This is a USB 2.0 to TTL UART 6PIN CP2102 Module Serial Converter. Connect MCU easily to your computerStable and chipset CP2102; USB specification 2.0 compliant with full-speed 12Mbps.Standard USB type A male and TTL 6 pin connector. 6 pins for 3.3V, , TXD, RXD, GND, 5V.All handshaking and modem interface signals. rates: 300 to 1.5 Mbps. receive buffer; 640 transmit buffer.Hardware or /X-Off handshaking supported. Event character support break transmission. USB suspend states supported via SUSPEND pins.Temperature Range: -40 to and85 Supports Windows 98SE, 2000, XP, Vista, Window7, Linux 2.40.Material: Electric PartsNet Weight: 9gModel: CP2102Main Color: Blue, Silver ToneSize: 50 x 17mm / 2" x 0.67" (L x W)package content:1 x USB to TTL Converter1 x CableNote: Random color, and 39;t accept the specified color.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is 1-3cm.", Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.