Express Card 3G Modem

http://item.taobao.com/auction/i ... 2ed5.jhtml?cm_cat=0
http://item.taobao.com/auction/i ... 7bde.jhtml?cm_cat=0
http://item.taobao.com/auction/i ... 3799a31c64255.jhtml

which one better?i am using SMV's 3G
wanna to buy a 3G modem for exchange my usb one
thxthx