Connect a RS232 serial device to the USB port on your computerConnectors: USB-A (M); DB25 (M); DB9 (M)No external power is requiredSupports data transfer rates up to 230 kbpsPremium double-shielded cable with gold-plated contacts, tinned copper braid and an aluminum Mylar foil shield that eliminates cross-talk and reduces EMI/RFI interferenceCompatible with Windows, Mac and Linux computersCompatible with Android tablets / phones with USB Host Mode (OTG) support and OS version 3.2 and above