1. New CH340G , the are STC recommendation USB to TTL will not appear due to a different drive / different computer as a of incompatibilities 2. Golden appearance, quality and yellow pin, pin durable than the black market, beautiful3. Not only have the power light PWR, TXD and RXD also reserved , location convenient and intuitive know whether the product is at work in the absence of the instrument case4. 3.3V and 5V by a short circuit risk 5. Support WINDOWS 98 / / 2000 / XP / Server 2003 / VISTA / Server 2008 / Win7 / Win8 32 Bit / 64Model Number:CH340Gcolor:Black+goldMaterial:PCB + electronic componentsPackage Contents:3 x CH340G Module3 x Line(Random color, 't accept the specified color)Only the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.