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NerdMiner V2 Solo Bitcoin Miner (ESP32)
Shipping

Shipping Policy

Shipping within South Africa

  • Courier: Aramex (door-to-door)
  • Flat rate: R89 per order
  • FREE shipping on orders over R1,000
  • Dispatch time: Orders are usually dispatched within 1 business days once payment is confirmed.
  • Delivery time: Typically 2–3 business days after dispatch (major areas). Outlying areas may take a bit longer.

Local delivery in selected Johannesburg areas

  • Local delivery: Available in selected Johannesburg areas.
  • Delivery fee: Calculated based on your delivery zone and shown at checkout.
  • Delivery time: Delivered within 1 working day once payment is confirmed.
  • Eligibility: Local delivery will only appear at checkout for eligible addresses.
  • Important: Please make sure your delivery address and phone number are correct, and that someone is available to receive the order.

Tracking details will be sent to you as soon as your parcel has been collected/processed by the courier.

Delivery address

  • Please ensure your delivery address and contact number are correct. If you need to change details after ordering, message us ASAP.

Delays

  • Courier delays can happen occasionally due to holidays, weather, or remote delivery zones. If your delivery seems delayed, contact us and we’ll follow up with the courier.

Support

Returns Policy

Refunds & Returns Policy – HashLotto

Last Updated: 16 March 2026

Thank you for shopping at HashLotto. We sell niche, hobbyist Bitcoin mining hardware such as Bitaxe and NerdMiner devices. Because of the technical nature of these products, please read this policy carefully before purchasing.

1. Change-of-mind returns

We accept change-of-mind returns within 30 days of delivery, provided the product has not been damaged and is returned with all original packaging, cables, and accessories.

To be eligible for a return:

  • The product must be undamaged
  • All original packaging, cables, and accessories must be included
  • The item must not show signs of misuse, modification, or physical damage

Because these are electronic devices, we may decline a return if the product has been damaged, altered, or is not returned in its original condition.

If approved, you can choose a refund (minus shipping costs) or store credit. You will be responsible for the return shipping costs.

2. Faulty or damaged on arrival (DOA)

If your product arrives damaged or not working out of the box, contact us within 30 days of delivery at:

Email: info@hashlotto.co.za
WhatsApp: 082 603 6403

Please include:

  • Your order number
  • A description of the problem
  • Photos or video showing the issue and the packaging

We will first try to troubleshoot remotely (many issues are simple configuration or power problems).
If the device is confirmed to be faulty, we will arrange one of the following at our discretion:

  • A replacement unit, or
  • A repair, or
  • A full refund of the product price

We may ask you to send the product back for inspection before a replacement or refund is approved.

3. Warranty

Unless otherwise stated on the product page:

  • We offer a 12-month limited hardware warranty from the date of delivery.
  • This covers defects in materials or workmanship under normal use.

The warranty does not cover:

  • Damage from incorrect power supplies, over-volting or wiring
  • Physical damage, drops, liquid damage, burns
  • Damage from modification, soldering, flashing custom firmware, or overclocking
  • Normal wear and tear

If you believe your device has failed under normal use during the warranty period, contact us with your order number, description and photos/video. We will assess and advise next steps (repair, replacement or partial refund).

4. Non-returnable items

We cannot accept returns for:

  • Products that have been physically modified
  • Devices with obvious misuse, burns or liquid damage
  • Items returned without original accessories or serial numbers

5. How to request a return

To start a return, please email us at info@hashlotto.co.za with:

  • Your full name
  • Order number
  • The product name
  • Reason for return
  • Photos/video (if faulty)

We will reply with instructions and a return address if your return is approved.

Please do not send any items back without first contacting us – unapproved returns may be rejected.

6. Refunds

Once we receive and inspect your return, we’ll let you know if your refund is approved or rejected.

  • Approved refunds will be processed to your original payment method within 5–10 working days, depending on your bank/payment provider.
  • Shipping costs are non-refundable, except where we shipped the wrong item or the product is confirmed faulty on arrival.

7. Your rights

This policy applies in addition to your rights under South African consumer law (including the Consumer Protection Act). Nothing in this policy is intended to limit your legal rights.

If you have any questions about whether a return will be accepted, please contact us before sending anything back.

Contact:
Email: info@hashlotto.co.za
WhatsApp: 0826036403

Secure Transaction

Secure Transaction

Your payment is processed securely via PayFast, a trusted South African payment gateway. Card details are encrypted and never stored on our site.

🇿🇦 Stock in South Africa
🚚 Door-to-door delivery – R89.99 nationwide
🎉 Free delivery on orders over R1000
⚡ Ships in 1 working day
📶 USB powered (ultra-low power)
📡 2.4GHz Wi-Fi required
🛠️ Setup guide + local support included
🔒 Secure checkout via PayFast

NerdMiner V2 Solo Bitcoin Miner (ESP32)

Sale price  R 699.00 Regular price  R 800.00
Bundle & save
Upgrade your setup and unlock more value.
Starter Bundle: 1 NerdMiner and 1 stand
Starter Bundle 1 × NerdMiner + 1 × 1-slot stand
🎯 Perfect beginner setup • Clean, simple desk setup
Free Delivery Bundle: 2 NerdMiners and 1 two-slot stand
⭐ Most Popular 2 × NerdMiners + 1 × 2-slot stand
🚚 FREE delivery included (save R89.99)
⚡ Double your mining power
Power Bundle 4 × NerdMiners + 1 × USB Charger (FREE)
⚡ 4× mining power • 🎁 FREE charger included • 🚚 FREE delivery • Best value
🎉 Free delivery on orders over R1000 — automatically applied at checkout.
Secure checkout via PayFast
PayFast Visa Mastercard
Cards accepted • Buyer details encrypted
  • Delivery: Nationwide courier in 1–3 business days
  • Returns: 30-day money-back guarantee
  • Support: Local support via WhatsApp/email

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NerdMiner V2 Solo Bitcoin Lucky Miner

NerdMiner V2 Lucky Miner ESP32 Bitcoin Solo Hash Lottery Miner available in South Africa

The NerdMiner V2 is a tiny ESP32-based lucky Bitcoin miner designed as a fun, ultra-low-power lottery-style miner. It gives you a small chance to win the full Bitcoin block reward. Perfect if you want to play with solo mining, learn how Bitcoin works, or give a nerdy crypto gift without the noise and power draw of a real ASIC.

Every share your NerdMiner submits is like a tiny lottery ticket for the current 3.125 BTC block reward – worth roughly R4.6 million at today’s prices and awarded about every 10 minutes on the Bitcoin network, the rand value changes with the Bitcoin price.

Download the NerdMiner V2 Setup Guide (PDF)

Requires a 2.4 GHz Wi-Fi connection and USB power.


  • Ultra-low power ESP32 Bitcoin lottery miner ideal for hobby & learning

  • Uses only a few watts roughly R10 to R15 /month in electricity at SA tariffs

  • Connects via 2.4 GHz Wi-Fi to a mining pool or node (no Ethernet cable needed)

  • Shows stats on the built-in display (hashes, shares, luck etc.)

  • Great educational tool for kids, students and crypto-curious beginners

  • Awesome gift / desk gadget for Bitcoin fans


Key specs

  • Device: NerdMiner V2 (ESP32)

  • Hashrate: around 1,000 kH/s (≈ 1 MH/s)

  • Algorithm: SHA-256

  • Power draw: approx. 3 to 5 W

  • Est. monthly power cost (24/7 @ ±R3.88/kWh): about R10 to R15

  • Connectivity: 2.4 GHz Wi-Fi

  • Display: integrated 2.8" screen (shows mining info)


Requirements

  • 2.4 GHz Wi-Fi internet connection

  • USB power (phone charger / USB port / USB power adapter)

  • Basic comfort with Wi-Fi setup and entering pool details or node URL


Whats included

  •  NerdMiner V2 Lucky Miner unit

  • USB power cable

  • Local WhatsApp setup support

IMPORTANT: This is a lottery / educational miner, not an investment. Not income.

The hashrate is small, so the chance of ever finding a Bitcoin block is small its like a fun tech version of a lottery ticket. Buy this if you want to learn, tinker and decorate your desk, not to make guaranteed profit.

A working 2.4 GHz Wi-Fi connection and USB power are required for the device to mine.

Not financial advice.

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