Fear there is none - can't see any mounting/screw holes on the narrow sides. The shop information seems to be generic for all modules and not applicable to all model variants listed.
I installed so far 1 GS324 (comes with already bracket for rackmount)
and also installed GS316 below. Because the GS316 is a little longer that GS324, I had no choice to make a search for shorter bracket. I found that Trendnet ETH-11MK Kit worked no so bad.
Of course it as been made for higher unit like GS324 but that gives me a space to put Ethernet cables to the other side.
I bought them on Amazon and it was cheap.
I recently bought GS316-PP POE switch who has exactly the size of GS316 I already have. I'll do the same thing.
Plus, I had to install some power supply in my rack hiding them under the drawers. Those ETH-11KM of great for that too.
Alain
Top is GS324 with Netgear BraketBelow GS324 is GS316 with Trendnet BracketThere is a little space below GS316 for wiresUsing Trendnet bracket to hold power supplyView of power supply installed
The GS316 is actually wall mountable and usually a wall mount kit is included. You maybe pertaining to GS324 and GS348 where it is spec'd to be rackmountable. A rackmount kit for this switch may not be available but you may want to check @Alpacasi 's recommendation.
