--- product_id: 231207951 title: "Ethernet Kit for Teensy 4.1" brand: "pjrc" price: "356 kr" currency: DKK in_stock: true reviews_count: 4 category: "Pjrc" url: https://www.desertcart.dk/products/231207951-ethernet-kit-for-teensy-4-1 store_origin: DK region: Denmark --- # Lightweight at 10g for easy integration Full Ethernet connectivity kit Includes all essential components Ethernet Kit for Teensy 4.1 **Brand:** pjrc **Price:** 356 kr **Availability:** ✅ In Stock ## Summary > 🌐 Elevate your Teensy 4.1 with seamless Ethernet power — don’t get left offline! ## Quick Answers - **What is this?** Ethernet Kit for Teensy 4.1 by pjrc - **How much does it cost?** 356 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/231207951-ethernet-kit-for-teensy-4-1) ## 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 - • **Compact & Lightweight:** At just 10 grams, it fits perfectly without bulk or weight - • **Complete Component Set:** Everything you need—MagJack, circuit board, ribbon cable, headers, capacitor included - • **Pro-Level Customization:** Soldering required for a secure, professional-grade connection - • **Optimized for Teensy 4.1:** Designed specifically to unlock native Ethernet capabilities with official NativeEthernet.h support - • **Plug & Play Ethernet Upgrade:** Seamlessly add wired network power to your Teensy 4.1 setup ## Overview The Ethernet Kit for Teensy 4.1 by PJRC is a precision-engineered accessory kit that includes all necessary hardware—MagJack, bare circuit board, ribbon cable, header pins, and capacitor—to enable wired Ethernet connectivity on the Teensy 4.1 microcontroller. Lightweight and compact, this kit requires soldering for installation and leverages the NativeEthernet.h library for robust network integration, making it an essential upgrade for developers seeking reliable, high-speed Ethernet access. ## Description The Ethernet Kit for Teensy 4.1 has all the parts needed to connect to the Ethernet port on the Teensy 4.1.This kit includes the following: one (1) Ethernet MagJack, one (1) bare circuit board, one (1) ribbon cable assembly, two (2) header pins, and one (1) capacitor. PLEASE NOTE: Soldering is required. Teensy 4.1 is NOT included. Review: Simple to build kit to add Ethernet to Teensy 4.1 - Need a soldering iron of course. The 6 pin headers don't have enough pins to give a good grip so needed a small band to hold them in place when testing out on the workbench. For building into a box recommend a small dab of silicon adhesive to keep them in place. Teensy 4.1 with Ethernet is awesome, well worth getting this add-on. To confirm an active Ethernet connection I try to get a connection with an Internet Time server at startup, as per one of the examples :) Review: Teensy 4.1 NativeEthernet.h - You'll know if you need this and it looks the same as the one for sale on PJRC's site. The library for this is NativeEthernet.h. Library appears to be bundled Teensyduino from 1.53, and there are sketch examples under NativeEthernet (for Teensy 4.1). Mine seems to work fine testing with NativeEthernet>WebServer example. Soldering was fine but it's quite tight around other components on the Teensy board so care and clean tips were required. ## Features - The Ethernet Kit for Teensy 4.1 has all the parts needed to connect to the Ethernet port on the Teensy 4.1. - This kit includes the following: one (1) Ethernet MagJack, one (1) bare circuit board, one (1) ribbon cable assembly, two (2) header pins, and one (1) capacitor. - PLEASE NOTE: Soldering is required. Teensy 4.1 is NOT included. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08CTM1L64 | | Best Sellers Rank | 183,467 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 741 in Barebone PCs | | Brand Name | PJRC | | Compatible Devices | Desktop | | Customer Reviews | 5.0 5.0 out of 5 stars (13) | | Data Link Protocol | Ethernet | | Hardware Interface | Ethernet | | Item Weight | 0.01 Kilograms | | Manufacturer | PJRC | | Manufacturer Part Number | ETHERNET_KIT_TEENSY41 | | UPC | 642613584203 752785954381 | ## Product Details - **Brand:** PJRC - **Compatible devices:** Desktop - **Data link protocol:** Ethernet - **Hardware interface:** Ethernet - **Item weight:** 0.01 Kilograms - **Manufacturer:** PJRC - **UPC:** 642613584203 752785954381 ## Images ![Ethernet Kit for Teensy 4.1 - Image 1](https://m.media-amazon.com/images/I/41QuEmtFa6L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Simple to build kit to add Ethernet to Teensy 4.1 *by T***L on 7 February 2021* Need a soldering iron of course. The 6 pin headers don't have enough pins to give a good grip so needed a small band to hold them in place when testing out on the workbench. For building into a box recommend a small dab of silicon adhesive to keep them in place. Teensy 4.1 with Ethernet is awesome, well worth getting this add-on. To confirm an active Ethernet connection I try to get a connection with an Internet Time server at startup, as per one of the examples :) ### ⭐⭐⭐⭐⭐ Teensy 4.1 NativeEthernet.h *by D***V on 13 September 2020* You'll know if you need this and it looks the same as the one for sale on PJRC's site. The library for this is NativeEthernet.h. Library appears to be bundled Teensyduino from 1.53, and there are sketch examples under NativeEthernet (for Teensy 4.1). Mine seems to work fine testing with NativeEthernet>WebServer example. Soldering was fine but it's quite tight around other components on the Teensy board so care and clean tips were required. ### ⭐⭐⭐⭐⭐ Ethernet for my teensy 4.1 *by D***D on 18 December 2020* great item easy to put together works and well packed great seller ## Frequently Bought Together - Teensy Ethernet Kit for 4.1 - Teensy 4.1 (With Pins) --- ## 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.dk/products/231207951-ethernet-kit-for-teensy-4-1](https://www.desertcart.dk/products/231207951-ethernet-kit-for-teensy-4-1) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-04-22*