FireWire 400 Hub / Repeater Kit - Connect 7 FireWire devices into a single computer - USBFireWire.com - 877-522-3779
Rocstor Portable 4 Port Hub USB-A to 4x USB-A SuperSpeed USB 3.0 - USB 3.0 Type A - External - 4 USB Port(s) - 4 USB 3.0 Port(s) - PC, Mac Y10A270-A1 810606037542
StarTech.com 4 Port USB Hub - USB 3.0 - USB A to 3x USB A and 1x USB C - USB Port Expander - USB - External - 4 USB Port(s) - 4 USB 3.0 Port(s) HB30A3A1CFB 803931136868