And CNTI says it has also launched a plug compatible multi-point networking machine for transferring data between remote IBM mainframes; called ChanneLink 5137, the system is claimed to provide concurrent support for a maximum of six host mainframes at a rate of 4.5Mbytes-per-second over leased Megastream communication lines, and also offers automatic re-routing, load balancing and in-built network manage-ment: support for one channel and two serial links costs UKP52,000, rising to UKP61,200 for two channels.