This is ESP32 Marauder (ESP32 Mar-x-auder) , a suite of WiFi or Bluetooth and tools for ESP32. This board is running on ESP32-2432r028, think of it like a cheaper Flip-x-per Zero. USB-C and Micro-USB Ports, Micro-SD card slot, acrylic case. CYD(Cheap Yellow Display) with 2.8inch, 240 x 380 touchscreen, with driver chip ST7789. To Power on plug it into a laptop, phone charger or powerbank. Kick devices off of WiFi networks, shutdown , monitor network traffic, and more. This enable a secure and reliable wireless. This device functions with or without and SD card, but you 't be to save your work without one. Notice: 1. This link is for ESP32Maruder, not for NMMiner. If you want flash to NMMiner, you should get a license from the NMMiner Team. 2. The Micro-SD card (not included). which is required for some of the capabilities of marauder. Note: Please contact customer service if you need operation video material project description. (There are differences in printing screen printing due to different batches, which not affect the use.) Color: As Shown Material: PCBandAcrylic Package Contents: 1 x ESP32 Marauder 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.