Brother MFC 990cw - Manual (Page 212)

200
Interfaces
D
1 Your machine has a Hi-speed USB 2.0 interface. The machine can also be connected to a computer that has a USB
1.1 interface.
2
Third party USB ports are not supported for Macintosh
®
.
3 See the Network User's Guide for detailed network specifications.
USB
A USB 2.0 interface cable that is no longer than 2.0 m.
1 2
LAN cable
3 Ethernet UTP cable category 5 or greater.
Wireless LAN Your machine supports IEEE 802.11b/g wireless communication
with your wireless LAN using Infrastructure mode or a wireless
Peer-to-Peer connection in Ad-hoc Mode.