SIMMAX GSM 16-Number-in-1 SIM Card with USB Card Reader/Writer and Cloning Software
Switch between up to 16 cell phone numbers on the fly without rebooting cell phone (must be cloned from original SIM cards first) - English + Chinese STK menu languages (configurable) - SIM cloning and phonebook software tools included - USB SIM card reader + writer included . - Note : if you are new to SIM card cloning DX recommends the new 2008-Edition 128K MagicSIM package for higher compatability and more advanced STK features.