ICY DOCK Black Vortex MB074SP-B 4 Bays 3.5" SATA Hard Drive Backplane Cooler Cage with 120mm Front LED Fan in 3X 5.25 Bay (Internal CAGE) Fits 4 x 3.5 HDD into 3 x 5.25 Device Bays Supports SATA & SAS HDD Interface Supports 2.5 to 3.5 SSD converters Huge 120mm LED cooling fan Fan is replaceable with aftermarket fans