GLS Audio Rack Patch Panel w/ 12 Holes SWP-12XLR-GLS Single Space 1U Black Powder Coat Finish. Industry Standard 19" width - 1.75" height. Sturdy 4mm thick construction - Does NOT bend like other brands. 12 hole design provides plenty of diversity. Works perfect with GLS Audio XLR, Neutrik and Locking 1/4" panels.