Pay special attention! ! ! ! ! ! This device has been written with the 2.1.4 stable version firmware. You can only use the 2.1.4 firmware we have installed. It is strictly forbidden to flash other versions of firmware! ! ! Otherwise, it cause device failure. If the failure is caused by this reason, our store not bear the consequences. It has been strictly tested before delivery When you get the device, you only need to set Wi-Fi and your wallet address, and the mining pool address and port you are familiar with. Do not set other parameters at . To avoid device failure! is a fork from Ultra with fullcolor display graphics, a fully open-source Bitcoin ASIC miner. is indented to be an expansion board for these who have a NerdMiner and would like to have more powerful mining features without losing the NerdMiner essence. That's why is currently controlled by the common board used on Nerdminer project,This design ensures an efficient and powerful mining capabilities, achieving 500 /s with an energy efficiency of 20 J/TH Although the current mining capabilities of position it as a solo miner compatible with any solo mining pool, it's important to manage expectations regarding its performance. Mining a block independently with is a challenging and unlikely. Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Plug Type: EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on Voltage: AC100-240V Colour: Black+Yellow Material: Plastic Package Contents: 1* Miner 1* Power adapter 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.