Supports 24 x 2.5" SAS/SATA SSDs & HDDs, up to 7mm in height; Installs into 3 x standard external 5.25" bay; Connects 24 x 2.5 SAS/SATA drive through 6 x Mini-SAS HD (SFF-8643) connector; Powers 24 x 2.5" SAS/SATA drive through 6 x 15-pin SATA power connector; Transfer speed up to 12Gb/s for SAS drives & 6Gb/s for SATA drives