Is Intel 3945 network adapter suitable for 50Mbit/s?

Hi,
Today i installed a modem from Ziggo (Netherlands). My internet speed is now 50Mbit/s download.
On my laptop A200-1CN PSAECA my wireless download speed is max 20Mbit. Now i think the networkadapter of my laptop is not suitable for this speed. Could anyone confirm this?
Can this networkadapter be replaced by a faster one? By myself or only at Toshiba service-centre?
Awaiting your reply.
Thanks in advance and best regards,
Paul

Your notebook is delivered with Intel 3945ABG WLAN cards. Support networks are 802.11a/g. So in g mode you should have this speed, even higher than that.
But the WLAN speed depends on many different factors:
Which kind of DSL package do you have?
Is the right WLAN mode set in router and in WLAN card properties?
Maybe is data source overloaded and you cannot use this speed for download.
Generally speaking your notebook should not have problems with this WLAN speed but other factors are very important too.

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