brand new and high quality Features: Industrial level USB to RS485 converter. It makes you connect any RS485 devices directly to your computer's USB port. With TVS transient suppression for protection function, prevents internal chip malfunctions due to level incompatibility. Enough for you to deal with different occasions. for Protection against high pulse voltage. In addition, since the power is derived from the USB port, there are not any cumbersome power adapters. When attach the converter to a PC, it will connect with it quickly. This makes the converter especially suitable for PLCs, printers, POS system and industrial control devices. Specification: Material: Plastic+Metal Color: Blue Transparent+Sliver Driver: CH340/341 Size: app.7x2.8cm/2.75x1.1in Quantity: 1 Pc Note: No retail package Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement, please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x USB To RS485 Converter