OWC 4TB Mercury Elite Pro USB 3.0/FireWire 800/eSATA
OWC Mercury Elite Pro FireWire 800 & USB... at MacSales.com
Cable USB MALE To Firewire Plug To Mini 4-Pin To Firewire Adaptor for Peripheral Devices That Are Compatible Only with This TYPE of Adaptor - Walmart.com
Cable Interface Connections: USB 3.0, USB-C, Thunderbolt & Firewire
LaCie Rugged Triple 301984 1 TB External Hard Drive - USB 3.0, FireWire/i.LINK 800 - 5400 rpm - Walmart.com
High Flex, USB 3.0 A Male to C Male with Dual Screw Locking Cable, 1m, 2m, 3m, 5m - NTC Distributing
Amazon.com: Firewire 800 4-9 Pin Dv Cable/cord/lead for Lacie D2 Quadra USB 3.0 2tb 301543u : Electronics
Firewire to USB Adapters and Converters - Newegg.com
What Is a Firewire® to USB Adapter? Connecting, Transferring & More