Radio Technology & Frequency Bands; Max. Connectivity Speeds - US Robotics USR3520 User Manual

Pinout
Radio Technology & Frequency Bands
 3G UMTS/HSDPA/HSUPA/HSPA+: 800- 850/900/1900/2100 MHz and AWS band (1700/2100MHz)
(B1, B2, B4, B5, B6, B8)
 2G GSM/GPRS/EDGE: 850/900/1800/1900 MHz
 CDMA 1xRTT/EV-DO rev0/EV-DO revA (USR3520 only): 800/1900MHz (BC0, BC1)

Max. connectivity speeds

 HSPA+: 14.4Mbps (Cat 10) down, 5.76 (Cat 6) up
 EV-DO RevA mode: 3.1Mbps FL / 1.8Mbps RL
 HSPA+ Rel 7 SW features CPC (DTX/DRX), Enhanced L2, EF-DPCH
Modemulator User Guide
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