EMR / EHR) without writing a single line of code, SDK integration, or driver installation. JustID outputs NFC card UIDs as keystrokes to any host application, eliminating 80-90% of the integration effort compared to SDK-based reader deployment (Digital Logic Integration Guide, 2024). It plugs into any USB port and begins working immediately.
Pick a different reader if you need (a) custom SDK access for DESFire AES authentication or NTAG424 DNA SUN verification (use µFR Nano), (b) network-connected Wi-Fi / Ethernet deployment (use µFR Nano Online), (c) long-range 80-200 mm read (use µFR XL OEM or µFR Classic CS), or (d) TCP/IP + PoE building-wide deployment (use RFID Reader/Writer). Pick JustID when: fast time-to-deployment matters more than deep protocol access; IT team lacks or doesn’t want to maintain custom reader middleware; target software is legacy / closed-source with only keyboard input; and users tap a badge once per transaction into a text field.
Comparison across the 5 keyboard-emulation and low-code NFC reader options IT teams typically evaluate. Prices indicative at MOQ 50 units.
| Class | Integration effort | Chip coverage | Secure auth | Best fit | Unit price |
|---|---|---|---|---|---|
| The JustID (Lite firmware) | Zero code — USB HID keyboard | ISO 14443 A/B (MIFARE, NTAG) | No (UID only) | Attendance, POS, kiosk, ERP / CRM lookup | $45 – 95 |
| The JustID Plus firmware | Zero code + DESFire tap auth | Full MIFARE + DESFire EV3 | Yes (DESFire AES tap verification) | Secure access where DESFire auth is required without SDK | $75 – 125 |
| The JustID VAS firmware | Zero code + Apple VAS keyboard | ISO 14443 + Apple Wallet VAS | Apple VAS (pass-on-iPhone) | Loyalty programs with Apple Wallet integration | $95 – 155 |
| Generic PC/SC NFC reader (ACR122U class) | Driver + PC/SC SDK required | Full MIFARE + NTAG + JCOP | Requires custom code | Developers / SIs building custom apps from scratch | $35 – 75 |
| µFR Nano (SDK-based) | SDK integration (7+ languages) | Full MIFARE + NTAG424 DNA + JCOP | Yes (AES / SUN in SDK) | OEM / SI building custom terminals with deep protocol access | $85 – 165 |
Verdict: JustID wins when zero-code + keyboard-only output is the deployment pattern (attendance, POS, kiosk, library / healthcare check-in into legacy apps). µFR Nano wins when you need SDK access. Generic ACR122U wins on raw unit cost for developer prototyping with willingness to write code.
Manufacturing groups roll out keyboard-emulation NFC dongles for plant attendance because the dongle types the card UID straight into the existing HR or ERP text field: no SDK project, no per-plant software deployment, no driver management. IT effort per site is plugging in hardware and confirming the field mapping.
The configuration tool sets UID format, prefix/suffix, and Enter-key behavior once; the same profile is then applied across the fleet for consistent behavior at every workstation.
Verified compatibility across firmware tiers, host operating systems, target application categories, and USB interface modes.
| Category | Supported | Notes |
|---|---|---|
| Firmware tier — Lite | ISO 14443 A/B UID keyboard emulation (MIFARE, NTAG) | Default starter tier; sufficient for attendance, POS lookup, kiosk ID |
| Firmware tier — Standard | Lite + ISO 15693 support (ICODE SLIX library tags) | For library patron ID + industrial vicinity tags |
| Firmware tier — Plus | Standard + DESFire AES-128 authentication (tap verification) | For secure access into legacy software where DESFire auth is required without SDK |
| Firmware tier — VAS | Plus + Apple Value Added Services keyboard emulation | For loyalty / membership programs integrating Apple Wallet passes |
| Firmware upgrade path | Lite → Standard / Plus / VAS field-upgradeable via free JustID Configuration Tool | Same hardware; upgrade unlocks features without replacing device |
| Host operating systems | Windows 10 / 11 / Server, macOS 10.15+, Linux (Ubuntu / Debian / RHEL), Chrome OS, Android 8.0+, iPadOS 14+ | Works as standard USB keyboard device — zero drivers, zero install |
| Target applications — attendance | ADP Workforce Now, UKG (Kronos), Paychex Time, BambooHR, Deputy, Humanity, When I Work, Stratustime, Replicon | Tap-to-punch workflows with zero software modification |
| Target applications — POS / loyalty | NCR Counterpoint, Oracle Simphony, Toast, Square, Shopify POS, Clover, Lightspeed, Aloha, Revel | Customer ID tap injects into POS lookup field for loyalty / stored-value retrieval |
| Target applications — ERP / CRM | SAP ERP / S/4HANA, Oracle NetSuite, Microsoft Dynamics 365, Salesforce, HubSpot, Zoho | Employee / customer ID tap into any text input field |
| Target applications — library | Bibliotheca selfCheck, 3M self-checkout, mk Solutions, Koha, Follett Destiny, SirsiDynix | Patron ID tap enters into legacy library management system text field |
| Target applications — healthcare | Epic MyChart, Cerner (Oracle Health), Meditech, Allscripts, athenahealth; patient / staff ID check-in | HIPAA-sensitive deployments; no network traffic from dongle (USB only) simplifies security review |
| Configuration tool | Free JustID Configuration Tool (Windows / macOS / Linux) | Customize UID format (decimal / hex / prefix / suffix), RGB LED colors, keystroke timing, field separation characters |
| USB interface modes | HID (keyboard emulation, default); CDC ACM (advanced programming access for customers who want it) | Dual-interface exposure means one dongle serves both zero-code + SDK use cases |
How much does JustID cost at 50 units? Enclosure + Lite firmware: $55-75 per unit at MOQ 50. Volume brackets: MOQ 10 = $75-95 per unit; MOQ 50 = $55-75 (base); MOQ 500 = $42-58; MOQ 5,000+ = $32-45.
Firmware tier up-charge? Lite (base): included. Standard (adds ISO 15693): +$5-8 per unit. Plus (adds DESFire AES): +$15-22 per unit. VAS (adds Apple VAS): +$25-35 per unit. Field-upgrade Lite → Standard: $8 per unit remote upgrade; Lite → Plus: $18; Lite → VAS: $28.
Form factor? Standard enclosure (71 x 20 x 11 mm, 26 g): base price. OEM board (69 x 15 x 3 mm, 10 g): -$8-15 per unit. OEM variant for customer enclosure integration.
Custom configuration? Stock config (decimal UID, no prefix / suffix): included. Custom format (hex / prefix / suffix / specific field length): free via Configuration Tool. Factory pre-configuration with customer-specific settings: included at 50+ units.
Warranty? 2-year standard: included. 3-year extended: +$4-6 per unit. 5-year extended: +$9-14 per unit (recommended for enterprise deployments with long refresh cycles).
What’s the case vs an SDK-based reader? The dongle removes the per-deployment integration project entirely — it types the UID into the existing application with zero code, which is where most of the cost difference lives at fleet scale. The trade-off is flexibility: JustID cannot do DESFire AES session-key or multi-app file reads; it only types the UID.
Keyboard-emulation NFC readers are growing faster than SDK-based readers in unit terms because enterprise IT teams increasingly decline integration projects for single-ID lookup workflows: attendance, legacy POS lookup, visitor kiosks, patient check-in. A device that types the UID into the existing text field deploys in minutes and needs no application change.
SDK-based readers remain the right tool where the workflow is multi-step secure authentication rather than simple identification.
The JustID standard enclosure measures 71 x 20 x 11 mm and weighs 26 g, designed as a compact USB stick form factor that plugs directly into any USB port. The black housing with a white NFC sensing area on top provides clear visual indication of where to tap cards. No drivers or software installation required the dongle is recognized as a standard USB keyboard device by every major operating system including Windows, macOS, Linux, Chrome OS, and Android.
JustID is available in four firmware tiers: Lite (ISO 14443 keyboard emulation), Standard (adds ISO 15693 support), Plus (adds DESFire authentication), and VAS (Apple Value Added Services keyboard emulation). All variants share the same hardware firmware upgrades unlock additional features without replacing the physical device. Start with Lite for basic UID output and upgrade to Plus or VAS as project requirements evolve.
The enclosure is designed for high-frequency daily use at reception desks, POS counters, and attendance terminals. The flat top surface provides a natural tap target for cards, badges, and NFC-enabled phones. An RGB LED behind the sensing area provides configurable visual feedback green for successful read, red for error, and custom colors configurable through the free JustID Configuration Tool.
The JustID OEM board at 69 x 15 x 3 mm and just 10 g strips the enclosure for embedding inside custom hardware products, kiosks, and industrial terminals. The exposed USB connector and antenna pad enable direct PCB integration. This variant is ideal for product manufacturers building NFC keyboard emulation into their own terminal designs without the cost of developing custom reader firmware.
Supplier Fit
Once the format is right, most teams still need confidence in manufacturing control, sample support, and repeat-order reliability.
Quality-focused manufacturing and sample support for custom RFID projects.
RFID manufacturing experience across cards, tags, labels, wristbands and readers.
Test product compatibility before bulk purchasing and customization decisions.
Next Reading
Use these references when protocol fit, interface choice, and reader workflow still need to be validated before sampling.
Comparison Pages
These head-to-head pages help buyers compare chip, frequency, material or format decisions before they lock a sample plan for this product.
Commercial Fit
Most inquiry-ready visitors want to know whether this product matches their workflow, region and approval stage. These cues help them move faster without leaving the product page.
Usually need reader compatibility, interface clarity and sample hardware that matches the planned deployment.
Often looking for OEM-ready modules or development-friendly reader hardware with practical integration support.
Typically focused on workstation issuance, desktop testing and reader plus credential matching.
Quote Checklist
Market Notes
Desktop enrollment, access-control replacement and asset-reading workflows often require clear driver and interface expectations.
Reader projects commonly involve NFC development, kiosk integration and bundled supply with matching tags or cards.
Attendance, access-control and hospitality rollouts often prioritize simple deployment and dependable hardware pairing.
Nearby Options
Teams often keep a few hardware paths open until interface, deployment style, and credential support are all clear.
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Compare this optionBefore You Order
Five short reads on the procurement-side topics every B2B RFID buyer wants answered before signing a quote — MOQ thresholds, lead time reality, pricing transparency, sample policy, and how to audit a Chinese factory before your first order.
Buyer Questions
These FAQs cover the points that usually come up between a first shortlist and a real sample or quote request.
For JustID NFC USB Dongle, the standard MOQ starts at 1 piece (for evaluation); 10+ for bulk order on stock SKUs. Custom shapes, molds or non-standard materials typically move MOQ to 2,000–5,000 pieces to cover tooling setup. Exact MOQ and unit pricing are quoted per project once chip, customization and packaging are confirmed.
Yes. Stock rfid readers samples of JustID NFC USB Dongle are typically free; we only ask buyers to cover DHL/FedEx express shipping. Samples ship in 1–3 business days after your order is confirmed and arrive in 2–5 days to most countries. Custom samples (new chip, new size, printed artwork) usually take 3–7 additional days.
Standard JustID NFC USB Dongle orders ship in 7–15 business days after PO confirmation and artwork approval. Large runs (>100k units) or orders with complex encoding / custom molds may take 15–25 business days. Rush production is available on request for time-sensitive launches; confirm MOQ and artwork early to protect the timeline.
Yes. JustID NFC USB Dongle supports end-to-end customization: full-color CMYK / silk-screen / UV printing, laser engraving, serial numbering, custom chip encoding (UID write, NDEF, sector locking), custom shape / size (subject to tooling MOQ), and packaging. Share your artwork, chip requirement and quantity and we will return a spec sheet + price within 24 hours.
Compatibility depends on the frequency band (LF 125 kHz / HF 13.56 MHz / UHF 860–960 MHz) and chip family used by your reader or installed system. Send a photo of your current card / reader model and we will recommend the matching chip + test a sample before bulk order.
RFIDAK operates under ISO 9001:2015 (Quality Management) and ISO 14001 (Environmental Management), audited by SGS. JustID NFC USB Dongle is subject to incoming material inspection, in-process QC at every lamination / bonding / encoding step, and 100% electrical performance testing before shipment. Products meet CE, FCC, RoHS and REACH as applicable by market. Full test reports are available on request for buyer audits.
Yes. JustID NFC USB Dongle ships with SDK and sample code (Windows / Linux / Android where applicable), plus USB-HID keyboard-emulation mode for zero-integration deployments. Request the developer bundle at inquiry stage and we will include it with the evaluation unit.
RFIDAK ships JustID NFC USB Dongle via DHL / FedEx / UPS (door-to-door, 3–5 days to most countries), air cargo (5–7 days for heavier orders), or sea freight (20–35 days for bulk over 500 kg). Standard Incoterms are EXW, FOB Shenzhen and DDP; choose based on customs clearance preferences. Commercial invoice, packing list and CoC / MSDS are included automatically.
For repeat buyers, RFIDAK locks tooling, artwork and chip encoding on file so subsequent POs ship faster — typically 5–10 business days for stock chip types at previously-run quantities. Price is adjusted transparently per chip market rate and FX movement; we flag any chip shortage (e.g., DESFire EV3) before quotation so the project plan stays realistic.
Key JustID NFC USB Dongle specs: frequency 13.56 MHz (HF); dimensions Enclosure: 71 x 20 x 11 mm; OEM board: 69 x 15 x 3 mm. A full technical datasheet including read range, chip memory map, IP / temperature rating and compliance certificates is available on request; attach your reader model and target environment so we can confirm suitability before quoting.
Try before you buy. Request free samples of any RFID product from our 50+ SKU catalog. Samples shipped via DHL/FedEx within 1-3 business days worldwide.
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