QUAD SATA KIT for Raspberry PI Size Limitation?

I have a QUAD SATA KIT for Raspberry PI on pre-order and I’ve watched the video on the assembly process. It is not clear what the physical size limit is for 2.5" HDD with this kit. I would like to build my kit with four Seagate 4TB BarraCuda 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5" 15mm Laptop Internal Hard Drive ST4000LM024. In the video four 7mm HDD are being used. Will 15mm HDD fit?

Thanks

Four 15mm thickness HDD is not supported. The width of the RPI is 52mm. The max thickness per disk is 9.5mm. If you want to use 15mm HDD, you can only mount two.

Thanks for the quick response. I will use no larger than four 9.5mm HDD in my kit.

Thanks again.