LianLi 207 rear vent blockoff/Filter plate

A block off plate to close the lower rear vent holes in order to force fresh air to enter the side vents with fine mesh.  The side vent openings should be sufficient.  I printed it out of ABS and it is secured with 4 typical Fan self tapping screws.

For those that are afraid of too much air resistance, I added a filter version that you can cover with a piece of cloth.