(4 Pack) ProCraft SVP578-3 1/4" Female to 1/4" Female Feed Thru Adapter For D Panel Mounting. This connector can act as either Mono (TS) or Stereo (TRS). This is a great new edition to our ProCraft Plug N' Play feed Thru adaptors. No longer do you have to worry about your 1/4 cable coming unplugged during a show. And better yet, it is solderless. Features: Connector Type: Adapter Locking device: latch lock Mounting direction: front & rear Chassis shape: D Shell plating: Nickel Standardized D sized 24 mm panel cutout