This product is either discontinued or we cannot get that from suppliers.
Intel A2UREARHSDK2, Drive Enclosure, FF Rack-mountable, Expansion Bays 2 x hot-swap - 2.5", Processor No CPU, Bays 2 x hot-swap - 2.5".
Intel 2 X 2.5" Rear Hotswap Drive Cage Upgrade Kit For 2u Rack Server (A2UREARHSDK2).