IZI1

Teensy 4.1 Lockable Version USB Development Board (without pins)

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Newegg
USD 49.86

at Newegg

Updated: Oct 30, 2026

About this item

Key Features: Designed to bring all general purpose I/O pins to breadboard friendly pads on the outside edges Lockable for secure device development Can be programmed using the Arduino IDE with Teensyduino add-on

ARM Cortex-M7 brings many powerful CPU features to a true real-time microcontroller platform Pins not included

Teensy 4.1 features the fastest micocontroller and an expanded set of powerful peripherals in a 2.4 by 0.7 inch form factor. It's designed to bring all general purpose I/O pins to breadboard friendly pads on the outside edges. Additionally, the bottom side of Teensy 4.1 has locations to solder 2 memory chips. While Standard and Lockable Teensy are identical hardware, the permanent fuse configuration differs. Only Lockable Teensy provides proper code security, and only when a key is written and secure mode is locked. Item Specifics Size: 2.4" x 0.7" ARM Cortex-M7 processor at 600 MHz To use the Ethernet port, a magjack and capacitor need to be connected Recommended Accessories (not included): USB Cable, Pins 24x1 (2), 8MB PSRAM, USB Host Cable, Ethernet Kit

  • Features
    • Version 4.1
    • Pins not included
    • Lockable for secure device development
    • ARM Cortex-M7 brings many powerful CPU features to a true real-time microcontroller platform
    • Designed to bring all general purpose I/O pins to breadboard friendly pads on the outside edges

Specifications

First Listed on Newegg

December 19, 2022

Product photos are for illustrative purposes only and are exemplary. The colors, inscriptions, parameters, dimensions, sizes, functions, and/or any other features of the original products may look different than in reality due to their visual characteristics, so please refer to the product features that are indicated in the product descriptions.

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