Mobile Broadband : Internal Dell Wireless 5550 Card 3G/HSDPA without SIM include Features & Benefits Service provider : Country-dependent. Generally, service providers that offer 3G network services. Form factor : Mini-Card™ Technology : HSPA+, HSUPA, HSDPA, WCDMA, EDGE, GPRS/GSM Client Utility : Dell Mobile Broadband Manager GPS : Supports standalone and assisted GPS functionality Flash Upgradable : Supports Firmware Flash in supported Operating Systems Wireless on/off switch : Supported Wireless catcher : Not Supported SIM (Subscriber Identity Module) : Required RoHS compliant : Yes Overview The mobile broadband technology used on the Dell™ Wireless 5550 HSPA Mobile Broadband Mini-Card are High Speed Data Packet Access (HSDPA), Wideband Code-Division Multiple Access (WCDMA), Enhanced Data GSM Environment (EDGE), General Packet Radio Service (GPRS), and Global System for Mobile (GSM). Both HSDPA and WCDMA are considered third-generation (3G) technologies. EDGE uses a faster GSM technology but is still not considered a 3G technology. GPRS is an older mobile broadband service that is still the only mobile broadband service available in some areas. Data rates throughput: HSPA+ data rates - 550 Kbps - 8 Mbps HSUPA data rates — 500-1000 Kbps HSDPA data rates — 1000-1500 Kbps WCDMA data rates — 200-300 Kbps EDGE data rates — 80-120 Kbps GPRS data rates — 30-35 Kbps Operating System: Windows® XP Service Pack 2 or higher Windows Vista (32-bit and 64-bit) Windows 7 (32-bit and 64-bit) Ubuntu Compatible with: Latitude E6320 / E5420 / 2120 / E6420 / E6520 / E6220 / E6420 ATG / E5520Manufacturer Part : 556-11120Dell Part : 556-11120