This is ESP32 is an Open-Source firmware based on ESP32 hardware, specifically designed for Red Team operations in of network security, providing a range of security testing capabilities. Its main uses include conducting penetration testing and security assessments for various wireless communication methods. Use the CYD you can unlock -Zero-like features on the ESP32 2432S028 device. This board flashed the ESP32- 1.9.1 firmware on the Cheap Yellow Display, offering powerful WiFi and Bluetooth testing features on an affordable and accessible hardware platform. With the CYD , you can easily work with WiFi, BLE, Sub-GHz module ( CC1101 ), NFC ( PN532 ), GPS ( ATGM336H / NEO-6M ), IR and more, this combination offers a powerful platform for exploration. Hardware compatibility: The firmware design is compatible with the Cheap Yellow Display ecosystem and development boards similar to CYD. USB-C and Micro-USB Ports, Micro-SD card slot, acrylic case. CYD(Cheap Yellow Display) with 2.8inch, 240 x 380 touch screen, with driver chip ST7789. To Power on plug it into a laptop, phone charger or powerbank. This device functions with or without and SD card, but you 't be to save your work without one.(SD card not included). Where to find more information about , please contact customer service before ordering. Notice: 1. This link is for ESP32 , not for NMMiner. But this device is NMMiner License Inside, you can flash to NMMiner (for free). If you want to flash NMMiner, please contact customer service. You can flash NMMiner for free from the website provided by customer service. 2. The use of this software for any illegal or unauthorized activities is strictly prohibited. Color: As Shown Material: PCB+Acrylic Package Contents: 1 * Bruce CYD 1 set * accessories (random colors, don't accept the specified color) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.