What are the key features of the ARC-21W42 Panel PC?

The ARC-21W42 is a 21.5" Full HD (1920x1080) fanless industrial touch panel PC with 13th Gen Intel Raptor Lake-PS Core 3/5/7 (LGA1700, HID-2340 SBC), 1 x DDR5 4800 SO-DIMM up to 32GB, 10-point PCAP touch, onboard TPM 2.0, dual 2.5GbE (I225LM + I226LM), M.2 (Key-B/E/M) + 80-pin IET expansion, and wide +12~24V input.

Which processors does the ARC-21W42 support?

It supports 13th Gen Intel Raptor Lake-PS Core 3 100UL, Core 5 120UL, and Core 7 160UL (up to 5.20 GHz) on the LGA1700 socket — high single-thread performance for responsive HMI.

What display and touch does the ARC-21W42 offer?

It has a 21.5" 16:9 Full HD (1920x1080) LED panel at 250 cd/m², 1000:1 contrast, 89° viewing angles, with projected-capacitive 10-point multi-touch (89% transmission, EETI controller).

How much memory does the ARC-21W42 support?

It has a single 262-pin SO-DIMM socket supporting up to 32GB DDR5 4800MHz.

What networking does the ARC-21W42 provide?

It includes dual 2.5GbE via Intel I225LM and I226LM controllers (10/100/1000/2.5G), suited to high-speed industrial networking and redundancy.

What expansion does the ARC-21W42 offer?

It provides an M.2 Key-B (PCIe/USB3/SATA) for 4G/5G or capture cards, an M.2 Key-E 2230 for Wi-Fi, an M.2 Key-M 2280 (PCIe x4) for storage, and an 80-pin IET interface for modular I/O.

Does the ARC-21W42 support 5G or capture cards?

Yes. Its M.2 Key-B 3042/3052/2280 slot supports 4G/5G modules or capture cards, useful for connected signage, vision, and remote-monitoring applications.

Is the ARC-21W42 fanless?

Yes, it uses a fanless heatsink design for reliability and dust resistance in continuous industrial operation.

What power input does the ARC-21W42 use?

It accepts a wide +12V ~ +24V DC input via a lockable DC jack (default) or optional phoenix connector, with ATX power management (ACPI 3.0).

What applications is the ARC-21W42 best suited for?

With a large 21.5" Full HD multi-touch display, 13th Gen Core performance, dual 2.5GbE, 5G/capture and IET expansion, it suits factory HMI, SCADA, machine vision front-ends, retail, and control-room visualization.

What is an Industrial Panel PC?

An Industrial Panel PC is a robust computing device designed for industrial environments, featuring a touchscreen display integrated with a computer. These systems are built to withstand harsh conditions including dust, moisture, temperature extremes, and vibration, while providing reliable operation for factory automation, control systems, and HMI applications.

What makes a Panel PC 'industrial grade'?

Industrial grade Panel PCs feature rugged construction with IP65/IP66 front panel protection, extended temperature operation, shock and vibration resistance, fanless cooling for reliability, wide voltage input tolerance, and long product lifecycles designed for 24/7 operation in challenging environments.

What is the difference between a Panel PC and an HMI?

While both provide operator interface functionality, a Panel PC is a full-featured computer running a standard operating system (Windows, Linux) that can host any software application. An HMI is typically a simpler device with an embedded operating system designed specifically for machine/process control with limited functionality beyond its control software.

What mounting options are available for Panel PCs?

Panel PCs typically offer multiple mounting options including panel mount (cutout installation in cabinets/enclosures), VESA mount (standard bracket mounting to walls or arms), and sometimes desktop stands. Some specialized models may offer additional mounting options for specific industries.

What operating systems are supported on industrial Panel PCs?

Most industrial Panel PCs support Windows 10 IoT Enterprise, Windows 11 Pro, and various Linux distributions like Ubuntu. The specific OS support depends on the hardware configuration, with some models offering pre-installed options or being compatible with multiple operating systems.

What is IP65/IP66 protection and why is it important?

IP65/IP66 protection ratings indicate dust-tight (6) protection and resistance to water jets (5/6). This is essential for industrial Panel PCs that may be exposed to harsh factory environments with dust, splashes, or washdown procedures, ensuring reliable operation and longevity in challenging conditions.

Why are fanless designs important in industrial Panel PCs?

Fanless designs eliminate moving parts that could fail, prevent dust and contaminant ingress through ventilation openings, reduce maintenance requirements, increase reliability in high-vibration environments, and allow sealed enclosures for protection against harsh industrial conditions.

What is PCAP multi-touch technology?

PCAP (Projected Capacitive) multi-touch technology allows multiple simultaneous touch points on the screen, enabling intuitive gestures like pinch-to-zoom. It offers better optical clarity than resistive touchscreens, with a durable glass surface resistant to scratches, though it requires bare finger or special stylus operation.

What is a watchdog timer and why is it important?

A watchdog timer is a hardware-based timer that triggers a system reset if the software becomes unresponsive. This is crucial for industrial systems requiring high reliability and 24/7 operation, as it automatically recovers from software crashes or freezes without human intervention.

What does wide voltage input range mean for Panel PCs?

A wide voltage input range (typically 9-36VDC) allows Panel PCs to operate reliably in industrial environments with fluctuating power conditions. This provides flexibility in power source options and protection against voltage spikes and drops common in factory settings.

What is TPM and why is it included in industrial Panel PCs?

TPM (Trusted Platform Module) is a security chip that provides hardware-based encryption capabilities and secure storage for authentication credentials. In industrial settings, it helps protect sensitive data, secure communication channels, and ensure the integrity of control systems against unauthorized access.

How are Panel PCs typically mounted in industrial environments?

Panel PCs are typically installed using panel mount (where the unit is fitted into a cutout in a control cabinet with mounting clips or screws), VESA mount (attached to arms or wall mounts using standardized mounting patterns), or sometimes with custom mounting solutions for specific applications.

What cutout dimensions are needed for panel mounting?

Cutout dimensions vary by model and screen size. It's essential to refer to the specific Panel PC's installation guide for precise measurements. Most manufacturers provide detailed dimensional drawings showing the exact cutout size and mounting hole positions required.

What environmental conditions should be considered when installing Panel PCs?

Consider operating temperature range, humidity levels, exposure to dust or liquids, vibration/shock conditions, available power supply stability, electromagnetic interference sources, and ambient light conditions that might affect screen visibility when installing Panel PCs.

Do Panel PCs require additional cooling?

Most industrial Panel PCs are designed with fanless cooling systems that dissipate heat through the chassis. While they typically don't require additional cooling, it's important to ensure adequate air circulation around the unit and to avoid installing them in locations that exceed their specified operating temperature range.

What power supply requirements should be considered for Panel PCs?

Consider voltage requirements (typically 9-36VDC), current/power consumption specifications, power supply stability, surge protection needs, and whether battery backup or uninterruptible power supply (UPS) is necessary for critical applications to prevent data loss during power interruptions.

What should I do if the touchscreen becomes unresponsive?

First, try restarting the Panel PC. If the issue persists, check if the touch driver is installed and functioning properly, verify the touchscreen cable connection, ensure the operating environment is within specifications (especially for capacitive screens in high humidity), and check for physical damage to the screen surface.

How can I resolve overheating issues with fanless Panel PCs?

To address overheating: ensure the Panel PC is installed with adequate clearance for passive cooling, check that the ambient temperature is within specified operating range, clean dust buildup on cooling fins/chassis, verify that CPU-intensive applications aren't causing excessive load, and consider adding external cooling to the enclosure if necessary.

What causes Panel PCs to restart unexpectedly?

Unexpected restarts can be caused by unstable power supply, overheating, hardware failures, software issues, or watchdog timer activations due to system hangs. Check power stability, environmental conditions, system logs for error messages, and consider disabling the watchdog timer temporarily for diagnostic purposes.

How can I improve the visibility of the Panel PC screen in bright environments?

To improve visibility in bright environments, adjust the screen brightness to maximum, install an anti-glare shield or hood, position the Panel PC to avoid direct light sources, consider a higher-brightness model (500+ cd/m²) for new installations, or apply an anti-reflective film designed for industrial displays.

What should I do if Windows fails to boot on my Panel PC?

If Windows fails to boot, try booting in Safe Mode, use System Restore to revert to a working state, run startup repair from recovery options, check for hardware issues (particularly storage drives), verify BIOS/UEFI settings are correct, or restore from a system image backup if available.

Avalue · Panel PC / Monitor / Mobile

ARC-21W42

Data Sheet

*Price on request. Contact us for a quote.

Manufacturer: Avalue

Highlights

21.5" Full HD (1920x1080) PCAP 10-point multi-touch, fanless
13th Gen Intel Raptor Lake-PS Core 3/5/7 (LGA1700, HID-2340 SBC)
1 x DDR5 4800MHz SO-DIMM, up to 32GB
Onboard TPM 2.0 (NuvoTon NPCT754)
Dual 2.5GbE: Intel I225LM + Intel I226LM
M.2 Key-B (4G/5G/capture) + Key-E (Wi-Fi) + Key-M NVMe + 80-pin IET
USB 3.2; RS-232/422/485; 2 x 2W speakers
Wide +12V ~ +24V input
CE / FCC Class A / VCCI; Windows / Linux

Product Description

The Avalue ARC-21W42 is a 21.5" Full HD fanless industrial touch panel PC powered by 13th Gen Intel Raptor Lake-PS Core 3/5/7 processors (LGA1700), delivering high single-thread performance up to 5.20 GHz for demanding HMI and visualization.

A single DDR5 4800MHz SO-DIMM supports up to 32GB, with onboard TPM 2.0 on the HID-2340 SBC.

The 1920x1080 panel offers 250 cd/m² brightness and 10-point projected-capacitive touch (EETI).

Connectivity includes dual 2.5GbE (Intel I225LM + I226LM), USB 3.2, RS-232/422/485, an M.2 Key-B for 4G/5G or capture cards, M.2 Key-E for Wi-Fi, an M.2 Key-M NVMe slot, and an 80-pin IET expansion interface.

A wide +12~24V input and CE/FCC/VCCI certification make it well suited to factory, retail, and control-room HMI on Windows or Linux.

Technical Specifications

Processor

Intel® 13th Gen Raptor Lake-PS Core™ 3/5/7 Processor

(LGA1700 Socket Type)

Intel® Core™ 3 processor 100UL (10M Cache, up to 4.50 GHz)

Intel® Core™ 5 processor 120UL (12M Cache, up to 4.60 GHz)

Intel® Core™ 7 processor 160UL (12M Cache, up to 5.20 GHz)

System Memory

1 x 262-pin SODIMM socket max. up to 32GB DDR5 4800MHz

I/O Chipset

EC ITE IT5782VG

Watchdog Timer

H/W reset, 1sec. ~ 65535min. and 1sec. or 1min./step

H/W Status Monitor

Monitoring CPU & system temperature and voltage

TPM

Onboard NuvoTon NPCT754AABYX support TPM 2.0

SBC

HID-2340 SBC

CPU Cooler (Type)

Fanless heatsink

Other

7 x Knockouts for antenna mounting

*5 from rear cover + 2 from IET bracket

Expansion

1 x M.2 Key B 3042/3052/2280 (PCIe, USB3, SATA) for

4G/5G/Capture Card

1 x M.2 Key E 2230 (PCIex1, USB2.0) for WIFI

1 x M.2 Key M 2280 (PCI-e x4) slot for storage

1 x 80-pin IET interface

Storage

1 x M.2 Key M 2280 (PCI-e x4) slot for storage)

Graphic Chipset

Intel® Raptor Lake-PS integrated graphics

Spec. & Resolution

HDMI: Max. Resolution 4096x2160 @ 24Hz (optional by IET module)

Audio Codec

Realtek ALC888S

Speaker Output

2 x 2W

LAN Chipset

1 x Intel® I225LM 2.5 Gigabit Ethernet

1 x Intel® I226LM 2.5 Gigabit Ethernet

Ethernet Interface

Intel® I225LM: 10/100/1000/2.5G Base-Tx GbE compatible

Intel® I226LM: 10/100/1000/2.5G Base-Tx GbE compatible

DC Input

+12V ~ +24V

DC Input Connector

Lockable DC Jack (default)

Optional for phoenix connector

ACPI

Single power ATX support S0, S3, S4, S5 and ACPI 3.0 compliant

OS

Win10 / Win11 / Linux

Certification Information

CE / FCC Class A / VCCI

LCD Size

21.5", 16:9

Display Type

FHD

Resolution

1920 x 1080

Pixel pitch

247.95um(H) x 247.95um(V)

Luminance

250 cd/m2

Contrast ratio

1000

Viewing angle

89 (U), 89 (D), 89 (L), 89 (R)

Response time

14 ms

Backlight

LED

Touch Type

Projective capacitive multi-touch up to 10 points

Touch Light Transmission

89%

Touch Controller

USB touch (EETI)

USB Port

3 x USB3.2, 1 x USB2.0, 1 x USB Type C

LAN Port

2 x RJ-45

COM Port

1 x RS-232/422/485

LED Indicator

HDD LED, power LED

Operating Temp.

-10°C ~ 50°C (14°F ~ 122°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)

538.05 x 341.05 x 64mm

Weight

7.3 Kg

Vibration Test

With SSD/M.2 SSD : 2Grms, IEC 60068-2-64, random, 5 ~ 500Hz, 30mins/axis

Shock Test

Operating with SSD/M.2 : MIL-STD-810G, method 516.6, procedure I, functional shock=20G

Drop Test

ISTA 2A, IEC-60068-2-32 Test:Ed

IP Rating

Front panel IP65

Back cover IP41(except I/O)

Mounting Kit

Wall / Stand / VESA 75mm x 75mm, 100mm x 100mm

Panel mount with mounting kits

Power Mode

AT/ATX (ATX is default)

System Fan

Fanless

Construction - Front

Die casting with cover lens

Construction - Rear

Black die casting

Adapter

Input: 100-240V~,2.0A, 50-60Hz

Output: 120W adapter (AC/DC adapter 24V/5A 120W, Screw Type)

Ordering Information

ARC-21W42-100-B1R | 21.5" 1920x1080 Industrial Touch Panel PC, ErP Design, PCAP Multi Touch(ALC888S), 13th Gen Core™ 3 processor 100UL (10M Cache, up to 4.50 GHz)/2GLAN/1COM/4USB/TypeC/SPK/12~24V input/12V Adapter

ARC-21W42-120-B1R | 21.5" 1920x1080 Industrial Touch Panel PC, ErP Design, PCAP Multi Touch(ALC888S), 13th Gen Core™ 5 processor 120UL (12M Cache, up to 4.60 GHz)/2GLAN/1COM/4USB/TypeC/SPK/12~24V input/12V Adapter

ARC-21W42-160-B1R | 21.5" 1920x1080 Industrial Touch Panel PC, ErP Design, PCAP Multi Touch(ALC888S), 13th Gen Core™ 7 processor 160UL (12M Cache, up to 5.20 GHz)/2GLAN/1COM/4USB/TypeC/SPK/12~24V input/12V Adapter, Optional IET Module list:

ACC-ARC-USB-01R | 4 x USB 3.0 IET module for ARC-1535/38

ACC-ARC-AUDIO-01R | HDMI + 5.1 CH audio IET module for ARC-1535/38

ACC-ARC-MPCIE-02R | HDMI + MPCIE w/SIM IET module for ARC-1535/38

ACC-ARC-COM-01R | 2 x Isolated RS-232 IET module for ARC-1535/38

ACC-ARC-COM-02R | 3 x RS-232 IET module for ARC-1535/38

ACC-ARC-COM-03R | 2 x RS-232 + USB IET module for ARC-1535/38

ACC-ARC-COM-04R | 2 x RS-232 + LAN IET module for ARC-1535/38

ACC-ARC-GPIO-01R | 12-bit GPIO + 2-pin CAN bus IET module for ARC-1535/38

ACC-ARC-OBDII-01R | OBDII - CAN bus IET module for ARC-1535/38 (OBDII/EOBD for small vehicle)

ACC-ARC-OBDII-02R | OBDII - CAN bus IET module for ARC-1535/38 (J1939J1708 for large vehicle)

ACC-ARC-OBDII-03R | OBDII - CAN bus IET module for ARC-1535/38 (ISO15765-4 for special large vehicle)

E1702031833R | USA Power Cord

E1702031000R | EU Power Cord

E1702031834R | Japan Power Cord

E1702031830R | UK Power Cord

E1702031831R | Australia Power Cord

What is ARC-21W42?

The ARC-21W42 is a panel pc / monitor / mobile manufactured by Avalue, designed specifically for industrial-panel-pc applications. The Avalue ARC-21W42 is a 21.5" Full HD fanless industrial touch panel PC powered by 13th Gen Intel Raptor Lake-PS Core 3/5/7 processors (LGA1700), delivering high single-thread performance up to 5.20 GHz for demanding HMI and visualization. A single DDR5 4800MHz SO-DIMM supports up to 32GB, with onboard TPM 2.0 on the HID-2340 SBC. The 1920x1080 panel offers 250 cd/m² brightness and 10-point projected-capacitive touch (EETI). Connectivity includes dual 2.5GbE (Intel I225LM + I226LM), USB 3.2, RS-232/422/485, an M.2 Key-B for 4G/5G or capture cards, M.2 Key-E for Wi-Fi, an M.2 Key-M NVMe slot, and an 80-pin IET expansion interface. A wide +12~24V input and CE/FCC/VCCI certification make it well suited to factory, retail, and control-room HMI on Windows or Linux.

Key Features & Benefits

21.5" Full HD (1920x1080) PCAP 10-point multi-touch, fanless
13th Gen Intel Raptor Lake-PS Core 3/5/7 (LGA1700, HID-2340 SBC)
1 x DDR5 4800MHz SO-DIMM, up to 32GB
Onboard TPM 2.0 (NuvoTon NPCT754)
Dual 2.5GbE: Intel I225LM + Intel I226LM
M.2 Key-B (4G/5G/capture) + Key-E (Wi-Fi) + Key-M NVMe + 80-pin IET
USB 3.2; RS-232/422/485; 2 x 2W speakers
Wide +12V ~ +24V input
CE / FCC Class A / VCCI; Windows / Linux

Applications & Use Cases

The ARC-21W42 is ideal for various industrial automation applications:

Dust-sensitive environments and silent operation requirements
DC-powered industrial installations and mobile applications
Wireless connectivity and remote monitoring applications
Legacy equipment integration and serial communication
High-performance computing and data processing tasks
Interactive control interfaces and operator panels
Peripheral device connectivity and data transfer
Memory-intensive applications and multitasking

Highlights

Product Description

Technical Specifications

System Information

Processor

System Memory

I/O Chipset

Watchdog Timer

H/W Status Monitor

TPM

SBC

CPU Cooler (Type)

Other

Expansion

Expansion

Storage

Storage

Display

Graphic Chipset

Spec. & Resolution

Audio

Audio Codec

Speaker Output

Ethernet

LAN Chipset

Ethernet Interface

Power Requirement

DC Input

DC Input Connector

ACPI

Software Support

OS

Certification

Certification Information

Panel

LCD Size

Display Type

Resolution

Pixel pitch

Luminance

Contrast ratio

Viewing angle

Response time

Backlight

Touch Type

Touch Light Transmission

Touch Controller

External I/O

USB Port

LAN Port

COM Port

System Control

LED Indicator

Mechanical & Environmental

Operating Temp.

Storage Temp.

Operating Humidity

Dimension (W x L x H)

Weight

Vibration Test

Shock Test

Drop Test

IP Rating

Mounting Kit

Power Mode

System Fan

Construction - Front

Construction - Rear

Component

Adapter

Ordering Information

Ordering Information

What is ARC-21W42?

Key Features & Benefits

Applications & Use Cases

Frequently Asked Questions