OWC 4TB Mercury Elite Pro USB 3.0/FireWire 800/eSATA
Firewire to USB Adapters and Converters - Newegg.com
Amazon.com: LaCie Rugged Triple 1TB External Hard Drive Portable HDD – USB 3.0 FireWire 800 compatible for Mac and PC Computer Desktop Workstation Laptop (STEU1000400) : Electronics
Apple Thunderbolt to FireWire Adapter - Apple
USB 3.0 SATA HDD Dock (USB + FireWire 400/800)
800U3 FireWire 800 USB301394 special 25-inch mobile hard disk box _ - AliExpress Mobile