StarTech.com 4 Drive 2.5-Inch Removable Mobile Rack SAS SATA Backplane SATABAY425BK (Black) Quickly and easily install or remove SATA and/or SAS drives without having to open the chassis A durable aluminum construction and dual 40mm cooling fans ensures longevity from both the drives and backplane Backed by a StarTech.com 1 year warranty and free lifetime technical support Holds up to four 2.5" SATA/SAS drives across one 5.25" bays Dual 40mm cooling fans Durable, vented aluminum construction Power/Activity LED for each drive Fully supports SAS revision 1/2 (3.0/6.0 Gbps) hard drives and controllers