Bitcoin USB-Stick Miner bitshopper GekkoScience 2Pac 5,5 up to 25 GH/s (33 GH/s max.)

No Phone number to give you a quick ring for tips, maybe a little slip in the box just with a bit of contact info? 3 stars10.89Gh/s averageMakes about 0.00000188 Satoshi per dayRecommended you buy fans to cool this unit gets HOT! But no warning.TBH i dont think this is a good buy! Even tho its recommended on sites.Willing to review feedback, with correct technical support!Amazon made me laugh, I asked the guy 1 question and he kept me on hold half hour trying to work out the answer lol, then suggested i contact bitshopper, lol but had NO PHONE NUMBER!

An absolutely excellent learning tool for getting into cryptocurrency mining. While you won't make money by mining on this (my GPU actually produced a better return) it allowed me as a beginner to learn about configuring specialist miners and how to set up the software to run the larger external devices. Probably the best and cheapest way to learn how to configure ASICs for bitcoin mining.An externally powered USB hub is pretty much essential to use this.

Arrived early and so far so good, currently running a about 20GHs. It does run extremely hot and I do believe it has overheated and stopped once. Though considering most bitminers, this is not unusual.Quite Happy

Worked as expect once setup!!! Few setup issues!

Very good product, good to learn how to mine cryptocoin. Virtually impossible to make any money mining coin if you are in uk as electricity cost is too high but good learning tool. Too hot, you need to purchase a usb cooling fan at same time. You can’t use stick without cooling whilst mining cryptocoin. Have fun.

product is fine but its not much use for serious mining applications only any good to mess withalso its a sha256 algo only miner

Works perfectly out of the box and gets no hardware errors while running