Product DESCRIPTIONPolycom VSX systems 9.0 Software upgrade is ideal for organizations using old 12Mb and 64Mb VSX systems and never had any upgrades on it. It software makes your VSX compliant to new protocols without making too much of a change. It is as good as buying a new VSX system with all latest updates. To check details of your system see Model name on the System Information screen for system memory
Must to have VSX systems 9.0 software upgrade for all VSX 128megabytes and 64megabytes systems with 8.5.3 or lower software