On May 13, 2015, at 9:04 AM, Harry Jacobson-Beyer <[email protected]> asked:
> The drive has a Firewire 400 port and a USB 2 port. The computer has a > thunderbolt port and I connect the drive to my computer with a 400 to 800 > firewire adapter connected to a firewire 800 to Thunderbolt adapter. > > Do those adapters slow transfer speeds? Would I be better off using the > drives USB 2.0 port to connect it to my computer? “Theoretically” you’re better off with USB2 because its top speed is 480 mb/s compared to the top speed of 400 mb/s on Firewire 400. But, I’ve always found Firewire to be faster in practice because USB shuttles all the traffic through the machine’s processor while Firewire has direct memory access. When there’s heavy USB traffic, the machine does little else. With Firewire, other processes can keep on running while the data is being shoveled around.
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