... S3C2451 (533MHZ)3Mobile communicationThe built-in GSM/GPRS module, supportGSM/GPRS Class10, GSM 10 multiplexing4RAM128Mbyte ,F-ROM ... 14Standard communicationThe built-in 802.11 b/g wireless communication function, communication rate Up to 54 ... 18Industrial gradeIP5419RemarkCan be expanded The built-in GSM/GPRS module, supportGSM/GPRS Class10, GSM 10 multiplexing20Standard configurationBluetooth V2.1 ...