Product Datasheet
20 May 2026
Panel PC / Monitor / Mobile · Industrial-Panel-PC
SID-21WR2
Series: SID
The Avalue SID-21WR2 is a 21.5" Full-HD semi-industrial touch panel PC powered by the Rockchip RK3568 (quad-core Arm Cortex-A55 up to 2.0GHz) processor, designed as a large, fanless front-end for self-service kiosks and digital signage. With 2GB DDR4, 32GB eMMC, and Android 11 or Debian 11 support, it delivers a responsive app experience in a rugged metal enclosure with an IP65 front. The 1920x1080 PCAP 10-point multi-touch panel pairs with a Mali-G52 GPU and a high 3000:1 contrast display. Connectivity includes Realtek Gigabit LAN, 2x USB 3.0, a headphone jack, RS-232 and RS-485 (DB9) COM ports, HDMI 2.0, and optional Wi-Fi/BT 5.0. A wide +12~24V lockable DC input and fanless operation make the SID-21WR2 a durable, low-maintenance large-format interactive display.
Key Features
- 21.5" Full-HD (1920x1080) TFT PCAP 10-point multi-touch panel PC, fanless
- Rockchip RK3568 Arm quad-core Cortex-A55, up to 2.0GHz
- 2GB DDR4, 32GB eMMC
- Mali-G52 GPU (OpenGL ES 3.2, Vulkan 1.1, OpenCL 2.0)
- Android 11 / Debian 11
- Realtek Gigabit LAN, 2x USB 3.0, RS-232 + RS-485 (DB9), HDMI 2.0
- Optional Wi-Fi 802.11ac / BT 5.0
- Metal construction, front panel IP65
- Wide +12 ~ +24V lockable DC input, fanless; CE / FCC Class B
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 | 2 x 4Ω 2W (Optional) |
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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 | 30 ms |
| 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 (AT 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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Ordering Information
| Ordering Information | SID-21WR2-6803-A1R : SID-21WR2 DC In, Android 11 |
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