Features. Low profile design for small form factor applications such as industrial small PCs, surveillance, embedded systems, automation systems, aerospace systems and mobile DVR systems. Dual Locks design - Metal key lock for drive security and thumb screw lock for impact/vibration. Removable drive tray design for easy maintenance which fully supports SATA hot - swap. Active Power Technology APT - individual led only powers up if there is drive installed in the drive bay. EMI Grounding - protects hard drives from electrical damage. Anti - Dust Flap prevents dust from entering when device not used. Locking latch for both SATA 7 pin data port and SATA 15 pin power port. Fits 1 x 7mm to 15mm height 2.5 in. SATA HDD or SSD in a 3.5 in. floppy drive bay