Bitcoins Miner V2 Dongle USB 75KH 1W T-Display S3 Bitcoin Solo Lottery Miner Win 3.125 BTC with Low Power Consumption（1PCS）

I bought 2, got them both working after a few hours troubleshooting. Take a look at the screen shots the Seller provides, you must connect to them via wifi, a mobile device works. You need to enter your own choice of the mining provider, nerdminder has their own recommended for things like this and it's free to use. Google it. Enter in your BTC address and such and it will go to work if you did it right. Mine having been mining a few days now, they are slow but effective with only consuming 1 watt of power for the 75k hash they seem to average it's actually a pretty good deal for the price too, though i won't see a penny back unless i get lucky and hit that last part of the block chain, maybe if you wanted consistent mining you could change the provider? not sure.

my computer did not recognize the flash drive, there are not instructions. Worthless crap. will be returning it.

Great little gadget to mine hashes. Perfect for education and to see how it works. There is only one purchased at a time though. Very easy to set up.

Cool little miner at good price. Had some issues getting it connected to my wifi at first, but once connected, it has been working ok. It will freeze up and require rebooting sporadically. My Windows 11 laptop has trouble recognizing it and maintaining the usb connection when I reflashed it a couple of times.

I picked up a NerdMiner recently basically a little open-source Bitcoin miner that’s more of a passion project than a money-printer. It won’t compete with massive mining farms or solve a block every ten minutes, but that’s not the point. What it really gives me is hands-on experience with the Bitcoin network, difficulty adjustments, and the pure thrill of possibly hitting a block against impossible odds. Running it reminds me that Bitcoin started with individuals at home, tinkering and experimenting. Every hash my NerdMiner calculates is part of that same network, competing with the giants. Sure, the odds are slim, but the idea that my tiny device could one day find a valid block is like holding a lottery ticket that never expires.

Reminder that Bitcoin miners are a scam and just waste your energy. You have about a 1 in 17 million chance of winning the 3 coins if you miner happens to solve the problem. This particular device is bunk. I had to return the first one. If you mess the set up connecting it to your coin wallet of choice, you can't go back. It's not intuitive. And now after about 4 months of use, the screen has burned out. What a colossal waste of money, time and energy. Don't buy it. You won't win a single fraction of a coin and you will just add to your electric bill.

When you learn how to set this one up. You can set up most others as well.

Ordered 2, got them today. Interestingly, only one of them is an actual dongle miner (as show on the picture), the other one is a T Display S3. Not complaining though. The setup is a bit finicky, you basically have to flash the miner before you can start using it. Once I managed to set them up, they seem to be working well. I even managed to get a 32bit share in my first 3 hours of mining (unfortunately they aren't worth anything)