StarTech.com USB to Serial Hub

16 Port - COM Port Retention - Rack Mount and Daisy Chainable - USB to RS232 Hub - Convert a USB port into 16 RS232 serial ports in an industrial rack-mountable chassis, and daisy chain multiple hubs for a scalable solution - 16-Port USB-to-Serial Adapter Hub - USB to RS232 port adapter with Terminus chipset and COM port retention