KVN station has two recording systems. One is Mark5B and the other is DIR-1000 recording system.
Mark5B is a hard disk recording system developed at Haystack observatory. The maximum data rate of Mark5b system is 1Gbps. For more details, please see http://www.haystack.mit.edu/tech/vlbi/mark5.
In addition to the mark5b system, DIR-1000 tape recording system was equipped at KVN station. This recording system was provided by NAOJ and has been used for test observations of KVN+VERA combined array. Data rate of this recording system is 128Mbps. Its data should be correlated at the Mitaka correlation center of NAOJ.