STARTECH,.com 8 Port USB to RS232 Serial DB9 Adapter Hub Serial adapter USB RS-232 x 8 - STARTECH,8 Port USB to RS232 Serial DB9 Adapter Hub Serial adapter USB RS-232 x 8. STARTECH,8 Port USB to RS232 Serial DB9 Adapter Hub Type B Male USB - 8 Port USB To RS232 Adapter - Marketing Information: - This 8 Port USB to RS232 Serial Hub lets you connect up to eight RS232 serial devices to your Mac or PC laptop or desktop computer through a single USB port, as though the computer offered built-on DB9M serial connectors._x000D_ The RS232 Serial Hub is compactly designed to preserve valuable workspace, and is bus-powered to eliminate the need for an external power adapter._x000D_ A cost-effective solution that bridges the compatibility gap between modern USB-capable computers and legacy RS232 serial peripherals, this dependable USB/RS232 Serial Adapter hub is backed by STARTECH,.com's Lifetime Warranty. - Item-Type: - Data Transfer Cable. Item-Part-No#: ICUSB2328 Manufacturer Warranty: Lifetime -