Japan Travel Sim Card JPSIM Day/200MB Max7day NanoSize Package+Sim Cardadapter And Sim Pin JPSIM (also known as JAPAN TRAVEL SIM card) is a prepaid subscriber identity module (SIM) card dedicated to data communications in Japan. JPSIM is an ideal product suitable to people planning to visit Japan for pleasure or business or those who are returning to Japan temporarily. You can use the service with a capacity of up to 200 MB per day at a maximum downlink speed of 150 Mbps. Even if you have used up 100 MB, you can use the service at a maximum communication speed of 200 kbps until 11:59 PM of the day. JPSIM requires no initial cost, website registration, or credit card registration, and is ready for use as soon as APN settings are made. JPSIM provides a 7-day LTE high-speed communications service at a maximum data downlink speed of 150 Mbps for up to a total of 1day/200MB MAX7days. This service is compatible with the high-speed Xi (4G/LTE) communications service and the wide-area easy-to-connect FOMA (3G) service of Japans largest carrier NTT DoCoMo.