Asus B and W PCI CARD - Manual (Page 54)

ASUS SpaceLink B&W PCI Card 53
Chapter 3 - Wireless LAN Reference
Chapter 3
Data Rate
Select the transmit data rate (fix or auto). The data rates supported for the
ASUS SpaceLink WLAN Cards are:
Auto - The adapter will adjust to the most suitable transmission rate.
Fix - 11a: Fix data rate to 6, 9, 12, 18, 24, 36, 48, or 54 megabits per second.
11b: Fix data rate to 1, 2, 5, or 11 megabits per second.