ODM industrial panel PC · 21.5″ Full HD · 8-in/8-out GPIO · MODBUS · IP65
EPC-W2122B 21.5-inch Panel PC with 8-in / 8-out Digital I/O and MODBUS
21.5″ 1920 × 1080 · IP65 front · 12th Gen Core i3-1215U · 2× Intel LAN · 6.66 kg
Eight inputs and eight outputs, on the panel itself. The EPC-W2122B is a 21.5-inch Full HD panel PC that reads and switches field signals itself — 8-in / 8-out digital I/O, MODBUS compatible, with 24V, 12V or 5V levels configurable per project — so a machine with a handful of sensors and valves does not need a separate PLC beside it. Behind the IP65 front: 12th Gen Core i3/i5/i7, DDR5 up to 32GB and two M.2 SSDs.

8-in / 8-out GPIOMODBUS compatible24V / 12V / 5V levels21.5″ 1920 × 108012th Gen Core i3/i5/i7IP65 front
17+
Years
50+
Countries
1
MOQ unit
2–4
Weeks lead
OEM
ODM & branding
At a glance
EPC-W2122B key specifications
The panel, the touchscreen, the compute, the ports and the mechanical fit — everything that decides whether this panel drops into your cutout.
Panel size
21.5″ 16:9
Resolution
1920 × 1080
Brightness
300 cd/m² · 500 : 1
Touch
Projected capacitive touch (resistive 5-wire optional)
Processor
Intel® Core™ 12th Gen i3-1215U
Memory
8~32GB DDR5
Storage
2 × M.2 SSD
Serial
3× RS232 + 2× RS485 (DB9)
USB
2× USB 2.0 (Type-A) + 4× USB 3.0 (Type-A)
Ethernet
2× Intel I210 Gigabit LAN
Display
1× HDMI + 1× VGA (dual display)
Protection
IP65 · Fanless — LEGO MODE board-to-board design
Design notes
Why the GPIO block is inside the panel

Eight inputs and eight outputs switched by the panel itself
The GPIO block is the reason to choose this model. The EPC-W2122B carries 8 digital inputs and 8 digital outputs on the panel, MODBUS compatible, with the signal level configurable as 24V, 12V or 5V to match the machine it is going into. That is enough to read end-of-travel switches, a guard door, a float or a counter and to drive lamps, relays, solenoids or a stack light — without a PLC in the cabinet and without a second cable run to one. For a machine builder that is a shorter bill of materials and one less device to program.
- 8-in / 8-out digital I/O built into the panel
- MODBUS compatible — read and write from the HMI
- 24V / 12V / 5V signal levels configurable per project
- No separate PLC for a handful of sensors and valves
- Shorter bill of materials and less wiring in the cabinet
LEGO MODE: board-to-board, so the panel follows the machine
The EPC-W2122B is built on the LEGO MODE board-to-board design, with customizable function cards and i-Door access, which is what makes the same panel adaptable rather than fixed. Function cards are chosen for the interfaces a machine actually uses; a different card set answers a different machine on the same chassis, cutout and display. The boards connect directly instead of through ribbon cables, which is what keeps the assembly stable in a cabinet that vibrates.
- LEGO MODE board-to-board architecture
- Customizable function cards for the interfaces your machine uses
- i-Door access for service on the boards
- Same chassis, cutout and display across configurations
- Direct board-to-board connection — no ribbon cables to work loose


21.5-inch Full HD on 12th Gen Core and DDR5
The display is a 21.5-inch TFT LCD at 1920 × 1080 (16:9), 300 cd/m² at 500:1 with an LED backlight and projected-capacitive touch (resistive 5-wire on request). The chassis measures 534.6 × 326.1 × 75.1 mm with a cutout of 516.6 × 308.1 mm and weighs 6.66 kg. Inside is the Intel® Core™ 12th Gen platform on DDR5 memory up to 32GB with two M.2 SSDs and two Intel I210 Gigabit LAN ports — fanless, at 12V DC.
- 21.5-inch TFT LCD at 1920 × 1080, 300 cd/m², 500:1, projected capacitive touch
- 12th Gen Core i3-1215U / i5-1235U / i7-1250U with DDR5 up to 32GB
- 2× M.2 SSD, 2× Intel I210 Gigabit LAN, 4× USB 3.0 + 2× USB 2.0
- 534.6 × 326.1 × 75.1 mm, cutout 516.6 × 308.1 mm, 6.66 kg
- 12V DC pluggable terminal (9~36V optional), fanless, IP65 front
Configurations
Choose the EPC-W2122B configuration
Three factory builds on one panel. The display, the touchscreen, the ports, the cutout and the mounting are identical across all three — only the processor and the standard memory change.

Intel® Core™ i3-1215U
Entry · 12th Gen i3
Best forMachines that need the GPIO block more than they need processing power — reading switches, driving lamps and relays, with the HMI on a 21.5-inch screen.
Part number EPC-W2122B — standard build: 8GB memory, SSD 256GB.
System core
| Processor | Intel® Core™ i3-1215U |
| Memory | 8GB (DDR5, up to 32GB) |
| Storage | SSD 256GB |
| Storage slots | 2 × M.2 SSD |
| Cooling | Fanless — LEGO MODE board-to-board design |
| Operating system | Windows 10 / Windows 11 · Linux Ubuntu 16.04 / 18.04 / 20.04 / 22.04 |
Panel & touch
| Panel size | 21.5-inch TFT LCD, 16:9 |
| Max. resolution | 1920 × 1080 |
| Brightness | 300 cd/m² |
| Contrast | 500 : 1 |
| Backlight | LED, 50,000 hours |
| Touch panel | Projected capacitive touch (resistive 5-wire optional) |
| Front protection | Front panel IP65 compliant |
I/O & networking
| USB 3.0 | 4× USB 3.0 (Type-A) |
| USB 2.0 | 2× USB 2.0 (Type-A) |
| COM | 3× RS232 + 2× RS485 (DB9) |
| Display | 1× HDMI + 1× VGA (dual display) |
| Audio | 1× audio, 3.5 mm TRRS |
| Ethernet | 2× Intel I210 Gigabit LAN |
| GPIO | 8-in / 8-out digital I/O, MODBUS compatible, 24V / 12V / 5V configurable |
Expansion & wireless
| Wi-Fi | Intel N6235 300 Mbps, 802.11a/b/g/n, 2.4G / 5G |
| Wireless network | 4G LTE full netcom module (optional) |
| Clear CMOS | 1× Clear CMOS switch |
Power
| DC input | 1× 3-pin pluggable terminal block, 12V DC (9~36V DC optional) |
| Power button | 1× ATX power on/off button |
| Booting | 1× AT/ATX mode switch (internal) |
Environmental
| Operating temperature | 0~50℃ (-40~70℃ optional) |
| Storage temperature | -10~60℃ |
| Relative humidity | 10%~90%, non-condensing |
| EMC | CE, FCC (EN 55032 & EN 55035), EN IEC 61000-3-2 |
| Factory | ISO 9001:2015 |
| MTBF | 60,000 hours |
Mechanical & compliance
| Dimension | 534.6 (W) × 326.1 (D) × 75.1 (H) mm |
| Cutout size | 516.6 × 308.1 mm |
| Weight | 6.66 KG N.W. |
| Material | 6063 high-strength aluminium alloy |
| Construction | Aluminium extrusion + sheet metal structure |
| Mounting | Wall mount / VESA mount |
| Certifications | CE / FCC, according to EN 55032 & EN 55035 |
| ODM | BIOS / Boot on LOGO / OEM |

Intel® Core™ i5-1235U
Balanced · 12th Gen i5
Best forThe usual machine panel: HMI, GPIO block, both network segments and a local data log running together, with room for a second M.2 drive.
Part number EPC-W2122B — standard build: 8GB memory, SSD 256GB.
System core
| Processor | Intel® Core™ i5-1235U |
| Memory | 8GB (DDR5, up to 32GB) |
| Storage | SSD 256GB |
| Storage slots | 2 × M.2 SSD |
| Cooling | Fanless — LEGO MODE board-to-board design |
| Operating system | Windows 10 / Windows 11 · Linux Ubuntu 16.04 / 18.04 / 20.04 / 22.04 |
Panel & touch
| Panel size | 21.5-inch TFT LCD, 16:9 |
| Max. resolution | 1920 × 1080 |
| Brightness | 300 cd/m² |
| Contrast | 500 : 1 |
| Backlight | LED, 50,000 hours |
| Touch panel | Projected capacitive touch (resistive 5-wire optional) |
| Front protection | Front panel IP65 compliant |
I/O & networking
| USB 3.0 | 4× USB 3.0 (Type-A) |
| USB 2.0 | 2× USB 2.0 (Type-A) |
| COM | 3× RS232 + 2× RS485 (DB9) |
| Display | 1× HDMI + 1× VGA (dual display) |
| Audio | 1× audio, 3.5 mm TRRS |
| Ethernet | 2× Intel I210 Gigabit LAN |
| GPIO | 8-in / 8-out digital I/O, MODBUS compatible, 24V / 12V / 5V configurable |
Expansion & wireless
| Wi-Fi | Intel N6235 300 Mbps, 802.11a/b/g/n, 2.4G / 5G |
| Wireless network | 4G LTE full netcom module (optional) |
| Clear CMOS | 1× Clear CMOS switch |
Power
| DC input | 1× 3-pin pluggable terminal block, 12V DC (9~36V DC optional) |
| Power button | 1× ATX power on/off button |
| Booting | 1× AT/ATX mode switch (internal) |
Environmental
| Operating temperature | 0~50℃ (-40~70℃ optional) |
| Storage temperature | -10~60℃ |
| Relative humidity | 10%~90%, non-condensing |
| EMC | CE, FCC (EN 55032 & EN 55035), EN IEC 61000-3-2 |
| Factory | ISO 9001:2015 |
| MTBF | 60,000 hours |
Mechanical & compliance
| Dimension | 534.6 (W) × 326.1 (D) × 75.1 (H) mm |
| Cutout size | 516.6 × 308.1 mm |
| Weight | 6.66 KG N.W. |
| Material | 6063 high-strength aluminium alloy |
| Construction | Aluminium extrusion + sheet metal structure |
| Mounting | Wall mount / VESA mount |
| Certifications | CE / FCC, according to EN 55032 & EN 55035 |
| ODM | BIOS / Boot on LOGO / OEM |

Intel® Core™ i7-1250U
Performance · 12th Gen i7
Best forStations that also process images or hold a database on the same unit, and for ODM builds where several function cards are loaded at once.
Part number EPC-W2122B — standard build: 8GB memory, SSD 256GB.
System core
| Processor | Intel® Core™ i7-1250U |
| Memory | 8GB (DDR5, up to 32GB) |
| Storage | SSD 256GB |
| Storage slots | 2 × M.2 SSD |
| Cooling | Fanless — LEGO MODE board-to-board design |
| Operating system | Windows 10 / Windows 11 · Linux Ubuntu 16.04 / 18.04 / 20.04 / 22.04 |
Panel & touch
| Panel size | 21.5-inch TFT LCD, 16:9 |
| Max. resolution | 1920 × 1080 |
| Brightness | 300 cd/m² |
| Contrast | 500 : 1 |
| Backlight | LED, 50,000 hours |
| Touch panel | Projected capacitive touch (resistive 5-wire optional) |
| Front protection | Front panel IP65 compliant |
I/O & networking
| USB 3.0 | 4× USB 3.0 (Type-A) |
| USB 2.0 | 2× USB 2.0 (Type-A) |
| COM | 3× RS232 + 2× RS485 (DB9) |
| Display | 1× HDMI + 1× VGA (dual display) |
| Audio | 1× audio, 3.5 mm TRRS |
| Ethernet | 2× Intel I210 Gigabit LAN |
| GPIO | 8-in / 8-out digital I/O, MODBUS compatible, 24V / 12V / 5V configurable |
Expansion & wireless
| Wi-Fi | Intel N6235 300 Mbps, 802.11a/b/g/n, 2.4G / 5G |
| Wireless network | 4G LTE full netcom module (optional) |
| Clear CMOS | 1× Clear CMOS switch |
Power
| DC input | 1× 3-pin pluggable terminal block, 12V DC (9~36V DC optional) |
| Power button | 1× ATX power on/off button |
| Booting | 1× AT/ATX mode switch (internal) |
Environmental
| Operating temperature | 0~50℃ (-40~70℃ optional) |
| Storage temperature | -10~60℃ |
| Relative humidity | 10%~90%, non-condensing |
| EMC | CE, FCC (EN 55032 & EN 55035), EN IEC 61000-3-2 |
| Factory | ISO 9001:2015 |
| MTBF | 60,000 hours |
Mechanical & compliance
| Dimension | 534.6 (W) × 326.1 (D) × 75.1 (H) mm |
| Cutout size | 516.6 × 308.1 mm |
| Weight | 6.66 KG N.W. |
| Material | 6063 high-strength aluminium alloy |
| Construction | Aluminium extrusion + sheet metal structure |
| Mounting | Wall mount / VESA mount |
| Certifications | CE / FCC, according to EN 55032 & EN 55035 |
| ODM | BIOS / Boot on LOGO / OEM |
Drawings
Dimensions, cutout and I/O layout
Check the cutout against your cabinet door before ordering — the EPC-W2122B needs 516.6 × 308.1 mm and 75.1 mm of depth behind it.


Ordering information
Configurations and part numbers
Each row is a factory build: the build fixes the processor, the memory and the storage. The panel, the touchscreen, the I/O and the cutout are the same for every row.
| NO. | Model | Product Part Number | Description | Standard Memory | Standard Storage |
|---|---|---|---|---|---|
| 1 | EPC-W2122B | EPC-W2122B | Intel® Core™ i3-1215U Processor | 8GB | SSD 256GB |
| 2 | EPC-W2122B | EPC-W2122B | Intel® Core™ i5-1235U Processor | 8GB | SSD 256GB |
| 3 | EPC-W2122B | EPC-W2122B | Intel® Core™ i7-1250U Processor | 8GB | SSD 256GB |
Contact sales for volume pricing, memory and storage upgrades, the −40–70 ℃ extended temperature build, and 4G / Wi-Fi configuration on the same panel. Rows marked On request are builds whose part number is issued per configuration.
Video
EPC-W2122B video walkthrough
This walkthrough covers the EPC-W2122B — 8DI/8DO GPIO, 21.5″ — the panel, the I/O and how it fits a cabinet cutout.
Downloads
EPC-W2122B downloads
The full specification is available immediately. Manuals, drivers, certificates and drawings are issued with the quotation.
EPC-W2122B datasheet
Panel, touch, I/O, dimensions, cutout and the ordering table (PDF).
Panel PC buying guide
How to size the display, choose the protection rating and specify the cutout.
Industrial PC FAQ
Processor, operating system, mounting and environmental questions.
Manual, drivers & certificates
User manual, driver pack, CE / FCC / BIS certificates, 2D and 3D drawings — issued per order.
FAQ
EPC-W2122B frequently asked questions
Questions about the 8-in / 8-out GPIO block and its signal levels, the LEGO MODE board-to-board design and function cards, the 21.5-inch Full HD panel and its cutout, and the 12th Gen builds with DDR5.
What is the EPC-W2122B?
It is a 21.5-inch Full HD industrial panel PC with 8-in / 8-out digital I/O built into the panel, MODBUS compatible and configurable for 24V, 12V or 5V signal levels. It runs the Intel® Core™ 12th Gen platform with DDR5 memory and two M.2 SSDs, and it mounts in a 516.6 × 308.1 mm cutout behind an IP65 front.
What can the 8-in / 8-out GPIO block actually do?
Eight digital inputs read the state of field devices — end-of-travel switches, a guard door, a float, a counter, a pushbutton — and eight digital outputs drive lamps, relays, solenoids, contactors or a stack light. Because the channels are MODBUS compatible, the HMI or the machine software reads and writes them the same way it talks to any other MODBUS device. For a machine that needs a handful of signals, that removes the separate PLC and the extra wiring run to it.
What signal levels and protocol does the GPIO use?
The channels are configurable for 24V, 12V or 5V so they can match the machine they are wired into, and they are MODBUS compatible, which means the inputs and outputs can be published to the HMI, to a SCADA system or to another controller on the same network. Tell us the levels and the channel count you need and the panel is configured at the factory.
What is LEGO MODE, and what are function cards?
LEGO MODE is the board-to-board architecture this panel is built on: the main board and the interface boards connect directly, and the interfaces the machine needs are supplied as customizable function cards. A different card set answers a different machine on the same chassis, cutout and display, and i-Door gives service access to the boards without dismantling the panel.
What I/O ports does the panel carry?
4× USB 3.0 and 2× USB 2.0 (Type-A), 3× RS232 and 2× RS485 on DB9, 1× HDMI + 1× VGA dual display, one 3.5 mm TRRS audio jack and 2× Intel I210 Gigabit LAN. Wi-Fi is an Intel N6235 module at 300 Mbps (802.11a/b/g/n, 2.4G / 5G) and a 4G LTE full netcom module is available, with a Clear CMOS switch on the panel.
Which 12th Gen processors and how much memory?
Three builds: i3-1215U (6 cores, 1.2~4.4 GHz, 10MB cache, 15W), i5-1235U (10 cores, 1.3~4.4 GHz, 12MB, 15W) and i7-1250U (10 cores, 1.1~4.7 GHz, 12MB, 9W). All three use DDR5 memory up to 32GB and two M.2 SSDs, so the system and the data log can live on separate drives.
What does the panel measure, and what are its mechanical details?
A 21.5-inch TFT LCD at 1920 × 1080 (16:9), 300 cd/m² at 500:1 with an LED backlight rated for 50,000 hours, and projected-capacitive multi-touch (resistive 5-wire available on request). The chassis is 534.6 × 326.1 × 75.1 mm with a cutout of 516.6 × 308.1 mm, weighs 6.66 kg N.W., and is built from 6063 high-strength aluminium alloy extrusion with a sheet-metal structure. It mounts on a wall bracket or a VESA plate, and cooling is completely fanless.
What power, temperature and EMC does it hold?
12V DC on a 3-pin pluggable terminal block, with 9~36V DC available as an option, an ATX power on/off button and an internal AT/ATX mode switch. Operating temperature is 0~50℃ as standard with −40~70℃ available; storage is −10~60℃ and relative humidity 10%~90% non-condensing. EMC is CE and FCC to EN 55032 and EN 55035 plus EN IEC 61000-3-2, the factory is ISO 9001:2015 and MTBF is 60,000 hours.
Which operating systems run on it, and can it be customised?
Windows 10 and Windows 11, or Linux Ubuntu 16.04 / 18.04 / 20.04 / 22.04. ODM services cover a custom BIOS, booting on your own LOGO and OEM branding, on the same hardware and enclosure.
Where is a GPIO panel PC the right choice?
On machines where the signals are modest but the wiring is not: packaging and assembly stations with a few sensors and actuators, fixture and test benches that drive lamps or a stack light, access-control and guard-door points, process skids and material-handling equipment. Where the sequence is more complex, the same panel still works as the HMI and the GPIO block handles the local signals while a controller runs the logic.
Related models
Other models in the ODM range
The EPC-W2122B is the GPIO member of the range — the one to pick when the panel itself has to read switches and drive outputs instead of handing that job to a PLC. If you need more serial channels, four Intel LAN ports, a coated board, a battery inside the panel or an extended-temperature build, a sibling model in the same range carries it.
Send us the cutout, the I/O list and the environment
Tell us the panel size and the existing cutout, the networks and serial devices you have to connect, the processor tier and the environment. We will confirm the configuration, the part number, the lead time and the price — typically the same working day.
Request a quotation
Tell us what you need — we will quote your application
Pick the specification and the application below — every answer reaches us as a separate line, so one reply can confirm the exact build, lead time and price. Not sure about a field? Leave it on “advise me” and our engineers will choose for you.