4x4 Matrix Keypad

Marsoni

M251S

$10.00

Get it in 3 business days with 1 day shipping. Friday, May 29

4x4 Matrix KeypadPunch in your secret key (or Jenny's number) into this numeric matrix keypad featuring 16 buttons arranged in a 4x4 grid. The keys are connected in a matrix format, requiring only 8 microcontroller pins (4 columns and 4 rows) for scanning. This keypad includes headers for easy breadboard hookup, requiring light soldering to attach. Alternatively, you can use plain wires. It's a sturdier version of our Membrane 3x4 Matrix Keypad. The left side has four

Easy Shipping

Quick Dispatch:

Your 4x4 Matrix Keypad orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your 4x4 Matrix Keypad ships.

Need Help?
Questions about 4x4 Matrix Keypad, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for 4x4 Matrix Keypad in your area.

Get Shipping Estimates

Country Zip/Postal Code

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

I lost one of my housings on the freeway and had a hard time finding the style I had. Different than the standard, but not the Euro ones. Hard to find, at least for me. These were a bit closer to what mine looked like. I had to remove the rubber gasket around the housing to get it to fit (2003 330XI) but it worked like a charm.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on January 16, 2025

Verified Purchase

ELozano

Charlottesville, US

★★★★★ 3

Not a proper fit

Received as promised by the seller. My cons on this item: 1) the socket holes does not make a tight fit with the light bulb sockets I have. Both issues for left and right. I had to double the o-ring on my light sockets to make it tight fit. 2) The rubbers around the casing was not properly glued in. The rubber sticks out by a few centimeters. Pics attached.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on November 29, 2025

Verified Purchase

Jupiter

Louisville, US

★★★★★ 4

Looks great on my 2005 BMW 325i

Very pleased with the results after I assembled on my car…except the fit of bulb socket to assembly was a little loose on both of them….but I think it will be fine.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on November 23, 2024

Verified Purchase

Trent adkins

San Leandro, US

★★★★★ 5

Works as it should

Right part fit good

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on November 10, 2025

Verified Purchase

Miguel R.