This USB to RS232 adapter provides a USB host interface to devices that require an RS232 serial connection via a DB15 female Dsub connector. The 5 meter black cable offers flexibility for placement and reliable communication between a computer and legacy serial equipment. Key benefits Enables modern PCs and laptops without RS232 ports to connect to legacy serial equipment through USB. Provides a DB15 female RS232 interface for direct connection to devices using a DB15 serial port. Long 5 meter cable supports flexible installation layouts and reduces the need for additional extensions. Suitable for data transfer, configuration, and maintenance tasks with devices that use RS232 serial communication. Key attributes Functionality: USB to RS232 adapter with a DB15 female Dsub connector for serial communication. Compatibility: Intended for devices that use RS232 with a DB15 interface and for USB hosts requiring a serial bridge. Connectors: USB on one end; DB15 female RS232 on the other end. Cable length: 5 meters. Color: Black. Material: Not specified in the listing. Performance: Supports standard RS232 serial communication over USB for bidirectional data transfer. Length accuracy: 5 meters as stated in the product title.