This is a capable GPRS data card, which will deliver faster near-3G throughput when connected to a network that supports EDGE. Mobile professionals requiring an always-on data connection when out on the road now have a number of choices of PC Card to use in their notebooks. At the slower end of the spectrum are GPRS and GPRS/HSCSD cards like Vodafone's Mobile Connect Card and Sony Ericsson's GC79, which will manage download speeds of up to 56Kbps (that is, dial-up modem speed). The fastest available mobile data cards are the recent crop of 3G products, which claim broadband-like speeds of up to 384Kbps. In the middle is a GPRS/EDGE card such as Sony Ericsson's GC85, reviewed here, which -- on mobile networks that support EDGE (Enhanced Data Rates for GSM Evolution) -- can achieve near-3G speeds of 247Kbps. Producer: Sony-Ericsson Pásmo GSM [MHz] 900 / 1 800 / 1 900 Rozměry [mm] 85,6 x 54 x 5 GPRS class 10 (4+1, 3+2) EDGE Uživatelské menu Frequency bands EDGE/GPRS/CSD 850/900/1800/1900 MHz Services EDGE: 247.4kbps (DL)/ 123.7kbps (UL) GPRS: (CS4) 85.6 kbps (DL) / 42.8kbps (UL) GPRS: (CS2) 53.6kbps/ 26.8kbps (DL/UL) CSD: 9.6kbps & 14.4kbps (DL/UL)