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iUniker

Bitcoin Miner V2.1 ESP-WROOM-32 ESP32 Development Board 2.8 inch Smart Display, Bitcoin Lottery Miner, BTC Solo Miner, Lottery Miner kit 1010H/s Crypto Solo Lottery Miner（Configuration Required）

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$24.99 Why this price?

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Features

  • The module is the ESPWROOM32 development board.
  • 802.11 b/g WiFi + Bluetooth (BT) module
  • Lowpower dualcore 32bit CPU, can serve as an application processor
  • Up to 240 MHz main clock, up to 600 DMIPS computing performance
  • 520 KB/S RAM on chip
  • Supports interfaces: UART / SPI / I2C / PWM / DAC / ADC
  • Supports Open OC Ddebugging
  • Supports multiple lowpower modes; deepsleep current as low as 6.5 A
  • Integrated LwIPand FreeRTOS
  • Supports STA / AP / STA+APmodes

Brand: iUniker


Model Name: HW-458-V2.1


CPU Speed: 240 MHz


Connectivity Technology: Wi-Fi, Bluetooth, UART, SPI, I2C, PWM, DAC, ADC


Included Components: 2.8 inch Screen with ESP‑WROOM‑32, USB Cable, 4 Pin Cable, Touch Pen, Case


Processor: ‎240 MHz


RAM: ‎DDR


Brand: ‎iUniker


Series: ‎HW-458-V2.1


Item model number: ‎HW-458-V2.1


Operating System: ‎FreeRTOS


Item Weight: ‎2.82 ounces


Package Dimensions: ‎3.94 x 3.15 x 2.36 inches


Processor Brand: ‎Espressif


Number of Processors: ‎2


Manufacturer: ‎iUniker


Date First Available: ‎November 9, 2025


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • $2.99 Hidden Fee to buy a License (not included)
Requires you to flash it before use. Requires $2.99 via PayPal to buy the "License" to be able to start using it. There are more user friendly, plug and play options. Do not recommend this vendor.
Reviewed in the United States on January 2, 2026 by S. Farley
    • Hidden charges 😡
Bought it for my boyfriend for Xmas. As soon as he started putting it together it started demanding a $3.99 fee. Nowhere in the listing did it disclose additional fees. It doesn't indicate if the fee is 1 time or reoccurring. I'm so mad because it was never indicated there were hidden charges. Likely to return it but am def going to notify Amazon. ... show more
Reviewed in the United States on December 26, 2025 by AmyJeeps
    • Great little lottery miner board
This card works perfectly as a small miner and is great as a gift for someone to learn about BTC and how it works. It is a lottery miner which means it may never successfully mine a coin, but the fun factor really is there. Despite the reviews, I was able to flash this card easily.The seller was awesome in customer service. I originally had a problem flashing software to the board. I sent an email to their customer support and overnight I was given the answer. The seller was very apologetic, the manual mistakenly lists the incorrect chipset. The seller also answered a few more questions without any hesitation. Would definitely purchase again and not hesitate purchase from bunker! Thabks forbtge help!! ... show more
Reviewed in the United States on December 11, 2025 by John Lee
    • Trash
Won't work tried everything, not my first one. Tried firmware, boot mode, new bin file wont connect.
Reviewed in the United States on December 5, 2025 by matt
    • Device does not work.
Didn’t boot up, only activity was a white blank screen
Reviewed in the United States on December 27, 2025 by VILLAVERT REYMOND
    • Minor problem.
I bought 2. One was fine but the others touch screen display is not reactive. Unable to fix even with firmware updates.
Reviewed in the United States on December 18, 2025 by Amazon Customer
    • Have to download firmware or flash it..inoperable until..
Developers item not accepting flash.
Reviewed in the United States on December 30, 2025 by Mrs. C.Marie Holts
    • Choose another option
Doesn't come with the program on it. Instructions are difficult to follow. No matter how many times I've tried I've never been able to get the program to load and run.
Reviewed in the United States on December 31, 2025 by Nekronomikan

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