Industrial Automation Solutions
Product Datasheet
13 May 2026
Panel PC / Monitor / Mobile · ARM-based-Panel-PC
SID‑21WR2
Series: SID
The Avalue SID‑21WR2 is a 21.5‑inch semi‑industrial panel PC featuring a 1920×1080 LED‑backlit TFT LCD with projective‑capacitive multi‑touch (PCAP) support for up to 10 touch points. Powered by a Rockchip RK3568 quad‑core Cortex‑A55 processor (up to 2.0 GHz) with 2 GB DDR4 RAM and 32 GB eMMC storage, it delivers reliable performance for embedded and industrial applications. The system operates fanlessly and accepts wide DC power input (12–24 V), making it well‑suited for factory automation, retail kiosks, control panels, and digital signage. Connectivity includes 2 × USB 3.0, 1 × Gigabit LAN, HDMI output, RS‑232 + RS‑485 serial, and optional Wi‑Fi / Bluetooth. The front panel is IP65‑rated for dust and splash protection, and the VESA mount support makes installation flexible.
Key Features
- 21.5\" 1920 x 1080 Semi-Industrial Panel PC with PCAP touch
- Rockchip RK3568 Arm Quad Cortex-A55, up to 2.0GHz
- 2GB DDR4 / 32GB eMMC
- Fanless operation from -20°C ~ 60°C (-4°F ~ 140°F)
- Support Android 11, Debian 11
Technical Specifications
System Information
| Processor | Rockchip RK3568 Arm Quad Cortex-A55, up to 2.0GHz |
|---|---|
| System Memory | 2GB DDR4 |
Storage
| Storage | 32GB eMMC |
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Display
| Graphic Chipset | Mali-G52 support OpenGL ES 1.1/2.0/3.2, Vulkan 1.0/1.1, OpenCL 2.0 |
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Audio
| Speaker Output | Optional 2 x 4Ω 2W |
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Ethernet
| LAN Chipset | Realtek RTL8211F-CG |
|---|---|
| Ethernet Interface | 10/100/1000 Base-Tx GbE compatible |
Power Requirement
| DC Input | +12V ~ +24V |
|---|---|
| DC Input Connector | Lockable DC Jack |
| Adapter | Input: 100~240 Vac/50~60 Hz Output: 60W Adapter (12V @ 5A Adapter) |
Software Support
| OS | Android 11 / Debian 11 |
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Certification
| Certification Information | CE, FCC Class B |
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Panel
| LCD Size | 21.5\" |
|---|---|
| LCD Panel | TFT |
| Resolution | 1920 x 1080 |
| Pixel pitch | 0.24795 (H) x 0.24795 (V) mm |
| Luminance | 250 cd/m2 |
| Contrast ratio | 3000 |
| Viewing angle | 89 (U), 89 (D), 89 (L), 89 (R) |
| Response time | 30ms |
| Backlight | LED |
| Touch Type | Projective capacitive multi-touch up to 10 points |
| Touch Light Transmission | 86% |
External I/O
| USB Port | 2 x USB 3.0 |
|---|---|
| Audio Port | 1 x Headphone Jack |
| LAN Port | 1 x RJ45 |
| COM Port | 1 x RS-232 (DB9), 1 x RS-485 (DB9) |
| HDMI | 1 x HDMI 2.0 |
| Antenna | 2 x Wi-Fi/BT Antenna |
| DC input | 1 x DC Jack |
| Other | 1 x Power button with LED, 1 x Reset button |
Wireless Communication
| WLAN | Optional Wi-Fi 802.11ac/a/b/g/n |
|---|---|
| Bluetooth | Optional BT 5.0 |
Mechanical & Environmental
| Operating Temp. | 0°C ~ 40°C (32°F ~ 104°F) |
|---|---|
| Storage Temp. | -20°C ~ 60°C (-4°F ~ 140°F) |
| Operating Humidity | 40°C @ 95% Relative Humidity, Non-condensing |
| Dimension (W x L x H) | 535.3 x 329.3 x 48.1 mm |
| Weight | 7.2 kg |
| IP Rating | Front panel IP65 |
| VESA | 100 x 100 |
| Power Requirement | DC +12 ~ +24V |
| Power Mode | AT/ATX (ATX is default) |
| System Fan | Fanless |
| Color | Black |
| Construction | Metal |
Packing List
| Packing List | 1 x AC/DC 60W Adapter 12V/5A, 1 x Power Cord |
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