StarTech.com 10-Port Industrial USB 2.0 HUB, Rugged USB Hub w/ESD Level 4 Protection, DIN/Wall/Desk Mountable USB-A Hub, Multiport USB Hub
StarTech.com USB to Serial Hub - 16 Port - COM Port Retention - Rack Mount and Daisy Chainable - FTDI USB to RS232 Hub
StarTech.com USB to Serial Hub - 8 Port - COM Port Retention - Rack Mount and Daisy Chainable - FTDI USB to RS232 Hub