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Description
Matek GNSS M9N-G4-3100Features GNSS NEO M9N Compas RM3100 Patch Antenna 25*25*4mm MCU STM32G474CE, 170MHz CAN, DRONECAN Protocol Compatible with CAN FD (5Mbps) & CAN 2. 0 (1Mbps) UART3, MSP Protocol 36*36*12mm Firmware: AP_Periph MatekG474 GPS Firmware can be updated via G474 DFU mode M9N G4 3100 is based on ArudPilots AP_Periph firmware, It is a GNSS+COMPASS peripheral with CAN DroneCAN and UART MSP interfaces. M9N G4 3100 uses multi constellation GNSS powered by M9
Features
- GNSS NEO-M9N
- Compas RM3100
- Patch Antenna 25*25*4mm
- MCU STM32G474CE, 170MHz
- CAN, DRONECAN Protocol
- Compatible with CAN FD (5Mbps) & CAN 2.0 (1Mbps)
- UART3, MSP Protocol
- 36*36*12mm
- Firmware: AP_Periph MatekG474-GPS
- Firmware can be updated via G474 DFU mode
- M9N-G4-3100 is based on ArudPilots’ AP_Periph firmware, It is a GNSS+COMPASS peripheral with CAN/DroneCAN and UART/MSP interfaces.
- M9N-G4-3100 uses multi-constellation GNSS powered by M9 series , It is a concurrent GNSS receiver which can receive and track multiple GNSS systems. Owing to the multi-band RF front-end architecture all four major GNSS constellations, GPS,Galileo, GLONASS and BeiDou can be received concurrently.
- M9N-G4-3100 integrates an industrial-grade compass PNI RM3100 which provides high resolution, low power consumption, no hysteresis, large dynamic range, and high sampling rates.
- G474 CAN node is compatible with CAN FD(5 Mbps) & CAN 2.0 (1 Mbps)
Specifications
- GNSS M9N series (GPS, GLONASS, Galileo and BeiDou)
- Magnetic Compass RM3100
- Patch GNSS Antenna 25*25*4mm
- MCU STMG474CE, 170MHz
- UART2, onboard M9N GNSS module
- UART3(TX3), MSP Protocol
- CAN, DroneCAN Protocol
- USB, for firmware update in G474 DFU mode
- CAN bootloader LED, Blue
- Fast blinking, Booting
- Slow blinking, working
- GNSS PPS LED, Green
- Green LED OFF after powering on
- blinking(1Hz) when GNSS has 3D fixed
- 3.3V LED, Red
- Input voltage range: 4~6V (5V pad/pin)
- Power consumption: 100mA
- Operating Temperatures: -20~80 °C
- 36mm*36mm*12mm
- 16g
- M9N-G4-3100_step.zip
Firmware
- ArduPilot AP_Periph: MatekG474-GPS or MatekG474-Periph
- Update via DroneCAN GUI Tool or Mission Planner–DroneCAN Tab, load AP_Periph.bin
- Update in G474 DFU mode via USB & STM32CubeProgrammer, load AP_Periph_with_bl.hex
Tips & Notes
- on M9N-G4-3100, The 3 magnetic coils have little solder paste to avoid the excess to “tilt” them, resulting in some reading inaccuracies of the compass. Any strong impacts will definitely separate them, especially the “tall coil” Sen-Z-f. Pls use this precision module with care.
- Start with ubx GNSS FW3.01, timepulse is aligned with UTC time and that time is set valid only after leap second is downloaded. That could take up to 12.5 min. Probably PPS LED will not blink immediately after GPS has 3D fixed.
- The M9N-G4-3100 provides the ability to reset the receiver. Bridging “M9N-RST” pad to Ground for at least 100 ms will trigger a cold start. RESET will delete all information and trigger a cold start. It should only be used as a recovery option.
- No barometer integrated.
Includes
- 1x M9N-G4-3100
- 1x JST-GH-4P to JST-GH-4P 20cm silicon wire
- Mounting base (1x PCB plate, 4x silicon grommets, 4x Nylon standoffs M3x7, 4x Nylon screws M3*8)
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
Comfortable, Adjustable, and Great Value!
Color: Gray, Item Shape: Teardrop, Color: Gray, Item Shape: Teardrop
This footrest is exactly as described. The two-piece design offers excellent flexibility, allowing for multiple configurations to suit different needs. Both pieces are comfortable and adjust easily as intended. I’m especially glad I chose the teardrop style—it works perfectly for my setup.
I’ve experimented with several of the suggested configurations and can see how the various options would accommodate different preferences and ergonomic needs. For me, this was an ideal choice.
The overall design and construction appear to be high quality and durable. When used with socks, the surface is very comfortable, and the base grips the floor securely when in use. Overall, I believe this product offers great value for the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 22, 2026
★★★★★ 5
Amazing!!
Color: Right - Black, Size: Large
The only issue I have with this is that I didn’t buy two of them. I literally use it every day for work. It has saved my wrist from so much pain. The way my hand rest on it. It actually has a firm side and a soft side to contour the shape of the hand a little bit better so that I was impressed by that. very very high-quality. I use it every day for the last three years maybe four years and it’s still works just like day one it feels so natural and the support that I don’t even feel it. I switched from the mouse to the keyboard and one sweeping motion that I don’t need to take my hand off of it. The height on it is amazing so much so that it gives me a natural resting position for my wrist so it doesn’t pull back. It is just a perfect height.
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Reviewed in the United States on March 23, 2026
★★★★★ 5
Premium wrist rest for a premium price
Color: Right - Black, Size: Small
Does as described. I replaced my old stationary gel wrist pad with this. There is an adjustment period to get used to laying your wrist back into it after typing but I can definitely say my wrist isn't as sore nor has that tingly carpal tunnel sensation came back after a heavy gaming session. Glides pretty smoothly on my mousepad but I'm not sure how it is on cloth pads. Worth the investment if you have the money to spend on it. Also the packaging definitely feels luxurious.
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Reviewed in the United States on May 15, 2026
★★★★★ 4
Beautiful design, noticeably less wrist pain
Color: Right - Black, Size: Large, Color: Right - Black, Size: Large
-Packaging:
Simply amazing. The packaging material was great and the box has a nice sliding mechanism. Thoughtful.
The box comes with instructions, a bunch of QR codes on the box for more details, and a nice carrying case.
-The item:
Very low profile and gorgeous design. The item is made of durable material. The 'cushions' on the top side are very comfy, especially around the areas of the wrist that will carry most of your hand's weight. The bottom is designed so that your hand can glide along with your mouse with minimal friction (using with fabric mouse pad).
-Uses:
1. Work: it is a must-have if you have an office job. I have been using mine for a few days at work and I feel much less pain in my wrist.
2. Gaming: It does get a while to get used to it, but after a while the movement becomes natural and you won't notice the Carpio
Just like with using it for work, you will not feel wrist pain after long gaming sessions.
I believe my aim in fps games got just a bit better while using the item. Or hey, sometimes my opponent is just not having a really good day.
Cons:
1. A bit overpriced. It may have taken a lot of research and design to come up with the product, but I would have been a lot happier if I had paid just a little less for the product. However, it does beat the competition in both, design and comfort.
2. Using the Carpio is pleasant most of the time, as long as your hand does not leave it, but as soon as you lift your hand off the Carpio it takes too long to find the sweet spot again. The box says it would take two weeks to get used to using the product and I'm only in my first week. I think this will change the more I get used to using the product.
3. For con reasons 1 & 2 above, I think it would not be a good idea to have two Carpios (right-handed and left-handed) to use with the keyboard
Overall, I do recommend this product and love using it so far for work and gaming, but I rated it 4/5 only because of how I feel about the price.
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Reviewed in the United States on February 4, 2023
★★★★★ 5
Excellent Product
Color: Right - Black, Size: Large
Really comfortable. Very usefull for my wrist, great shape, really smooth on the movement. Recommended to take care of you wrist.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
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