Stable and reliable chipset CP2102..
Baud rates: 300 bps to 1.5 Mbps.. Connect MCU easily to your computer!.. Standard USB type A male and TTL 5pin connector. 5pins for 3.3V, RST, TXD, RXD, GND & 5V.. Supports Windows 98SE, 2000, XP, Vista, Window7, Mac OS 9, Mac OS X & Linux 2.40