3G MODEM HSDPA 1. HSDPA High Speed: 3.6Mbps 2. Voice call, SMS, Phone Book 3. OS: Windows, Mac etc 3G MODEM HSDPA NetworkFrequency Support (GSM): 850/900/1800/1900MHzFrequency Support (UMTS):2100MHzGPRS: Class 12EDGE: Class 12HSDPA: Category 8 Technical StandardHSDPA: 3GPP R5, up to 3.6 Mpbs DownloadUMTS: up to 384kbps DL & ULEDGE: up to 237Kbps DL &118Kbps ULGPRS: up to 85.6Kbps DL & 42.8Kbps UL ...