Sony hkcu-1005 HDSDI output option board for HDCU1500 , hdcu1000 etc. (adds 4 extra HD outputs to the CCU.Can be setup for 4x HDSDI outputs or SDI outputsIs labelled at the front as drX5 board (same as the main HD board i the HDCU1500gives you another 4x HDSDI outputs on your CCUComes with rear back connector alsofull working orderPrice is for 1 front back (DRX5 drx-5 ) and 1 rear connector also with the 4x bnc connectors.