The high-quality aluminum housing supports SATA3/SAS3 with speeds of up to 12 Gbps for 5 x 6.4 cm / 8.9 cm 2.5-inch / 3.5-inch HDD/SSD. The development of the EMC grounding concept has been carried out with great care. Stainless steel contact springs prevent electromagnetic fields, absorb mechanical vibrations, and direct electromagnetic interference to the frame, grounding it with the device. The anti-vibration mechanism of the trays ensures quiet operation, as the stainless steel rails are equipped with shock absorbers. The JJ-N-56TM is the ideal solution for up to four 8.9 cm (3.5-inch) or 6.4 cm (2.5-inch) SATA I, II, III or SAS I, II, III hard drives in three 13.3 cm (5.25-inch) bays, providing data transfer rates of up to 12 Gb/s (SAS3). Double security is ensured by a metal lock and a sliding lock.