will a switch slow my conection down?

[ic0n]

hi guys

i have a nice fast connection some days (come from a university) tested to day and came in at 72.47 Mbps i have had it running faster over 100Mbps before so would a switch limit my speed?

 

[ic0n]

ok cool thanks so it wont limit the speed in any way as long as theres nothing else using the connection?

 

[ic0n]

sorry just checking i am getting the right thing here looking at this:
http://www.overclockers.co.uk/showproduct.php?prodid=NW-100-NG&groupid=46&catid=419&subcat=&name=Netgear%20GS605%205-Port%20Gigabit%20Desktop%20Switch

i am going to be using it like this: an internet connection from a router will come in to it and i then want to split the connection over 3 computers and a xbox 360.

is this the right tool for the job?