Description No need external Supports Industrial PC Four layer PCB design Provides four -232 male DB9 ports for direct connection to serial devices.Colour: Blackmaterial: plasticSupport USB 20 HI-Speed.Supports various serial devices modems, PDAs, cellular phones, digital cameras, card readers, and more.Easy Plug and Play Installation.Compliance with 16C950, and is backward compatibleTransceiver 128-Byte FIFOData transfer rate of up to 9216KB / sSerial port number adjustableLED Status:On OnOff Offsystem support:windows 10/8X/7/Vista/xp 32/64-bit, Linux kernel 26x/3x/4x/ os X105 to 1010 systemSize:(L*W*H)1020*950*260cm/402 inch*374 inch*102 inchcable length:150cm/5906 inchQuantity:1SetPackage Contents:1Pc x Serial Adapter1Pc x USB cableOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.