Specification Brand : DSD TECH BulletPoint1 : Support 4 kinds of TTL logic levels: It is powerful enough to handle almost all TTL level communications. It is compatible with 5V, 3.3V, 2.5V, 1.8V TTL levels. BulletPoint2 : Built-in Silicon Labs CP2102 chip: Industrial chip, super stable. The maximum transmission speed can reach 1Mbps BulletPoint3 : Protective case: Come with a protective case, this transparent protective case can effectively prevent static interference from the hand and prevent accidental short circuit. BulletPoint4 : Compatibility: This USB to TTL adapter is compatible with Windows 7, 8, 10 and various Linux OS and Mac OS BulletPoint5 : Customer Support:Offering permanent technical support and a 1-year product replacement service. All questions will be answered for you within 1 business day BulletPoint6 : SV1115IPEXGB Color : Transparent/Green CompatibleDevices : Router CompatibleDevices1 : GPS Navigation System CompatibleDevices2 : Camera CompatibleDevices3 : Printer Configuration : Standard ConnectorGender : Male-to-Male ConnectorType : USB CurrentRating : 1 amps CustomerPackageType : Standard Packaging DataTransferRate : 0.001 gigabits_per_second Edition : Standard Edition ExternallyAssignedProductIdentifier : 8939317680976 ExternallyAssignedProductIdentifier1 : 794251082648 ExternallyAssignedProductIdentifier2 : 0794251082648 ExternallyAssignedProductIdentifier3 : 00810154011803 FinishType : Silicon Frequency : 60 GHz HardwareInterface : pci IncludedComponents : User manual, cable or connector. IndoorOutdoorUsage1 : outdoor IndoorOutdoorUsage2 : indoor InputVoltage : 5 volts ItemName : DSD TECH SH-U09A1 USB to TTL Adapter Support 1.8V 2.5V 3.3V 5V Logic Level ItemPackageDimensions_Height : 9.2 centimeters ItemPackageDimensions_Length : 2.6 centimeters ItemPackageDimensions_Width : 4.2 centimeters ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : computer-cable-serial-adapters Manufacturer : DSD TECH Material : Plastic ModelName : USB to Serial RS232 Adapter ModelNumber : SH-U09A1 NominalPower : 7.5 watts NumberOfItems : 1 NumberOfLithiumIonCells : 4 NumberOfPins : 9 NumberOfPorts : 1 OperatingSystem : Windows 7 PackageLevel : unit PartNumber : SH-U09A1 PowerPlugType : no_plug ProductDescription : 6 in One USB to UART Serial Interface Module CP2102 USB TTL 485 232 Mutual Transfer Six in ONE Multifunctional interface module: USB to TTL USB to 232 USB to 485 TTL to 232 TTL to 485 232 to 485 Features: CP2102 core chip : CP2102 USB to serial chip is the best quality , most stable performance far exceeds the cost of the same chip , such as PL2303, FT232, CH341 and so on. High-speed, reliable, stable is capable of leading CP2102 USB to serial module sales in the important reasons. Ultra-small size : the circuit board only 3.1cm X 1.8cm. Ultra- small size , lack of a U disk size , only with a USB port width , even on those two USB ports from a very tight laptop can easily be placed side by side two . 3.3V and +5 V Compatibility: This product perfectly supports 3.3V. Now a lot of high-end microcontroller, such as ARM, STM32, DSP , adopted 3.3V. Additional modules are only compatible 5V level , they do not have 3.3V voltage output function. Power Output: This module can be powered through to the microcontroller system to facilitate debugging. 5V-500mA or 3.3V-100mA. Overcurrent protection : Onboard resettable fuse , even if the positive and negative short-circuit will not damage the circuit board or computer. If there is a short circuit or current exceeds 500mA , the fuse will automatically disconnect , to be short-circuited fuse circuit to restore non- normal . Effectively protect the security of your computer. Transceiver indicator : When the serial line to send or receive data lines , the board will receive indicator lights for easy debugging.