I used this to hold my Oceanic ProPlus 4 computer and have been using one for many years now. I recommend this product, great quality and made to be very functional. There are several variations and I have one with a flex cord between the two pieces that separate for my camera. Not cheap, but I think it's worth the price. Large snap hook makes it easy to use and the quick disconnect is easy to use underwater with one hand not looking at it.
The only thing I didn't know when submitting this is if my name would be displayed, so I didn't use my real name. It should clearly indicate if my name would be displayed along with the review.