CB-50 I/O Connector Block with DIN Rail Mounting without cable
776164-90 - NI (National Instruments)
50-Pin Male IDA to 50-Pin Female Screw Terminal, DIN Rail, Terminal Block - The CB-50 provides 50 screw terminals for connection to I/O signals from your 50-pin NI data acquisition devices. The CB-50 includes one 50-pin header for direct connection to 50-pin cables. It features a protective plastic base and hardware for mounting on a DIN Rail.