Applies to; Saffire Pro 14, Saffire Pro 24 & Saffire Pro 24, Saffire Pro 26, Saffire Pro 40, Liquid Saffire 56 

The above audio interfaces are all Firewire 400 devices and so feature the Firewire 400 style port as pictured below. 

Despite this, they can be connected to both Firewire 400 and Firewire 800 ports on your Mac/PC.

So,

• If your computer features a Firewire 400 port, you will need a Firewire 400 to Firewire 400 cable.
• If your computer features a Firewire 800 port, you will need a Firewire 400 to Firewire 800 cable.