OCIA.net has posted a review of the Sunbeam Transformer Case. Below is a direct quote from the review:
"Sunbeam has listened to the cries of enthusiasts for years and has included a 120mm front intake fan hole. I am not sure why they included a fan bracket, as a 120mm fan can be mounted directly to the steel shell behind it, eliminating the need for the bracket. Personally, I removed and discarded this bracket. Another great feature visible in the photo above is the fan grill. Many manufacturers use the tiny punched-holes, which do not provide adequate airflow for the fan. This style, with much larger holes, is less restrictive and allows for more cool air to flow into the case. Unfortunately, a 120mm fan was not included for this location. One can be purchased separately from Sunbeam, or you can simply use one you already own."
ocia.net review
"Sunbeam has listened to the cries of enthusiasts for years and has included a 120mm front intake fan hole. I am not sure why they included a fan bracket, as a 120mm fan can be mounted directly to the steel shell behind it, eliminating the need for the bracket. Personally, I removed and discarded this bracket. Another great feature visible in the photo above is the fan grill. Many manufacturers use the tiny punched-holes, which do not provide adequate airflow for the fan. This style, with much larger holes, is less restrictive and allows for more cool air to flow into the case. Unfortunately, a 120mm fan was not included for this location. One can be purchased separately from Sunbeam, or you can simply use one you already own."
ocia.net review