Five USB Bitcoin Miners in Comparison- Bitcoin Mining
Bitcoin Mining Hardware Comparison
ASICMiner Block Erupter USB 330MH/s Sapphire Miner
The first Bitcoin USB miners were the Sapphire Block Erupters. They have 330 MH/s of hash power which will give you less than $0.01 per month. This is the best choice if you want to see how mining works, but just the like with most USB miners, a profit should be least expected.
GekkoScience Compac USB Stick Bitcoin Miner
Just slightly better than the original block erupters is the GekkoScience miners. It will yield you about $0.15 per month, which will give you more than a dollar in 12 months! The device runs completely silent, as the company claims. It works with just one USB port.
Avalon Nano 3
The Avalon Nano 3 is a 3.6 GH/s miner, which will earn you almost a dollar per year. You just need to plug it into your USB port on any computer and also no fan is required.
Bitmain Antrouter R1 Wifi Solo Bitcoin Miner
Although not exactly a USB miner, the Bitmain AntRouter is just similar. It's cheaper, but with that you just get a 5.5 GH/s, a low one which is a little over $1 per year.
What’s great in this is you can do some mining while providing internet for all your devices because it works as a wireless router.
21 Bitcoin Computer
The 21 Bitcoin Computer isn't the typical USB Bitcoin miner. However, via USB you can plugin it to your computer. It’s not a very good choice though in terms of $ / hash rate. We just included it in this list since it's still technically a USB miner.
We don’t blame you, if you’re not impressed though! USB Bitcoin mining was only profitable when Bitcoin was in its early years. If you just want bitcoins then invest in serious mining hardware or just buy bitcoins.