CablesOnline 4-Way Metal ABCD BNC Manual Rotary Switch Box (SB-037) 5 BNC Female I/O Ports ; Fully Shielded Metal Case This unit is designed to allow the sharing of up to 4 peripherals with BNC connectors Rubber feet protect work surfaces from damage/scratches Heavy duty sealed rotary switch to prevent dust and moisture CablesOnline Part Number: SB-037