This is a small bracket to mount three fans into the side of an 1U device.
The item is designed to “grab” onto an 1U appliance, and provide ample cooling to the side of it. This has been created to improve cooling of a Ruckus ICX7250-24P while using quieter fans than the two default ones.
Item dimensions are 130x49x13mm, total thickness once placed is 5mm plus the fans.
For 40x40x20 fans, I suggest using either the stock fan screws (be aware that most small fans do use much smaller fan screws than the usual 120mm pc fans) or 25x3.5mm wood screws.
The author marked this model as their own original creation.