Specification: ================================= - Dimension : 26.5mm * 15.6mm - Chipset : CH340G - PCB Color: Black - Weight: 4g - 3.3V and 5V with two power output - Compatible Operating Systems: > Windows 98 / Me / 2000 / XP / 7/8/10 > MAC OS-9 > MAC OS > X-Windows CE > Linux 2.40 or later