ASICMiner Block Erupter USB (330MH/s) Sapphire Bitcoin Miner
Block Erupter USBs were first announced by ASIC Miner on BitcoinTalk.org in 2013. They were a portable, pocket sized yet relatively powerful bitcoin usb miners, and were suggested as «a perfect gift for getting people knowing about Bitcoin and Bitcoin mining».
The Block Erupter USB Miner comes in 5 different colors blue, silver, black, red, and yellow. At release the minimum order amount was 300 USB miners, so by the help of retailers and group-buys site people could obtain one. Since then many new version of the tiny usb miner has been released. Today the ASICMiner Block Erupter USB (330MH/s) Sapphire edition is available for $20 on Amazon and other stores.