USB To DMX PCB Box

I decided to create this simple box to house a small usb to dmx converter that I bought off ebay (http://www.ebay.com.au/itm/USB-to-TTL-RS485-Converter-Adapter-Module-FT232RL-Dual-function-Protection-GO/351563049860?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649)

The hole in the back and inner clip is designed to fit a CAT 5 cable with an XLR connector on the end.
All bolts are M3 and holes are pre-threaded