JetKVM

ATX Extension Board

Name: ATX Extension Board
Brand: JetKVM
Price: 20.0 USD
Availability: InStock
Rating: 3.5 (10 reviews)

10 total reviews

Tags:

JetKVM Extension
JetKVM
ATX

$20.00 USD

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Model ATX Extension Board

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JetKVM ATX Extension Board

Add remote power control to any desktop PC. The ATX Extension Board sits between your motherboard's F_PANEL header and chassis buttons, giving you full remote control over power on/off, reset, and status monitoring — without replacing your hardware.

View on GitHub

What Is the ATX Extension Board?

The ATX Extension Board acts as a smart bridge between your motherboard's front panel header and your PC case buttons. It captures power/reset button presses and LED status signals, enabling JetKVM to remotely power on, power off, reset, and monitor the status of any desktop computer.

🔧

Remote Power Control

Remotely power on, power off, or reset your desktop PC through the JetKVM web interface. No need to physically press the chassis buttons.

📊

Real-Time Status Monitoring

See power LED and HDD activity status directly in the JetKVM dashboard. Know at a glance whether your machine is running, sleeping, or accessing disk.

📡

Pass-Through Design

All signals pass through transparently — your chassis power button, reset button, and LED indicators continue to work exactly as before. No functional loss, no compromises.

📦 What's in the Box

✓1x ATX Extension Board (pre-soldered pin headers)

✓1x 10-pin dual-row female-to-female ribbon cable

✓1x USB-C to USB-A cable (for firmware updates)

✓4x jumper caps (for configuration)

📋 Wiring Guide: F_PANEL to ATX Board

Connect your motherboard's front panel header to the ATX Extension Board using the included 10-pin ribbon cable. The pin mapping is straightforward:

No.	F_PANEL Signal		JETKVM ATX BOARD Signal
1	BTN RST+	↔	RESET SW+
2	BTN RST−	↔	RESET SW−
3	BTN PWR+	↔	POWER SW+
4	BTN PWR−	↔	POWER SW−
5	LED HDD+	↔	HDD LED+
6	LED HDD−	↔	HDD LED−
7	LED PWR+	↔	POWER LED+
8	LED PWR−	↔	POWER LED−

💡 Tip: Most motherboards label the F_PANEL pinout in the user manual or directly on the board itself. If your chassis uses a single consolidated front panel connector, you may need to refer to your motherboard manual to identify individual signal positions.

⚠ Note: Pin 8 and 10 on the F_PANEL header are typically key pins (missing/masked). The ATX Extension Board ribbon cable is keyed accordingly — align the missing pin position before connecting.

🖹

Motherboard F_PANEL

Standard 2×5-pin front panel header found on virtually all desktop motherboards.

🔌

Complete Pass-Through

Chassis power/reset buttons and LED indicators remain fully functional. The ATX board simply taps into the signals.

🛠 Troubleshooting Guide

If something isn't working as expected, follow these steps to diagnose and resolve common issues.

✏ Check Wiring Order

Incorrect wiring order is the most common cause of issues. Verify each pin against the mapping table above. Some signals have polarity requirements — reversing + and − may cause the signal to not work or work incorrectly.

🔄 Update Firmware

Always ensure you are running the latest firmware. The ATX board uses an RP2040 microcontroller — updating firmware is simple via USB drag-and-drop (see steps below).

📺 Check JetKVM Status

In the JetKVM web interface, verify that the ATX Extension Board is detected. Look for ATX status indicators in the dashboard. If missing, try reconnecting the ribbon cable.

🔄 Ribbon Cable Seating

Ensure the ribbon cable is fully seated on both ends. A loose connection can cause intermittent or total signal loss. Disconnect and reconnect firmly to confirm.

🖧 How to Update Firmware

The ATX Extension Board is powered by an RP2040 microcontroller with simple UF2 drag-and-drop firmware updates. No special tools or software required.

1

Press & Hold BOOT

Press and hold the BOOT button on the ATX Extension Board.

2

Connect USB

While holding BOOT, connect the board to your computer via USB-C.

3

Release BOOT

Release the button. A drive named RPI-RP2 will appear.

4

Drag & Drop UF2

Drop jetkvm-dc.uf2 onto RPI-RP2. The board reboots automatically.

📥 Download the Latest Firmware

Download from GitHub →

Look for the jetkvm-dc.uf2 file in the latest release.

Who Needs the ATX Extension Board?

If you manage desktop computers remotely, this board turns JetKVM into a complete remote management solution.

Home Lab Operators

Remotely reboot your Proxmox nodes, NAS, or homelab servers when they become unresponsive — no need to walk to the basement.

IT Administrators

Manage remote workstations and office PCs. Power cycle hung machines, perform maintenance reboots, and monitor power status.

Test Lab Engineers

Automate power cycling of test benches and CI/CD worker machines. Integrate with scripts for unattended testing workflows.

Fully Open Source Hardware & Firmware

The ATX Extension Board design files and firmware are fully open source. Built around the Raspberry Pi RP2040 microcontroller. Customize, contribute, or audit the code on GitHub.

RP2040

Microcontroller

KiCad

Hardware Design

UF2

Drag & Drop Flash

View on GitHub

Most cable can’t be used and I have to buy new myself

The Ethernet cable connecring Jetkvm and router, the usb Y splitter for Jetkvm and the usb cable all can’t be used. Only hdmi works. Before I was like the board itself is good I can still buy the cable by myself it’s okay. But the seller said I didn’t use it correctly???? Do you think I don’t know how to use Y splitter?? There is no communication from the seller at all and now the you want to blame the fault to me???. I am angry now. I had everything corrected connected. But when I bought the new cable by myself it worked. I will upload a video later!!!

Sorry for the confusion. To clarify, we did not send you an internet cable. The cable you received is a communication cable for ATX/DC function extensions, and the Y‑cable cannot operate because a 5V power input was not connected. Both issues resulted from incorrect usage, not from any product quality problem.

Second Reply：

We'd like to clarify a few points to avoid any misunderstanding.

First, we do not include an Ethernet cable for connecting the JetKVM to your router. The cable included in the package is an RJ11/RJ12 communication cable, which is designed to connect the ATX/DC module to the JetKVM unit. It is provided as an extra accessory for customers who purchased the JetKVM V1 (with onboard eMMC) and plan to use it together with the ATX/DC extensions. This is not a network (Ethernet) cable.

Second, the USB Y cable requires a 5V-only USB power adapter. If the charger supports multiple output voltages (such as PD or QC fast charging), it may fail to negotiate a stable 5V output, and the JetKVM may not power on correctly. We have clearly noted this compatibility requirement on the standalone Y cable product page（https://www.ikoolcore.com/products/jetkvm-power-data-y-cable-splitter）.

We are not blaming you or suggesting that you used the product incorrectly. Our intention is simply to explain the product requirements and how it should be used so that any potential misunderstandings can be avoided. We appreciate your feedback, and we look forward to reviewing the video you mentioned so we can better understand what happened.

Works great but need fiddling

The project does not come with documentation, so you need to experiment a little to figure out how to wire it correctly.

I understand that they can't provide documentation for all the motherboard that exist, but it would be nice to have a video or example of at least one setup to understand which is needed and take inspiration.

works good

placa am testat-o in toate felurile

se pare ca placa isi face treaba dar acel jetkvm nu trimite semnalul catre ea - per ansamblu produsul este ok, poate am avut eu ghinionul sa nu functioneze partea de control pe acea mufa de telefon care este si de alimentare - am conectat si testat in toate felurile - nu mi se renteaza sa va trimit produsul inapoi dar as fi incantat daca as primi unul functional

This product is amazing. You just plug it in and it works.
Would have put 5 stars, however, there's no instructions, so took a bit of fiddling to connect everything correctly (didn't help that the pin connectors were not labelled). Also, I wish they included a second connector that fits the standard 4x2 or 5x2 pin layout on motherboards for the power/led pins.

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