UGREEN USB to RS 232 DBS Serial Adapter 

Cable is designed to connect serial devices such as DB9 equipped Pcs, routers, GPS, barcode scanners, label writers, serial modems, digital cameras, card readers, palm PCs, Cellular Phones, PDAs, or ISDN Terminal Adapters through USB port with 1Mbps data transfer rate.

• Connectors : USB Male, RS-232 DB9 Male
• Connect a RS-232 serial device such as a modem to a USB port on your computer
• Supports Windows 10 / 8.1 / 8/7 Vista / XP / 2000 and Mac OS X 10.6 and above
• Uses latest Prolific PL2303 chipset
• Plug & Play after one time driver installation
• Maximum transfer rate up to 1Mbps
• Supports automatic handshake
• Powered by USB port, no external power adapter required