What are the key features of the ARC-21W38-C1 Panel PC?

The ARC-21W38-C1 is a 21.5" Full HD (1920x1080) fanless industrial touch panel PC with 11th Gen Intel Core i3/i5/i7 (Tiger Lake, EMX-TGLC-B1 SBC), 2 x DDR4 3200 SO-DIMM up to 64GB, 10-point PCAP touch, onboard TPM 2.0, dual LAN (I219LM GbE + I226LM 2.5GbE), flexible M.2 expansion, and wide +12~24V input.

Which processors does the ARC-21W38-C1 support?

It supports 11th Gen Intel Core (Tiger Lake) — i7-1165G7, i5-1135G7, and i3-1115G4 — non-embedded CPUs delivering strong performance in a fanless design.

What display and touch does the ARC-21W38-C1 offer?

It has a 21.5" 16:9 Full HD (1920x1080) panel at 250 cd/m², 1000:1 contrast, 89° viewing angles, with projected-capacitive 10-point multi-touch (≥85% transmission, ILITEK controller).

How much memory does the ARC-21W38-C1 support?

It has two 260-pin DDR4 3200MHz SO-DIMM sockets supporting up to 64GB max.

What networking does the ARC-21W38-C1 provide?

It includes dual Ethernet: an Intel I219LM Gigabit PHY plus an Intel I226LM 2.5 Gigabit controller, for high-speed and standard network connections.

What expansion and storage does the ARC-21W38-C1 offer?

It provides an M.2 Key-B+M (PCIe/SATA/USB with SIM for WWAN+GNSS), an M.2 Key-E 2230 (Wi-Fi/CNVi), M.2 SATA SSD storage, and reserved space for a future 2.5" drive bay.

Is the ARC-21W38-C1 fanless?

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

Does the ARC-21W38-C1 include hardware security?

Yes, it has an onboard NuvoTon NPCT754AADYX supporting TPM 2.0 for hardware key storage and platform integrity.

What power input does the ARC-21W38-C1 use?

It accepts a wide +12V ~ +24V DC input via a 4-pin Mini-DIN connector, supplied with a 120W (24V @ 5A) adapter, with ATX power management (ACPI 3.0).

What applications is the ARC-21W38-C1 best suited for?

With a large 21.5" Full HD multi-touch display, 11th Gen Core performance, 2.5GbE networking, WWAN option, and broad certification, it suits factory HMI, SCADA, 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-21W38-C1

Data Sheet

*Price on request. Contact us for a quote.

Manufacturer: Avalue

Highlights

21.5" Full HD (1920x1080) PCAP 10-point multi-touch, fanless
11th Gen Intel Core i3/i5/i7 (Tiger Lake, EMX-TGLC-B1 SBC)
2 x DDR4 3200MHz SO-DIMM, up to 64GB
Onboard TPM 2.0 (NuvoTon NPCT754)
Intel I219LM GbE + Intel I226LM 2.5GbE
M.2 Key-B+M (PCIe/SATA/USB, WWAN+GNSS) + M.2 Key-E (Wi-Fi/CNVi)
Multiple USB 3.2 Gen2/Gen1; RS-232/422/485
Wide +12V ~ +24V input, 120W adapter
CE / FCC Class B / UKCA / LVD / VCCI; Windows / Linux

Product Description

The Avalue ARC-21W38-C1 is a 21.5" Full HD widescreen fanless industrial touch panel PC powered by 11th Generation Intel Core i3/i5/i7 (Tiger Lake) processors, pairing strong x86 performance with a large multi-touch display for modern HMI and visualization.

Dual DDR4 3200MHz SO-DIMM sockets support up to 64GB, with onboard TPM 2.0 on the EMX-TGLC-B1 SBC.

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

Connectivity includes Intel I219LM Gigabit and I226LM 2.5GbE, multiple USB 3.2 ports, RS-232/422/485 COM, and a flexible M.2 Key-B+M (PCIe/SATA/USB, WWAN+GNSS SIM) plus M.2 Key-E (Wi-Fi/CNVi).

A wide +12~24V input with a 120W adapter and broad CE/FCC/UKCA/LVD/VCCI certification make it well suited to factory, retail, and control-room HMI on Windows or Linux.

Technical Specifications

Processor

11th Generation Intel® Core™ i3/i5/i7 Processors (Non-embedded CPU)

Intel® Core™ i7-1165G7 Processor, 12M Cache, up to 2.80 GHz

Intel® Core™ i5-1135G7 Processor, 8M Cache, up to 2.40 GHz

Intel® Core™ i3-1115G4 Processor, 6M Cache, up to 3.00 GHz

System Memory

2 x 260-pin DDR4 3200 MHz SO-DIMM socket, supports up to 64GB max

I/O Chipset

NuvoTon_NCT6126D

Watchdog Timer

H/W Reset, 1sec. – 65535sec./min.1sec. or 1min. step

H/W Status Monitor

Monitoring CPU & system temperature and voltage

TPM

Onboard NuvoTon NPCT754AADYX support TPM 2.0

SBC

EMX-TGLC-B1

CPU Cooler (Type)

Fanless heatsink

Other

AUX-089 (SIM card expansion card)

Expansion

1 x M.2 Key B+M 3042/3052/2242/2260/2280 support 1xPCIEx1/SATA/USB3.0/USB2.0 with 1 x SIM card slot, support WWAN+GNSS

1 x M.2 Key E 2230 support WiFi module and CNVi (1 x PCI-e x1 & USB 2.0 signal)

Storage

M.2 type B 3042/3052/2242/2260/2280 SSD (SATA)

Other Storage Device

Reserve space for future1 x 2.5 drive Bay design

Audio Codec

Realtek ALC897 co-lay ALC888S (Default: ALC897)

Speaker Output

2 x 5W

LAN Chipset

1 x Intel® I219LM Gigabit Ethernet PHY (LAN1)

1 x Intel® I226LM 2.5 Gigabit Ethernet (LAN2)

Ethernet Interface

Intel® I219LM : 10/100/1000 Base-Tx GbE compatible

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

DC Input

+12V ~ +24V

DC Input Connector

Mini-DIN 4pin DC-in

Adapter

Input: 100~240Vac / 50~60Hz

Output: 120W adapter (24V @ 5A)

ACPI

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

OS

Win10 / Win11 / Linux

Certification Information

CE/ FCC Class B/ UKCA / LVD / VCCI

LCD Size

21.5", 16:9

Display Type

Full HD

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

20 ms

Backlight

TFT-LCD

Touch Type

Projective capacitive multi-touch up to 10 points

Touch Light Transmission

>=85%

Touch Controller

ILITEK ICI2322

USB Port

3 x USB3.2 Gen2, 1 x USB3.2 Gen1

3 x RS232 or GPIO or USB2.0 (optional)

LAN Port

2 x RJ-45

COM Port

1 x RS232/422/485(default)

2 x RS232 (default)

3 x RS232 or GPIO or USB2.0 (optional)

Display Port

2 x DP++: 1920 x 1080@60 Hz

Antenna

2 x Antenna Mounting with Dust Cover

4 x Antenna Mounting with Dust Cover for 5G

LED Indicator

HDD LED, power LED

WLAN

IEEE802.11 ac/a/b/g/n 2.4 GHz, 5 GHz (optional)

Bluetooth

BT5.1 (optional)

Operating Temp.

0°C ~ 50°C (32°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 63.55mm

Weight

10.1 Kg

Vibration Test

With SSD/M.2 SSD : 1.5Grms, IEC 60068-2-64, random, 5 ~ 500Hz, 30min/axis

Shock Test

Operating with SSD/M.2 SATA : IEC 60068-2-27 testing procedures, 10G for operation mode

Drop Test

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

IP Rating

Front panel IP65

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 ~ 240Vac/ 50 ~ 60Hz

Output: 120W adapter (24V @ 5A adapter)

Ordering Information

ARC-21W38-3G4-C2R | ARC-21W38 w/i3-1115G4/PCAP/3COM/4USB/2LAN/2DP/Barebone, w/o Memory/storage/Kit

ARC-21W38-5G7-C2R | ARC-21W38 w/i5-1135G7/PCAP/3COM/4USB/2LAN/2DP/Barebone, w/o Memory/storage/Kit

ARC-21W38-7G7-C2R | ARC-21W38 w/i7-1165G7/PCAP/3COM/4USB/2LAN/2DP/Barebone, w/o Memory/storage/Kit

C971XAR38C1000R | Intel AX210 WIFI6 M.2 2230 A-Key kit

C971XAR38C1001R | Intel8265NGW M.2 2230 NGFF BT4.2 kit

C971XAR38C1002R | Wifi 802.11 ac/a/b/g/n,2T2R, BT5.1 kit

C971XAR38C1003R | 4G LTE Module, SIM7600G-H-M2, SIMCOM

C971XAR38C1004R | SIMCOM, SIM8202G(USB3.0)

C971XAR38C1005R | COM Kit for ARC-1738-C1

C971XAR38C1006R | USB Kit for ARC-1738-C1

C971XAR38C1007R | GPIO Kit for ARC-1738-C1

C170P060040R | US Power Cord SM001/3P+SM006/3P 1.83M

C170P060050R | EU Power Cord SH005/3P+SH006/3P 1.83M

C170P060060R | JP Power Cord SH001/3P+SH006/3P 1.83M

C170P060070R | UK Power Cord YP61A/3P+YC12/3P 1.83M

C170P060080R | AU Power Cord SH051/3P+SH006/3P 1.83M

What is ARC-21W38-C1?

The ARC-21W38-C1 is a panel pc / monitor / mobile manufactured by Avalue, designed specifically for industrial-panel-pc applications. The Avalue ARC-21W38-C1 is a 21.5" Full HD widescreen fanless industrial touch panel PC powered by 11th Generation Intel Core i3/i5/i7 (Tiger Lake) processors, pairing strong x86 performance with a large multi-touch display for modern HMI and visualization. Dual DDR4 3200MHz SO-DIMM sockets support up to 64GB, with onboard TPM 2.0 on the EMX-TGLC-B1 SBC. The 1920x1080 panel offers 250 cd/m² brightness and 10-point projected-capacitive touch. Connectivity includes Intel I219LM Gigabit and I226LM 2.5GbE, multiple USB 3.2 ports, RS-232/422/485 COM, and a flexible M.2 Key-B+M (PCIe/SATA/USB, WWAN+GNSS SIM) plus M.2 Key-E (Wi-Fi/CNVi). A wide +12~24V input with a 120W adapter and broad CE/FCC/UKCA/LVD/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
11th Gen Intel Core i3/i5/i7 (Tiger Lake, EMX-TGLC-B1 SBC)
2 x DDR4 3200MHz SO-DIMM, up to 64GB
Onboard TPM 2.0 (NuvoTon NPCT754)
Intel I219LM GbE + Intel I226LM 2.5GbE
M.2 Key-B+M (PCIe/SATA/USB, WWAN+GNSS) + M.2 Key-E (Wi-Fi/CNVi)
Multiple USB 3.2 Gen2/Gen1; RS-232/422/485
Wide +12V ~ +24V input, 120W adapter
CE / FCC Class B / UKCA / LVD / VCCI; Windows / Linux

Applications & Use Cases

The ARC-21W38-C1 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

Other Storage Device

Audio

Audio Codec

Speaker Output

Ethernet

LAN Chipset

Ethernet Interface

Power Requirement

DC Input

DC Input Connector

Adapter

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

Display Port

Antenna

System Control

LED Indicator

Data Communication

WLAN

Bluetooth

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-21W38-C1?

Key Features & Benefits

Applications & Use Cases

Frequently Asked Questions