K21
Self-Service Terminal

K21

21.5" Self-Service Kiosk — Binocular Face ID + Metal PIN Pad

Rockchip RK3576 6 TOPS NPU
Key Features

Why K21?

Specifications

Detailed Specifications

Main ControllerRockchip RK3576 Quad Cortex-A76 + Quad Cortex-A55 @ 2.2 GHz
NPU6 TOPS INT8/INT16, on-device face recognition
Memory4 GB LPDDR4X (opt. 8 GB) + 32 GB eMMC (opt. 64/128 GB)
Display21.5" FHD 1920×1080 IPS, 10-point capacitive touch, anti-glare tempered glass
Face RecognitionBinocular RGB + IR wide-dynamic, liveness / anti-spoofing
Card ReaderNFC/RFID 13.56 MHz + IC contact + magnetic stripe
PIN PadMetal backlit EPP with privacy shield, PCI-compliant
Receipt Printer58 mm thermal, auto cutter
CameraDual 2 MP (RGB + IR) with IR fill-light
Audio2× 5 W speaker + dual-mic array
ConnectivityGigabit LAN, Wi-Fi 6, BT 5.x, 4G LTE (opt.)
I/OUSB 2.0×4, RS232, RS485, HDMI out, GPIO
NetworkTCP/IP, HTTP/HTTPS, MQTT, WebSocket
PowerAC 100-240 V, 50/60 Hz
Operating−10 ~ +50 °C, IP54 front panel
MountFloor-standing pedestal (wall / desktop kits optional)
MaterialSECC steel + aluminum alloy, anti-corrosion coating
DimensionsCabinet 1400 × 460 × 95 mm (H×W×D) + pedestal
Applications

Scenarios

Bank branch self-serviceGovernment hall one-stop serviceHospital registration & paymentHotel self check-in / check-outTelecom service hallsCourt / tax / social security self-serviceSmart community & rural revitalization service stations
Gallery

Product Gallery

K21 - image 1
FAQ

Frequently asked questions

What is the K21 used for?

Bank branch self-service; Government hall one-stop service; Hospital registration & payment; Hotel self check-in / check-out; Telecom service halls; Court / tax / social security self-service

How much AI compute does the K21 provide?

6 TOPS INT8/INT16, on-device face recognition

How much memory does the K21 have?

4 GB LPDDR4X (opt. 8 GB) + 32 GB eMMC (opt. 64/128 GB)

What display does the K21 have?

21.5" FHD 1920×1080 IPS, 10-point capacitive touch, anti-glare tempered glass

What operating system does the K21 run?

−10 ~ +50 °C, IP54 front panel

What networking does the K21 support?

TCP/IP, HTTP/HTTPS, MQTT, WebSocket

What connectivity does the K21 support?

Gigabit LAN, Wi-Fi 6, BT 5.x, 4G LTE (opt.)

How much does the K21 cost?

Pricing is quoted per configuration and volume — there is no single list price. Send us the target quantity, configuration and destination and we will come back with a firm quote and lead time.

Can the K21 be customized or branded?

Yes. METO provides ODM and OEM customization on its platforms, including hardware configuration, enclosure, branding and packaging. See the ODM/OEM page for scope, or send us your requirements.

What is the minimum order quantity for the K21?

MOQ depends on whether you need a standard configuration or a customized build. It is confirmed together with the quotation — tell us your target volume and we will state the MOQ for that configuration.

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