Recently I acquired a few used SAS 2.5″ 10K RPM drives and wanted to use them. I scoured the internet a few days and wound up deciding on the IcyDock MB994SP-4S 4 in 1 SAS / SATA Hot Swap Backplane RAID cage. I shopped around locally and found it at Central Computer on Stephens Creek BLVD in San Jose for about $65.00 plus tax.
I got it home, carefully installed all the SAS drives which fit perfectly and then installed the unit in my Dell T7500 Workstation only to discover that the plastic bezel that covers the 5 1/4″ drive bays is a little too large and will not allow the drives to be inserted or removed correctly without fighting with the Bezel. This I cannot blame on the IcyDock product but it was almost a fail for me. I decided to leave it as is and try it for a while. Unfortunately the drives got way too hot after about 15 minutes and I was forced to pull the unit out, carelly remove the drives and pack it back up to be returned.
Also, note that the screws that mount the 5 1/4″ form factor cage into the computer are very small and shallow and do not come close to being adequate to secure the cage in my computer. Being a Dell, the system is different also and I could barely get one tiny screw to hold the IcyDock unit in..
I do not reccomend this unit for Dell T7500 computers and I do NOT reccomend using SAS drives in this unit as they get too hot even with the fans..