Where to buy GSM modem?

silentsky2007

Hi All,
Do you know where to buy GSM modem in Penang or Butterworth?
GSM modem is an electronic device where it can connect to computer through serial port to send SMS.
SIM card will inserted in the GSM modem where SMS will be charged to that SIM card.
Thanks.

chan1314

在你变成社区乞丐之前， 换成中文。