The RK3576 platform brings high performance to large-screen terminals. A 21.5-inch full-view capacitive touchscreen at 1920×1080 with a quad-core Cortex-A72 + quad-core Cortex-A53 processor, 4 GB/8 GB DDR and storage expandable to 128 GB suits information display, self-service and industrial control projects that need a large display area, greater computing power and long-term stable operation.
| Common Project Requirements / Pain Points | Conventional large displays only show content and cannot interact or connect | Large-screen terminals are assembled from screens, hosts and adapter modules, driving up cost | The project has requirements for performance, OS version and future expansion | The site needs to connect peripherals, collect data and connect to back-end systems |
|---|---|---|---|---|
| How the MDC-21761P solves it | 21.5-inch full-view capacitive touchscreen + Android 14 / Linux | An all-in-one structure integrating host, display, touch and interfaces | RK3576 octa-core + 4 GB/8 GB DDR + 32 GB/64 GB/128 GB eMMC | RS232×2, RS485×2, TTL×1, USB 2.0×2, USB 3.0×1, Gigabit RJ45 |
| Customer Value | Rapid upgrade to a large-screen terminal that is interactive, networkable and manageable | Fewer split components and wiring, lowering integration and maintenance costs | Reserves more headroom for application operation, data storage and version upgrades | No extra expansion needed for peripherals, simplifying data acquisition and platform integration |
| Model | MDC-21761P-L01 | MDC-21761P-L02 |
|---|---|---|
| Configuration | DDR 4 GB / eMMC 32 GB | DDR 8 GB / eMMC 64 GB |
| Screen Brightness | 350 cd/m² | 350 cd/m² |
| Interfaces | RS232×2, RS485×2, TTL×1 USB 2.0×2, USB 3.0×1, USB OTG×1 |
RS232×2, RS485×2, TTL×1 USB 2.0×2, USB 3.0×1, USB OTG×1 |
| Part Number | MDC-21761P |
|---|---|
| CPU | RK3576, quad-core Cortex-A72 + quad-core Cortex-A53, up to 2.2 GHz |
| Configuration | DDR: onboard 4 GB, expandable to 8 GB; eMMC: onboard 32 GB, expandable to 64 GB/128 GB |
| Operating System | Android 14 / Linux |
| Dimensions | 533.6×320.9×46.7 mm |
| Brightness | 350 cd/m² (Typ) |
| Resolution | 1920×1080 |
| Viewing Angle | Full viewing angle |
| Serial Ports | RS232×2, RS485×2, TTL×1 |
| USB | USB 2.0×2, USB 3.0×1, USB OTG×1 |
| Audio | 1x mono MIC / stereo HP, 1x stereo SPK |
| GPIO | IO×4 |
| Ethernet | 1x RJ45 10M/100/1000Mbps auto-sensing |
| Wi-Fi | Single-band Wi-Fi & BT module |
| SIM Card | Nano SIM card |
| Power | DC 12V input, DC5.5×2.1 mm |
| TF Card | 1x TF card slot |
| Button Openings | 1x Recovery button opening |
| Environment | Temperature: -10℃~60℃; Humidity: 0%~90% RH, non-condensing |
| Interface Direction | Serial Communication | USB / OTG | Network Communication | Audio & Control Expansion |
|---|---|---|---|---|
| Specification Source | RS232×2, RS485×2, TTL×1 | USB 2.0×2, USB 3.0×1, USB OTG×1 | Gigabit auto-sensing RJ45, Wi-Fi & BT, Nano SIM | MIC / HP, SPK, GPIO IO×4, TF card, Recovery button opening |
| Customer Value | Suitable for control boards, sensors, barcode scanners, card readers, industrial instruments and other serial peripherals. | Covers common peripheral connections, data transfer and debugging maintenance. | Suitable for wired, wireless and mobile deployment, easy to connect to a platform or local network. | Convenient for audio prompts, device control, data storage and maintenance. |
| Model | MDC-21761P-L01 | MDC-21761P-L02 |
|---|---|---|
| Configuration | DDR 4 GB / eMMC 32 GB | DDR 8 GB / eMMC 64 GB |
| Screen Brightness | 350 cd/m² | 350 cd/m² |
| Interfaces | RS232×2, RS485×2, TTL×1 USB 2.0×2, USB 3.0×1, USB OTG×1 |
RS232×2, RS485×2, TTL×1 USB 2.0×2, USB 3.0×1, USB OTG×1 |
| Type | 4G Module | Adapter | External Wi-Fi Antenna | External 4G Antenna |
|---|---|---|---|---|
| Part NO. | EG800AK | Chinese Standard | 2.4 GHz magnetic-mount antenna | 4G magnetic-mount antenna |
| Description | Cat 1, Mini PCIe | 12 V / 3 A | 3 m extension cable | 3 m extension cable |
| Pairing Direction | 4G Module / External 4G Antenna | Barcode Scanners / Card Readers | Sensors / Control Boards | External Wi-Fi Antenna / Adapter |
|---|---|---|---|---|
| Suitable Projects | Large-screen self-service terminals, public service terminals, sites where cabling is difficult | Self-service, identity verification, query and payment terminals | Industrial equipment, edge data acquisition, smart locker control | Volume deployment, wireless networking, complete-unit delivery |
| Customer Value | Enhances mobile connectivity for more deployment environments | Extends terminal identification, operation and closed-loop business capabilities | Supports device connection via RS232 / RS485 / TTL | Improves wireless deployment flexibility and delivery efficiency |
