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SID‑21WR2

SID-21WR2 FrontSID-21WR2 FrontSID-21WR2 FrontSID-21WR2 Front
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Data Sheet

*Price on request. Contact us for a quote.

Manufacturer: Avalue

Product 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

Product Description

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.

Technical Specifications

System Information

Processor

Rockchip RK3568 Arm Quad Cortex-A55, up to 2.0GHz

System Memory

2GB DDR4

Storage

Storage

32GB eMMC

Display

Graphic Chipset

Mali-G52 support OpenGL ES 1.1/2.0/3.2, Vulkan 1.0/1.1, OpenCL 2.0

Audio

Speaker Output

Optional 2 x 4Ω 2W

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

Certification

Certification Information

CE, FCC Class B

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

SID-21WR2-6803-A1R : SID-21WR2 DC In, Android 11

What is SID‑21WR2?

The SID‑21WR2 is a panel pc / monitor / mobile manufactured by Avalue, designed specifically for arm-based-panel-pc applications. 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 & Benefits

  • 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

Applications & Use Cases

The SID‑21WR2 is ideal for various industrial automation applications:

  • Dust-sensitive environments and silent operation requirements
  • Extreme temperature environments and outdoor installations
  • Interactive control interfaces and operator panels
  • Memory-intensive applications and multitasking
  • Interactive kiosk and self-service terminals
  • Factory automation and industrial control
  • Industrial control and monitoring systems
  • Digital signage and information display

Frequently Asked Questions