KE-KZB-202 is a high performance and reliable thermal printer control board, which is developed to match to our 2-inch thermal printer mechanism KE-P202 (compitable with Fujitsu FTP-628MCL101). 12V, 3A sole power; Hardware overheat-proof through speical IC; Uninterrupted printing through multi-buffer queue configuration; Conveniently connecting with upper computer beacause of UART (5VTTL level).