HP un2420 EV-DO-HSDPA Mobile Broadband Module 7.2 Mbps wireless celular modem  PCI express mini card (WD301AA) Connector description: PCI-Express MiniCard, USB 2.0 interface, Network controller: EV-DO/HSDPA, Network interface: Integrated Qualcomm Gobi technology Compliance industry standards, Meets or exceeds TIA/EIA IS-98-D Antenna: Dual high efficiency 5 band antennae with spatial diversity, mounted in the display enclosure Wireless technologies: GSM/GPRS/EDGE: Class B, Multi-slot operation, coding schemes CS1  CS4 and MSC1  MSC9.; UMTS/WCDMA: Release 99 and Release 6; CDMA: 1xEVDO Release 0 and Release A, IS-95A, IS-95B, IS-2000