100% brand new and high quality Features: Compact size: 90mm x 67mm Native Wi-Fi support 12V to 24V input power supply, 3 power outputs and 3 5V outputs 4 * **TMC2209** stepper drives: X, Y, Z and E axis Onboard TF card socket CH340 for high speed USB serial connection X, Y, and Z min endstops; also supports sensorless homing Allows the use of a Z-axis probe, such as an inductive sensor, running on the input supply voltage (12V to 24V) or 5V A controllable fan, you can choose the power supply voltage (12/24V) or 5V voltage for it Xh2.54 connector, firm and easy to plug PCB: Black matte ink,lead-free tin spray process High quality, High temperature FR4-TG130 PCB Why do you need this board? If you want to be able to control your 3D printer via a web browser without having to buy extra components like a Raspberry Pi for Octoprint, this board is for you. If you run a printing farm and want to be able to start prints remotely via Wi-Fi, this board is for you. Native Wi-Fi support: FYSETC E4 is based on the ESP32 microcontroller, so the E4 supports 802.11 b/g/n protocols, and a custom fork of Marlin firmware can be used on the board to allow the board to be controlled via a web browser. This removes the need for the traditional LCD controllers that most other boards use. There is also no need to connect a Raspberry Pi in order to control the printer via a web interface. The web interface is the popular ESP3D webUI, which runs natively on the custom Marlin fork. The printer can then be controlled via any web browser, be it a PC, smart phone, or tablet. For example, you can slice your 3D model using a slicing software on your PC, then use your PC's web browser to connect to the printer, send the sliced GCODE file to the printer via Wi-Fi. Then, using the same web browser, you can tell the printer to start printing away. Trinamic stepper drivers: FYSETC E4 use the latest ,best stepper drvier : TMC2209. 1. Ultra quiet 2. Good heat dissipation 3. Max current up to 2A 4. Large heat sink,good heat dissipation 5. Support sensorless-homing function. High voltage for probes One common problem when using inductive or capactive probes is the voltage which they are powered at. These probes are usually connected to the Z endstop, which is powered directly by the microcontroller. This means 5V or 3.3V, but these probes are not designed for such low voltages. Instead, they are usually designed for operation at 6V or more. Using a lower voltage to operate such probes reduces their detection distance, and therefore their effectiveness. The FYSETC E4 has a dedicated connector for such a Z probe which uses the voltage of the power supply to power the probe. If you are using 12V for the power supply, the probe will be running on 12V, and vice versa for when using a 24V power supply. This allows the probe to operate within its specifications, delivering optimal detection distances. Onboard or External Antenna There are two versions of the E4 board. One is that the antenna of the WiFi module is onboard. And the other is a WiFi module with an external antenna. This option give you the choice that if you want to install board in a closed box, the external antenna can avoid the problem of WIFI signal weakening in a confined space. E4 V1.0 Wifi Control Board Kit only,other accessories demo in the picture is not included. Specification: Material: Plastic, Metal Length: app.9cm/3.54in Width: app.6.7cm/2.64in Color: As the pictures shown Quantity: 1 Set Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package Contents: 1 Set x E4 V1.0 Wifi Control Board Kit