I plan to add a dual 2.5" harddisk cage with HDD1 fan into the 5.25" drive bay, and already got the cage on hand. Just one little problem: I must take out the 5.25" drive bay cover to let the HDD1 fan working properly.
Later I found that there's actually a filter-like 5.25" cover for T5600 as picture below. Does anyone know the part number for it? Or is there anything similar that can fit into the 5.25" bay of T5600?
I finally find that this mesh bezel cover bundled with the dual 2.5" harddisk cage (part number R9PXF) with no specific part number on it's own. For those in need with the same question, you may refer to this post for related parts and corresponding part numbers.