?CableCreation offers 24-month product warranty and easy to reach 24/7 lifetime customer services. ?Tinned Copper Conductor and triple shielding ensure the best data transfer rate. USB bus powered, no external power adapter required. ?Wide Compatibility: RS232 adapter works with GPS, modems, ISDN Terminal Adapters, digital cameras, label writers, palm PCs, PDAs, cashier register, CNC, PLC controller, tax printer, POS, bar code scanner, label printer and devices with DB9 SERIAL ports. ?Latest Prolific PL2303 chip supports Windows 10/8.1/8/7/Vista/XP//2000 /Linux 2.4 or above, Mac OS X 10.6 and above, macOS 10.12, 10.13,10.14,10.15 version; For first time to use, you need to install the driver, drivers can be downloaded at cablecreation website. ?Easy Connectivity: USB C to RS232 DB9 female serial cable connects a serial DB9 (9 PIN) device, such as a modem, to a Type C port on your laptop, computer. USB port with 1Mbps data transfer rate.