--- product_id: 220235050 title: "Teensy 4.1 (with Pins)" brand: "pjrc" price: "375 zł" currency: PLN in_stock: true reviews_count: 8 category: "Pjrc" url: https://www.desertcart.pl/products/220235050-teensy-4-1-with-pins store_origin: PL region: Poland --- # 600 MHz ARM Cortex-M7 powerhouse Built-in Ethernet PHY for seamless networking 8 MB flash memory for massive storage Teensy 4.1 (with Pins) **Brand:** pjrc **Price:** 375 zł **Availability:** ✅ In Stock ## Summary > 🚀 Power your innovation with Teensy 4.1 — where speed meets limitless creativity! ## Quick Answers - **What is this?** Teensy 4.1 (with Pins) by pjrc - **How much does it cost?** 375 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/220235050-teensy-4-1-with-pins) ## Best For - pjrc enthusiasts ## Why This Product - Trusted pjrc brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Pro-Grade Integration:** Pre-soldered header pins and multiple serial ports make setup quick and professional-grade. - • **Ultimate Connectivity:** Integrated Ethernet PHY, USB Host port, and microSD socket keep you connected and versatile. - • **Massive Memory Capacity:** 8 MB flash memory plus QSPI chips means you never run out of space for complex code and data. - • **Blazing Fast Performance:** 600 MHz ARM Cortex-M7 CPU delivers desktop-class speed for your most demanding projects. - • **Breadboard Friendly Design:** 42 I/O pins and 35 PWM channels give you endless options for prototyping and expansion. ## Overview The Teensy 4.1 is a high-performance development board featuring a 600 MHz ARM Cortex-M7 processor, 8 MB of flash memory, and extensive I/O options including Ethernet PHY, USB Host, and microSD support. Designed for advanced prototyping, it offers 42 breadboard-friendly pins, 35 PWM outputs, and multiple serial ports, making it ideal for complex embedded projects requiring speed, connectivity, and flexibility. ## Description Technical Specifications - 10/100 Mbit DP83825 PHY Ethernet - USB Host (5 Pins w/ Power Management) - Micro SD Socket SDIO (4 Bit Data) - 35 PWM Pins - 18 Analog Inputs - 8 Serial Ports - 8 Mbyte Flash Memory - QSPI Memory (2 Chips Plus Program Memory) - 42 Breadboard Friendly I/O - 7 Bottom SMT Pad Signals - 6 SD Card Signals - 55 Total IO Pins Review: Teensy Can Make Big Things Happen - I am very pleased with this product. I have been using it as my go to board for my electronic projects. I have been using it with Claude-Code to build a variety of MIDI products. The Teensy 4.1 is exceptionally well suited for these types of products. Combining the Teensy products with a 3D printer and Claude-Code and the possibilities of what one can make are endless. Review: Great device, highly recommended - Very good! I'm coming from an Arduino Leonardo. This board is SIGNIFICANTLY faster, has a ton of very well designed libraries, and has zero hiccups during processing. I'm currently using it as a custom mouse/keyboard/joystick device I built as the brain. The serial port is insanely fast, have never seen it take over 1ms. It has everything built in you can think of. USB host? Yup. Ethernet? Yup. The only downside I can think of is the power consumption, and the heat. I put a heatsink on top of the chip just in case it was downclocking. You do need a little bit of soldering experience if you plan on using all the futures, but it's nothing difficult. ## Features - Pre-Soldered Header Pins - ARM Cortex-M7 at 600 MHz - 4X Larger Flash Memory - Provides Greater I/O Capability - Includes Ethernet PHY, SD Card Socket, and USB Host Port ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08CTM3279 | | Best Sellers Rank | #89 in Single Board Computers (Computers & Accessories) | | Brand | PJRC | | Compatible Devices | USB devices, network devices, microSD cards | | Connectivity Technology | USB | | Customer Reviews | 4.8 4.8 out of 5 stars (106) | | Manufacturer | PJRC | | Memory Storage Capacity | 1 TB | | Mfr Part Number | TEENSY41_PINS | | Model Name | Teensy 4.1 | | Model Number | Teensy 4.1 With Pins Soldered | | Operating System | Linux | | Processor Brand | ARM | | Processor Count | 2 | | Processor Speed | 600 MHz | | RAM Memory Technology | LPDDR4 | | Smart Home Compatibility | Not Smart Home Compatible | | Total Usb Ports | 1 | | UPC | 752785954350 | | Unit Count | 1.0 Count | | Wireless Compability | 802.11b | ## Product Details - **Brand:** PJRC - **CPU Speed:** 600 MHz - **Connectivity Technology:** USB - **Memory Storage Capacity:** 1 TB - **Model Name:** Teensy 4.1 ## Images ![Teensy 4.1 (with Pins) - Image 1](https://m.media-amazon.com/images/I/61z0uC3dCXL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Teensy Can Make Big Things Happen *by R***R on January 29, 2026* I am very pleased with this product. I have been using it as my go to board for my electronic projects. I have been using it with Claude-Code to build a variety of MIDI products. The Teensy 4.1 is exceptionally well suited for these types of products. Combining the Teensy products with a 3D printer and Claude-Code and the possibilities of what one can make are endless. ### ⭐⭐⭐⭐⭐ Great device, highly recommended *by T***3 on July 24, 2025* Very good! I'm coming from an Arduino Leonardo. This board is SIGNIFICANTLY faster, has a ton of very well designed libraries, and has zero hiccups during processing. I'm currently using it as a custom mouse/keyboard/joystick device I built as the brain. The serial port is insanely fast, have never seen it take over 1ms. It has everything built in you can think of. USB host? Yup. Ethernet? Yup. The only downside I can think of is the power consumption, and the heat. I put a heatsink on top of the chip just in case it was downclocking. You do need a little bit of soldering experience if you plan on using all the futures, but it's nothing difficult. ### ⭐⭐⭐⭐⭐ Programs like an Arduino, seems really fast, lots of IO, Threading with TeensyThreads.h *by B***Y on September 28, 2024* Trying it out for my robot. I need speed and lots of I/O. So far it programs like an Arduino, programs upload really fast, CPU itself seems very fast, and has multitasking with: #include I'm very impressed. Check it out (Specifications): - 10/100 Mbit DP83825 PHY Ethernet - USB Host (5 Pins w/ Power Management) - Micro SD Socket SDIO (4 Bit Data) - 35 PWM Pins - 18 Analog Inputs - 8 Serial Ports - 8 Mbyte Flash Memory - QSPI Memory (2 Chips Plus Program Memory) - 42 Breadboard Friendly I/O - 7 Bottom SMT Pad Signals - 6 SD Card Signals - 55 Total IO Pins The Teensy 4.1 is crazy fast, and you can overclock it easily with a compiler code to 1GHz. Below is set for 816MHz. Example: ; PlatformIO Project Configuration File ; ; Build options: build flags, source filter ; Upload options: custom upload port, speed and extra flags ; Library options: dependencies, extra library storages ; Advanced options: extra scripting ; ; Please visit documentation for the other options and examples ; https://docs.platformio.org/page/projectconf.html [env:teensy41] platform = teensy@5.0.0 board = teensy41 framework = arduino ;build_flags = -O3 ; <--- compile for fastest performance ;build_flags = -DF_CPU=720000000 -O3 # For 720MHz ; <--- needs cooling build_flags = -DF_CPU=816000000 -O3 ; ;# For 816MHz ; <--- needs solid cooling ;build_flags = -DF_CPU=1000000000 -O3 ; <--- needs lots of cooling ; upload_protocol = teensy-gui lib_deps = adafruit/Adafruit BusIO Adafruit DotStar@1.2.5 SPI@1.0 ftrias/TeensyThreads@^1.0.2 sparkfun/SparkFun Qwiic GPIO TCA9534 Arduino Library@^1.0.0 cytrontechnologies/Cytron Motor Drivers Library@^1.0.1 adafruit/Adafruit Unified Sensor@^1.1.14 ## Frequently Bought Together - Teensy 4.1 (with Pins) - Treedix Breakout Board Module with Pin Board for Teensy 4.1/3.5/3.6 Compatible with Arduino - Terminal Block Breakout Board Module for Teensy 4.1, Screw Mount Version --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/220235050-teensy-4-1-with-pins](https://www.desertcart.pl/products/220235050-teensy-4-1-with-pins) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-24*