Perfect to user data from Mac to transfer to Mac

This cable I had bought for the switch to a newer computer. It has worked flawlessly for all user data automatically transferred to the old eMac to a new iMac 27 ". This adapter cable had become necessary because of the new iMac has only one Firewire 800 port, but which is fully backward-compatible with FireWire 400. For me, has completely fulfilled its intended purpose of this cable.